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Access Tokens and Other Credentials
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href="/docs/build-basics/general-considerations/collecting-information" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Collecting Information</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Language Preferences"}" href="/docs/build-basics/general-considerations/language-preferences" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Language Preferences</a></div></div></div><div aria-expanded="false" aria-controls=":R2q99l6:" class="recursive-nav-item_nav-item-wrap__7yT4s recursive-nav-item_inner-sub-cat__ngiQT"><a data-tracking-id="left-nav-link" 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navigation items" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 recursive-nav-item_expand-button__OaGCd"><svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="m4 4.586 4 4 4-4L13.414 6 8 11.414 2.586 6 4 4.586Z" fill="#7B61FF"></path></svg></button></div><div id=":R3a99l6:" inert="true" role="region" class="recursive-nav-item_items-container__BBrAQ"><div class="recursive-nav-item_content__WNo9i"><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Custom Attributes"}" href="/docs/devtools/customattributes/overview" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Custom Attributes</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Idempotency"}" href="/docs/build-basics/common-api-patterns/idempotency" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Idempotency</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Pagination"}" href="/docs/build-basics/common-api-patterns/pagination" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Pagination</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Optimistic Concurrency"}" href="/docs/build-basics/common-api-patterns/optimistic-concurrency" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Optimistic Concurrency</a></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Clear Object Fields"}" href="/docs/build-basics/clearing-fields" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy left-nav-items_link__skoFI left-nav-items_sub-level__bbmd6 focus-ring-styles_focus-ring__5P6v0"><span class="left-nav-items_depth-space__b597h"></span>Clear Object Fields</a></div></div></div><div class="recursive-nav-item_nav-item-wrap__7yT4s"><a data-tracking-id="left-nav-link" data-tracking-extra="{"title":"Square eCommerce APIs"}" href="/docs/ecommerce-api" 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data-tracking-id="toc-accordion-clicked" aria-expanded="true" aria-controls=":R116cpddl6:" class="box_m-t-1x__GR9iT box_m-b-1x__b2HHn box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 accordion_accordion__vbQko"><h5 class="box_p-t-1x__1ZOZv box_p-b-1x__E6rAE heading_base__MS64u heading_heading-5__lcRR4">On this page</h5><svg width="20" height="20" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt" viewBox="0 0 16 16"><path fill-rule="evenodd" clip-rule="evenodd" d="m12 11.414-4-4-4 4L2.586 10 8 4.586 13.414 10 12 11.414Z" fill="#7B61FF"></path></svg></button><div role="region" id=":R116cpddl6:" class="accordion_container__Q6e6I accordion_expanded__gzqmt"><div class="accordion_content__zl9fW"><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/build-basics/access-tokens#overview" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Overview</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/build-basics/access-tokens#access-token-types" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Access token types</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/build-basics/access-tokens#get-a-personal-access-token" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Get a personal access token</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/build-basics/access-tokens#get-an-oauth-access-token" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Get an OAuth access token</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/build-basics/access-tokens#use-an-access-token-in-your-code" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Use an access token in your code</a></div><div class="box_m-b-1x__b2HHn"><a data-tracking-id="sidebar-link-clicked" href="/docs/build-basics/access-tokens#credential-types" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">Credential types</a></div><div><a data-tracking-id="sidebar-link-clicked" href="/docs/build-basics/access-tokens#see-also" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_">See also</a></div></div></div></div><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#overview" id="overview" aria-label="anchor link for overview" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for overview" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Overview</h2></div></div><p>Access tokens are credentials that allow applications to securely interact with Square APIs. An access token authenticates your application and authorizes access to resources (such as customers, orders, and payments) in a Square account. Proper credential management and storage is critical for maintaining security.</p><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#access-token-types" id="access-token-types" aria-label="anchor link for access-token-types" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for access-token-types" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Access token types</h2></div></div><p>You must provide a valid access token when using Square APIs to access resources in your own Square account or other Square accounts.</p><p>There are two types of access token:</p><ul><li><strong>Personal access token</strong> - Provides unrestricted Square API access to resources in a Square account. For example, you can use your own personal access token in Square API calls to perform any activity on any resource in your Square account.</li><li><strong>OAuth access token</strong> - Provides authenticated and scoped Square API access to resources in a Square account. Applications use OAuth access tokens in Square API calls to access resources on behalf of account owners. For example, when Square sellers sign up to use an application, they grant the specific permissions (scopes) that the application needs to perform some activity on their account resources.</li></ul><span class="markdown-anchor_container__0qZni"><a id="get-personal-access-token" class="markdown-anchor_anchor__lBAV_"></a></span><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#get-a-personal-access-token" id="get-a-personal-access-token" aria-label="anchor link for get-a-personal-access-token" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for get-a-personal-access-token" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Get a personal access token</h2></div></div><p>Each application you create in the Developer Console provides a personal access token for testing in the production environment and a separate Sandbox access token for testing in the <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/devtools/sandbox/overview" class="nodes_markdown-link__1J6_a">Square Sandbox</a></span>. These tokens grant full access to the resources in your own Square account.</p><ol><li><p>Sign in to the <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/apps" class="nodes_markdown-link__1J6_a">Developer Console</a></span> and open an application. If needed, follow the steps in <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/get-started" class="nodes_markdown-link__1J6_a">Get Started</a></span> to create a Square account and an application.</p></li><li><p>In the left pane, choose <strong>Credentials</strong>.</p></li><li><p>Get your production or Sandbox access token:</p><div data-testid="tabset" role="tablist" class="box_m-b-4x__jr_IJ tab_tabset__c44HM markdown-tabset_tabset__G8lmz"><div class="box_b-t-l-std__qC_VL tab_tabset-underline__Wu7oW"></div><div class="tab_tabset-item__6fS_h tab_small__K59MB"><button data-testid="tabset-item" data-tracking-id="tabset-item" data-tracking-extra="{"label":"Production"}" role="tab" aria-label="Production" aria-selected="true" aria-controls="production-panel" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0"><p class="box_p-b-1x__E6rAE text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R text_color-20__myvq7 tab_selected__c2f_5">Production</p></button><div class="box_b-tl-r-6__3cnv8 box_b-tr-r-6__P9jUr box_b-bl-r-6__Z_gEo tab_underline__AUKDk"></div></div><div class="tab_tabset-item__6fS_h tab_last__LmwSF tab_small__K59MB"><button data-testid="tabset-item" data-tracking-id="tabset-item" data-tracking-extra="{"label":"Sandbox"}" role="tab" aria-label="Sandbox" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0"><p class="box_p-b-1x__E6rAE text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R text_color-20__myvq7">Sandbox</p></button></div></div><div role="tabpanel" id="production-panel"><div data-testid="markdown-tab-Production" class="box_m-t-3x__rN_qC markdown-tabset_tab__0c8OW"><ol><li>At the top of the page, choose <strong>Production</strong>.</li><li>In the <strong>Production Access token</strong> box, choose <strong>Show</strong> and copy your token.</li></ol></div></div></li></ol><p>The following animation shows how to copy your Sandbox access token from the <strong>Credentials</strong> page in Sandbox mode.</p><p><img alt="An animation showing the process for getting the Sandbox access token from the Developer Dashboard." loading="lazy" width="700" height="564" decoding="async" data-nimg="1" style="color:transparent" srcSet="https://images.ctfassets.net/1nw4q0oohfju/23ri8kcnAFmJR2AUNpVSLF/8753fb5d3179de400dc06fb967605417/sandbox-credentials-page-developer-dashboard.png?fm=webp&w=750&q=75 1x, https://images.ctfassets.net/1nw4q0oohfju/23ri8kcnAFmJR2AUNpVSLF/8753fb5d3179de400dc06fb967605417/sandbox-credentials-page-developer-dashboard.png?fm=webp&w=1920&q=75 2x" src="https://images.ctfassets.net/1nw4q0oohfju/23ri8kcnAFmJR2AUNpVSLF/8753fb5d3179de400dc06fb967605417/sandbox-credentials-page-developer-dashboard.png?fm=webp&w=1920&q=75"/></p><div data-testid="aside" data-test-type="tip" class="box_m-t-4x__FOwYa box_m-b-4x__jr_IJ box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 box_b-r-6__eFn6m box_sh-10__rHmX2 aside_aside__hEkR5 aside_tip__Qt1v6"><h4 class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R">Did you know?</h4><div data-testid="aside-content"><p>When you're signed in to <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/explorer/square" class="nodes_markdown-link__1J6_a">API Explorer</a></span>, the access tokens associated with your account are available in the <strong>Access token</strong> dropdown.</p></div></div><p>The following guidelines apply to protecting personal access tokens:</p><ul><li><p>Don't hardcode access tokens in your code. Consult relevant documentation to find best practices for securely storing credentials, including framework-specific considerations (for example, encrypted credentials for Ruby on Rail) and platform-specific considerations (web or mobile applications). One option might be to use your cloud provider's secrets manager, such as AWS Secrets Manager, Google Cloud Secret Manager, or Azure Key Vault.</p></li><li><p>Don't share access tokens. A personal access token can be used to impersonate the account owner and gain full access to account resources. For example, if you paste a cURL code snippet when debugging an issue with Square support or on community forums, make sure to redact the access token used in the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">Authorization</code> header.</p></li></ul></article><article data-testid="markdown-doc" class="text_base__bZ6a4 text_paragraph-30___agDz nodes_article__2nMA2"><span class="markdown-anchor_container__0qZni"><a id="get-oauth-access-token" class="markdown-anchor_anchor__lBAV_"></a></span><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#get-an-oauth-access-token" id="get-an-oauth-access-token" aria-label="anchor link for get-an-oauth-access-token" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for get-an-oauth-access-token" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Get an OAuth access token</h2></div></div><p>The process of getting an OAuth access token depends on whether the token is used for an in-production application or for testing in the Square Sandbox during development.</p><div data-testid="tabset" role="tablist" class="box_m-b-4x__jr_IJ tab_tabset__c44HM markdown-tabset_tabset__G8lmz"><div class="box_b-t-l-std__qC_VL tab_tabset-underline__Wu7oW"></div><div class="tab_tabset-item__6fS_h tab_small__K59MB"><button data-testid="tabset-item" data-tracking-id="tabset-item" data-tracking-extra="{"label":"Production"}" role="tab" aria-label="Production" aria-selected="true" aria-controls="production-panel" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0"><p class="box_p-b-1x__E6rAE text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R text_color-20__myvq7 tab_selected__c2f_5">Production</p></button><div class="box_b-tl-r-6__3cnv8 box_b-tr-r-6__P9jUr box_b-bl-r-6__Z_gEo tab_underline__AUKDk"></div></div><div class="tab_tabset-item__6fS_h tab_last__LmwSF tab_small__K59MB"><button data-testid="tabset-item" data-tracking-id="tabset-item" data-tracking-extra="{"label":"Sandbox"}" role="tab" aria-label="Sandbox" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0"><p class="box_p-b-1x__E6rAE text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R text_color-20__myvq7">Sandbox</p></button></div></div><div role="tabpanel" id="production-panel"><div data-testid="markdown-tab-Production" class="box_m-t-3x__rN_qC markdown-tabset_tab__0c8OW"><p>In-production applications start the OAuth flow by sending each seller to the Square <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/oauth-api/authorize" class="nodes_markdown-link__1J6_a">Authorize</a></span> endpoint. On successful flow completion, Square returns an OAuth access token to your application.</p><p>The OAuth flow includes the following high-level stages:</p><div class="box_m-t-5x__L06CC box_m-b-5x__RvXTy table_outer__9zV2D"><div data-testid="table" class="table_container__Ze6L1"><table class="table_table__wDx_x"><thead><tr><th class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Stage 1: Authorization</th><th class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Stage 2: Callback</th><th class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Stage 3: Token request</th></tr></thead><tbody><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Using an <span data-testid="tooltip" class="tooltip_tooltip__UtAId"><span slot="trigger" class="tooltip_text__SYUVD">authorization URL</span></span>, your application sends the seller to the Square authorization page where they can sign in to Square and grant the permissions you requested.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Square redirects the seller to the redirect URL that you registered for your application and includes an authorization code in the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">code</code> query parameter.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Your application calls <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">ObtainToken</code> and sends the authorization code, your application ID, and other fields. Square returns an OAuth access token and refresh token.</td></tr></tbody></table></div></div><p>Store the OAuth access token and refresh token in a secure storage solution. Don't expose them in client-side code or version control systems. You must refresh OAuth access tokens periodically before they expire. For more information, see <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/how-it-works" class="nodes_markdown-link__1J6_a">OAuth API</a></span> and <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/best-practices" class="nodes_markdown-link__1J6_a">OAuth Best Practices</a></span>.</p></div></div><div data-testid="aside" data-test-type="info" class="box_m-t-4x__FOwYa box_m-b-4x__jr_IJ box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 box_b-r-6__eFn6m box_sh-10__rHmX2 aside_aside__hEkR5 aside_info__6S1z3"><h4 class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-30___agDz text_semi-bold-30__Z4S5R">Note</h4><div data-testid="aside-content"><p>When you're ready to test the code flow in your application, see <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/build-with-oauth" class="nodes_markdown-link__1J6_a">OAuth Walkthrough: Test Authorization with a Web Server</a></span>. When your application is ready for production, see <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/movetoprod" class="nodes_markdown-link__1J6_a">Move OAuth from the Sandbox to Production</a></span>.</p></div></div><span class="markdown-anchor_container__0qZni"><a id="use-access-token" class="markdown-anchor_anchor__lBAV_"></a></span><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#use-an-access-token-in-your-code" id="use-an-access-token-in-your-code" aria-label="anchor link for use-an-access-token-in-your-code" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for use-an-access-token-in-your-code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Use an access token in your code</h2></div></div><p>Access tokens are sent as bearer tokens in the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">Authorization</code> header of Square API requests.</p><ul><li><p>Production requests use the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">https://connect.squareup.com/v2</code> base URL with an access token that's valid for the production environment, as shown in the following cURL request:</p><div class="box_m-t-3x__rN_qC code-block_header__urOUF code-block_floating__ocyWk code-block_request__DDmE0 dark-mode-theme"><div></div><div class="box_m-r-1x__uw0iY box_m-t-5x__L06CC"><div class="code-block-action-button-group_button-group__QsOaL"><div></div><div><div class="icon-button_dropdown__e8K_5"><button data-testid="copy-code-block" data-tracking-id="copy-code-block" slot="trigger" aria-label="Copy code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M11 6a1 1 0 1 0 0 2h5v6a1 1 0 1 0 2 0V8a2 2 0 0 0-2-2h-5ZM9 16v-5h4v5H9Zm-2-6a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1H8a1 1 0 0 1-1-1v-7Z" fill="#7B61FF"></path></svg></button></div></div><div><div class="icon-button_dropdown__e8K_5"><button data-testid="expand-code-block" data-tracking-id="expand-code-block" slot="trigger" aria-label="Expand code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M7 3H13V9H11V6.414L6.414 11H9V13H3V7H5V9.586L9.586 5H7V3Z" fill="#7B61FF"></path></svg></button></div></div></div></div></div><div data-testid="code-block" data-language="curl" class="box_m-b-3x__A9ryy box_b-b-l-std__q5XI3 box_b-l-l-std__REGyC box_b-r-l-std__Q4dy4 box_b-r-6__eFn6m code-block_code-block__7vruq code-block_request__DDmE0 dark-mode-theme markdown-code-block_limit-height__WOJUw"><pre tabindex="-1" class="box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 code-block_main__7BHb4"><div data-testid="code-block-contents" data-line-numbers-active="true" style="--line-number-length:1ch" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 code_code__4FNSr highlight_code-highlight___caZ6 highlight_curl__KJRqs code_line-numbers___xHrc"><span data-line-number=""></span>curl https://connect.squareup.com/v2/locations \ <span data-line-number=""></span> -H <span class="hljs-string">'Square-Version: 2024-07-17'</span> \ <span data-line-number=""></span> -H <span class="hljs-string">'Authorization: Bearer {PRODUCTION_ACCESS_TOKEN}'</span> \ <span data-line-number=""></span> -H <span class="hljs-string">'Content-Type: application/json'</span></div></pre><div class="markdown-code-block_bottom-bar___1uwP"><div class="markdown-code-block_bar-position__B59Cr markdown-code-block_footer-action__9cq8l"></div></div></div></li><li><p>Sandbox requests use the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">https://connect.squareupsandbox.com/v2</code> base URL with an access token that's valid for the Sandbox environment, as shown in the following cURL request:</p><div class="box_m-t-3x__rN_qC code-block_header__urOUF code-block_floating__ocyWk code-block_request__DDmE0 dark-mode-theme"><div></div><div class="box_m-r-1x__uw0iY box_m-t-5x__L06CC"><div class="code-block-action-button-group_button-group__QsOaL"><div></div><div><div class="icon-button_dropdown__e8K_5"><button data-testid="copy-code-block" data-tracking-id="copy-code-block" slot="trigger" aria-label="Copy code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M11 6a1 1 0 1 0 0 2h5v6a1 1 0 1 0 2 0V8a2 2 0 0 0-2-2h-5ZM9 16v-5h4v5H9Zm-2-6a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1H8a1 1 0 0 1-1-1v-7Z" fill="#7B61FF"></path></svg></button></div></div><div><div class="icon-button_dropdown__e8K_5"><button data-testid="expand-code-block" data-tracking-id="expand-code-block" slot="trigger" aria-label="Expand code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M7 3H13V9H11V6.414L6.414 11H9V13H3V7H5V9.586L9.586 5H7V3Z" fill="#7B61FF"></path></svg></button></div></div></div></div></div><div data-testid="code-block" data-language="curl" class="box_m-b-3x__A9ryy box_b-b-l-std__q5XI3 box_b-l-l-std__REGyC box_b-r-l-std__Q4dy4 box_b-r-6__eFn6m code-block_code-block__7vruq code-block_request__DDmE0 dark-mode-theme markdown-code-block_limit-height__WOJUw"><pre tabindex="-1" class="box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 code-block_main__7BHb4"><div data-testid="code-block-contents" data-line-numbers-active="true" style="--line-number-length:1ch" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 code_code__4FNSr highlight_code-highlight___caZ6 highlight_curl__KJRqs code_line-numbers___xHrc"><span data-line-number=""></span>curl https://connect.squareupsandbox.com/v2/locations \ <span data-line-number=""></span> -H <span class="hljs-string">'Square-Version: 2024-07-17'</span> \ <span data-line-number=""></span> -H <span class="hljs-string">'Authorization: Bearer {SANDBOX_ACCESS_TOKEN}'</span> \ <span data-line-number=""></span> -H <span class="hljs-string">'Content-Type: application/json'</span></div></pre><div class="markdown-code-block_bottom-bar___1uwP"><div class="markdown-code-block_bar-position__B59Cr markdown-code-block_footer-action__9cq8l"></div></div></div></li></ul><p>Using the wrong access token for the production or Sandbox environment results in an <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">AUTHENTICATION_ERROR</code> error with the <code class="box_p-l-05x__pvvKi box_p-r-05x__PX6jO box_b-r-4__1LPp7 text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 nodes_inline-code__HksNY">UNAUTHORIZED</code> error code.</p><div data-markdown-heading="3" class="box_m-t-3x__rN_qC box_m-b-2x__nVJGZ"><a href="#using-access-tokens-with-square-sdks" id="using-access-tokens-with-square-sdks" aria-label="anchor link for using-access-tokens-with-square-sdks" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for using-access-tokens-with-square-sdks" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h3 class="heading_base__MS64u heading_heading-20__RIpnh">Using access tokens with Square SDKs</h3></div></div><p>When using a backend Square SDK, the client is initialized with an access token and target environment, as shown in the following PHP SDK snippet:</p><div class="box_m-t-3x__rN_qC code-block_header__urOUF code-block_floating__ocyWk code-block_request__DDmE0 dark-mode-theme"><div></div><div class="box_m-r-1x__uw0iY box_m-t-5x__L06CC"><div class="code-block-action-button-group_button-group__QsOaL"><div></div><div><div class="icon-button_dropdown__e8K_5"><button data-testid="copy-code-block" data-tracking-id="copy-code-block" slot="trigger" aria-label="Copy code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="24" height="24" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M11 6a1 1 0 1 0 0 2h5v6a1 1 0 1 0 2 0V8a2 2 0 0 0-2-2h-5ZM9 16v-5h4v5H9Zm-2-6a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1H8a1 1 0 0 1-1-1v-7Z" fill="#7B61FF"></path></svg></button></div></div><div><div class="icon-button_dropdown__e8K_5"><button data-testid="expand-code-block" data-tracking-id="expand-code-block" slot="trigger" aria-label="Expand code" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 icon-button_icon__Iew7h"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" class="icon_icon-color__dAdSt"><path fill-rule="evenodd" clip-rule="evenodd" d="M7 3H13V9H11V6.414L6.414 11H9V13H3V7H5V9.586L9.586 5H7V3Z" fill="#7B61FF"></path></svg></button></div></div></div></div></div><div data-testid="code-block" data-language="php" class="box_m-b-3x__A9ryy box_b-b-l-std__q5XI3 box_b-l-l-std__REGyC box_b-r-l-std__Q4dy4 box_b-r-6__eFn6m code-block_code-block__7vruq code-block_request__DDmE0 dark-mode-theme markdown-code-block_limit-height__WOJUw"><pre tabindex="-1" class="box_p-l-2x__0A2_9 box_p-r-2x__z29W6 box_p-t-2x__M5RH8 box_p-b-2x__bSkd6 code-block_main__7BHb4"><div data-testid="code-block-contents" data-line-numbers-active="true" style="--line-number-length:1ch" class="text_base__bZ6a4 text_paragraph-20__2lYBq text_code-field___GL_9 code_code__4FNSr highlight_code-highlight___caZ6 code_line-numbers___xHrc"><span data-line-number=""></span><span class="hljs-variable">$client</span> = SquareClientBuilder::init() <span data-line-number=""></span> ->bearerAuthCredentials( <span data-line-number=""></span> BearerAuthCredentialsBuilder::init( <span data-line-number=""></span> <span class="hljs-variable">$_ENV</span>[<span class="hljs-string">'SANDBOX_ACCESS_TOKEN'</span>] <span data-line-number=""></span> ) <span data-line-number=""></span> ) <span data-line-number=""></span> ->environment(Environment::SANDBOX) <span data-line-number=""></span> ->build();</div></pre><div class="markdown-code-block_bottom-bar___1uwP"><div class="markdown-code-block_bar-position__B59Cr markdown-code-block_footer-action__9cq8l"></div></div></div><p>For more information, see the following:</p><ul><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/sdks/java/using-java-sdk" class="nodes_markdown-link__1J6_a">Using the Square Java SDK</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/sdks/dotnet/using-dot-net-sdk" class="nodes_markdown-link__1J6_a">Using the Square .NET SDK</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/sdks/nodejs/using-nodejs-sdk" class="nodes_markdown-link__1J6_a">Using the Square Node.js SDK</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/sdks/php/using-php-sdk" class="nodes_markdown-link__1J6_a">Using the Square PHP SDK</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/sdks/python/using-python-sdk" class="nodes_markdown-link__1J6_a">Using the Square Python SDK</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/sdks/ruby/using-ruby-sdk" class="nodes_markdown-link__1J6_a">Using the Square Ruby SDK</a></span></li></ul></article><article data-testid="markdown-doc" class="text_base__bZ6a4 text_paragraph-30___agDz nodes_article__2nMA2"><span class="markdown-anchor_container__0qZni"><a id="whatarecredentials" class="markdown-anchor_anchor__lBAV_"></a></span><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#credential-types" id="credential-types" aria-label="anchor link for credential-types" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for credential-types" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 .486.471c.198.092.446.102.849.035.807-.133 1.657.312 2.034 1.065.161.321.212.538.212.9 0 .361-.05.573-.216.916-.122.254-.131.262-1.778 1.91C9.299 9.471 9.29 9.48 9.036 9.602c-.375.182-.572.223-.988.207-.538-.021-.887-.163-1.303-.533-.259-.23-.453-.312-.741-.313a.971.971 0 0 0-.681.263c-.2.18-.29.382-.304.684-.017.354.065.54.365.829.502.484 1.096.81 1.797.986.424.107 1.137.133 1.589.059.366-.06.832-.209 1.141-.364.549-.276.665-.378 2.46-2.172 1.462-1.462 1.725-1.738 1.886-1.982.483-.732.692-1.417.692-2.269 0-1.11-.398-2.063-1.189-2.844a3.97 3.97 0 0 0-2.019-1.074 4.553 4.553 0 0 0-1.309-.047M6.93 3.694a4.276 4.276 0 0 0-1.955.778c-.103.074-.931.877-1.839 1.786C1.352 8.041 1.242 8.167.959 8.75c-.171.354-.25.583-.336.974-.083.379-.088 1.156-.011 1.518.34 1.59 1.458 2.767 2.996 3.155.256.065.401.081.835.093 1.025.028 1.494-.153 1.731-.666a.786.786 0 0 0 .082-.411.753.753 0 0 0-.098-.426 1.004 1.004 0 0 0-.482-.476c-.157-.077-.462-.089-.897-.036-.628.078-1.179-.115-1.645-.575a1.563 1.563 0 0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">Credential types</h2></div></div><p>The following table lists the access tokens and other credentials used for Square development. Credential use is dependent on your development scenario.</p><div class="box_m-t-5x__L06CC box_m-b-5x__RvXTy table_outer__9zV2D"><div data-testid="table" class="table_container__Ze6L1"><table class="table_table__wDx_x"><thead><tr><th style="width:120px" class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Credential </th><th class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Type</th><th class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Description</th><th class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Use</th><th class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-std__q5XI3 text_base__bZ6a4 text_paragraph-20__2lYBq text_medium-20__UlBGy table_left__1NzD_">Obtained from</th></tr></thead><tbody><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Application ID</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Identification</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Random, unique ID assigned by Square</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Identifies your application in select Square API and SDK calls against the production environment. Also called a client ID.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>Credentials</strong> application page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">OAuth access token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authorization</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Scoped access token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Grants seller-scoped and limited access to production resources in a Square account by asking an authenticated user for explicit permissions.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Programmatically using the <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/overview" class="nodes_markdown-link__1J6_a">OAuth API</a></span></td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">OAuth refresh token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authorization</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Special-purpose token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Used to obtain a new access token when the current one expires.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Programmatically using the <span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/overview" class="nodes_markdown-link__1J6_a">OAuth API</a></span></td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Application secret</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authentication</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">OAuth authentication credential</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Verifies the identity of your application in OAuth API requests to get or refresh an OAuth access token. Also called a client secret.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>OAuth</strong> application page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Personal access token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authorization</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Full-access (unscoped) access token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Grants unrestricted access to production resources in the corresponding Square account. Also called a production access token.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>Credentials</strong> application page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Repository password</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authorization</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Random, unique ID assigned by Square</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Grants your development environment access to the remote repositories that serve Reader SDK binaries</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>Reader SDK</strong> application page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Sandbox application ID</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Identification</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Random, unique ID assigned by Square</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Identifies your application in select Square API and SDK calls against the Sandbox environment. Also called a Sandbox client ID.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>Credentials</strong> application page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Sandbox access token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authorization</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Full-access (unscoped) access token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Grants unrestricted access to Sandbox resources in the corresponding Square account.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>Credentials</strong> application page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Sandbox OAuth access token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authorization</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Scoped access token for a Sandbox account</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Grants scoped access to resources for a Sandbox application/account pair based on a specified set of permissions.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>OAuth</strong> application page or <strong>Sandbox test accounts</strong> page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Sandbox OAuth refresh token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Authorization</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Special-purpose token</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Used to obtain a new access token when the current one expires.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>OAuth</strong> application page</td></tr><tr><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Location ID</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">N/A</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Random, unique ID assigned by Square</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Not a type of credential, but required for many Square API requests.</td><td class="box_p-l-1x__RpeQN box_p-r-1x__PmqSN box_p-t-15x__Jahzv box_p-b-15x__1eVvO box_b-b-l-20__JXIoJ text_base__bZ6a4 text_paragraph-20__2lYBq table_left__1NzD_">Developer Console <strong>Locations</strong> application page or programmatically using the <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/locations-api" class="nodes_markdown-link__1J6_a">Locations API</a></span> or <span slot="trigger"><a data-tracking-id="markdown-link" href="https://developer.squareup.com/reference/square/merchants-api" class="nodes_markdown-link__1J6_a">Merchants API</a></span></td></tr></tbody></table></div></div><div data-markdown-heading="2" class="box_m-t-5x__L06CC box_m-b-2x__nVJGZ"><a href="#see-also" id="see-also" aria-label="anchor link for see-also" class="anchored-heading_anchor__JhuiX"></a><div class="anchored-heading_heading__2wlPu"><div class="anchored-heading_container__rfGXv"><market-tooltip popover-placement="top-start"><a data-tracking-id="heading-anchor" role="link" tabindex="0" slot="trigger" aria-label="click to copy link for see-also" class="box_b-r-6__eFn6m native-button_button__Iabj1 native-button_no-border__LHOho native-button_button-padding__xncbB focus-ring-styles_focus-ring__5P6v0 anchored-heading_trigger__XOE12 anchored-heading_button__TMpy8"><svg width="16" height="16" viewBox="0 0 16 16" class="anchored-heading_icon__4HlYl"><path d="M10.432 1.032c-.641.093-.887.239-1.099.649-.056.109-.07.184-.071.391-.001.229.009.276.097.455a.921.921 0 0 0 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0 1-.354-.495c-.3-.608-.3-1.185-.001-1.799l.14-.285 1.64-1.639c1.567-1.566 1.65-1.644 1.88-1.761.34-.173.568-.228.946-.228.525 0 .954.164 1.36.522.293.257.404.307.714.323.234.012.277.005.442-.069.226-.101.452-.331.533-.54.084-.22.078-.58-.014-.787-.128-.287-.727-.792-1.249-1.053-.64-.319-1.553-.48-2.241-.395" fill-rule="evenodd"></path></svg></a><span slot="content">Link to section</span></market-tooltip></div><h2 class="heading_base__MS64u heading_heading-30__MH4YZ">See also</h2></div></div><ul><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/devtools/developer-dashboard" class="nodes_markdown-link__1J6_a">Developer Console</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/devtools/sandbox/overview" class="nodes_markdown-link__1J6_a">Square Sandbox</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/overview" class="nodes_markdown-link__1J6_a">OAuth API</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/movetoprod" class="nodes_markdown-link__1J6_a">Move OAuth from the Sandbox to Production</a></span></li><li><span slot="trigger"><a data-tracking-id="markdown-link" href="/docs/oauth-api/refresh-revoke-limit-scope" class="nodes_markdown-link__1J6_a">Refresh, Revoke, and Limit the Scope of OAuth Tokens</a></span></li></ul></article></div></div></div><div class="box_m-t-8x__7Ip7V grid-item_grid-item-small__Xb5VI page-layout_sidebar-floating-toc__oeaXi"><div data-testid="ftoc" class="sticky-container_container__FNSI1 floating-toc_docs-floating-toc__UfFM_"><h5 data-testid="docs-heading" class="heading_base__MS64u heading_heading-5__lcRR4">On this page</h5><div data-testid="ftoc-scroll" class="box_m-t-1x__GR9iT box_m-b-1x__b2HHn floating-toc_docs-scrollable-el__7yERK"><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Overview"}" href="/docs/build-basics/access-tokens#overview" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Overview</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Access token types"}" href="/docs/build-basics/access-tokens#access-token-types" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Access token types</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Get a personal access token"}" href="/docs/build-basics/access-tokens#get-a-personal-access-token" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Get a personal access token</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Get an OAuth access token"}" href="/docs/build-basics/access-tokens#get-an-oauth-access-token" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Get an OAuth access token</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Use an access token in your code"}" href="/docs/build-basics/access-tokens#use-an-access-token-in-your-code" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Use an access token in your code</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"Credential types"}" href="/docs/build-basics/access-tokens#credential-types" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">Credential types</a><a data-tracking-id="floating-toc-item" data-tracking-extra="{"title":"See also"}" href="/docs/build-basics/access-tokens#see-also" class="box_m-b-1x__b2HHn text_base__bZ6a4 text_paragraph-20__2lYBq text_color-20__myvq7 sidebar-link_sidebar-link__hvuMG sidebar-link_sidebar-container__NFtV_ floating-toc_docs-item__J_ik3">See also</a></div></div></div><div class="grid-item_grid-item-full__LsU8d"><div data-testid="docs-feedback-prompt" class="box_p-t-8x__SI6nV box_p-b-2x__bSkd6 box_b-t-l-10__Aa_Rv doc-feedback-prompt_container__E7_8O"><div class="box_m-b-2x__nVJGZ"><div class="feedback-widget_large__PmiLi"><div></div></div></div><article data-testid="markdown-doc" class="text_base__bZ6a4 text_paragraph-30___agDz nodes_article__2nMA2"><p>If you need more assistance, contact <span slot="trigger"><a data-tracking-id="markdown-link" 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about the different Square access tokens and how to generate the correct token for your needs.","heading":{"title":"Access Tokens and Other Square Credentials","browserTitle":"Access Tokens and Other Credentials","releaseStatus":"PUBLIC"},"languagesSupported":["All"],"platforms":["All"],"leftNavId":"iO7IcPwigJctqIkoJ11Zo","content":[{"type":"markdown","name":"Build Basics : Access Tokens : token types and get personal","markdown":"{% subheading %}Learn about the different types of access tokens and other credentials used to identify, authenticate, or authorize an application for Square development.{% /subheading %}\n\n{% toc hide=true /%}\n\n## Overview\nAccess tokens are credentials that allow applications to securely interact with Square APIs. An access token authenticates your application and authorizes access to resources (such as customers, orders, and payments) in a Square account. Proper credential management and storage is critical for maintaining security.\n\n## Access token types\nYou must provide a valid access token when using Square APIs to access resources in your own Square account or other Square accounts.\n\nThere are two types of access token: \n\n* **Personal access token** - Provides unrestricted Square API access to resources in a Square account. For example, you can use your own personal access token in Square API calls to perform any activity on any resource in your Square account.\n* **OAuth access token** - Provides authenticated and scoped Square API access to resources in a Square account. Applications use OAuth access tokens in Square API calls to access resources on behalf of account owners. For example, when Square sellers sign up to use an application, they grant the specific permissions (scopes) that the application needs to perform some activity on their account resources.\n\n{% anchor id=\"get-personal-access-token\" /%}\n## Get a personal access token\n\nEach application you create in the Developer Console provides a personal access token for testing in the production environment and a separate Sandbox access token for testing in the [Square Sandbox](devtools/sandbox/overview). These tokens grant full access to the resources in your own Square account.\n\n1. Sign in to the [Developer Console](https://developer.{{SQUARE_DOMAIN}}/apps) and open an application. If needed, follow the steps in [Get Started](get-started) to create a Square account and an application.\n\n2. In the left pane, choose **Credentials**.\n\n3. Get your production or Sandbox access token:\n\n {% tabset %}\n {% tab id=\"Production\" %}\n\n 1. At the top of the page, choose **Production**.\n 2. In the **Production Access token** box, choose **Show** and copy your token. \n\n {% /tab %}\n {% tab id=\"Sandbox\" %}\n\n 1. At the top of the page, choose **Sandbox**.\n 2. In the **Sandbox Access token** box, choose **Show** and copy your token.\n\n Your Sandbox access tokens are also available from the **Default Test Account** user on the **Sandbox test accounts** page in the Developer Console.\n\n {% /tab %}\n {% /tabset %}\n\nThe following animation shows how to copy your Sandbox access token from the **Credentials** page in Sandbox mode.\n\n\n\n{% aside type=\"tip\" %}\nWhen you're signed in to [API Explorer](https://developer.{{SQUARE_DOMAIN}}/explorer/square), the access tokens associated with your account are available in the **Access token** dropdown.\n{% /aside %}\n\nThe following guidelines apply to protecting personal access tokens:\n\n* Don't hardcode access tokens in your code. Consult relevant documentation to find best practices for securely storing credentials, including framework-specific considerations (for example, encrypted credentials for Ruby on Rail) and platform-specific considerations (web or mobile applications). One option might be to use your cloud provider's secrets manager, such as AWS Secrets Manager, Google Cloud Secret Manager, or Azure Key Vault.\n\n* Don't share access tokens. A personal access token can be used to impersonate the account owner and gain full access to account resources. For example, if you paste a cURL code snippet when debugging an issue with Square support or on community forums, make sure to redact the access token used in the `Authorization` header.","programmingLanguage":"All","platform":"All"},{"type":"markdown","name":"Build Basics : Access Tokens : get oauth and use token in code","markdown":"{% anchor id=\"get-oauth-access-token\" /%}\n## Get an OAuth access token\n\nThe process of getting an OAuth access token depends on whether the token is used for an in-production application or for testing in the Square Sandbox during development.\n\n{% tabset %}\n{% tab id=\"Production\" %}\n\nIn-production applications start the OAuth flow by sending each seller to the Square [Authorize](https://developer.{{SQUARE_DOMAIN}}/reference/square/oauth-api/authorize) endpoint. On successful flow completion, Square returns an OAuth access token to your application.\n\nThe OAuth flow includes the following high-level stages:\n\n{% table %}\n* Stage 1: Authorization\n* Stage 2: Callback\n* Stage 3: Token request\n---\n* Using an {% tooltip text=\"authorization URL\" %}A URL to the Authorize endpoint that includes the permissions you're requesting, your application ID, and other parameters.{% /tooltip %}, your application sends the seller to the Square authorization page where they can sign in to Square and grant the permissions you requested.\n* Square redirects the seller to the redirect URL that you registered for your application and includes an authorization code in the `code` query parameter.\n* Your application calls `ObtainToken` and sends the authorization code, your application ID, and other fields. Square returns an OAuth access token and refresh token.\n{% /table %}\n\nStore the OAuth access token and refresh token in a secure storage solution. Don't expose them in client-side code or version control systems. You must refresh OAuth access tokens periodically before they expire. For more information, see [OAuth API](oauth-api/how-it-works) and [OAuth Best Practices](oauth-api/best-practices).\n\n{% /tab %}\n{% tab id=\"Sandbox\" %}\n\nDuring development, before you're ready to add an OAuth flow, you can quickly generate Sandbox OAuth access tokens to try calling Square APIs with a specific set of permissions. This lets you verify that your application can successfully access and manage resources in a Square account and gracefully handle authorization errors.\n\nTo generate a Sandbox OAuth access token:\n1. [Create a Sandbox test account](testing/create-and-authorize-sandbox-account#create-a-sandbox-test-account) in the Developer Console.\n2. [Authorize the Sandbox test account](testing/create-and-authorize-sandbox-account#authorize-a-sandbox-test-account) with the set of permissions you want to test.\n\nYou can get your Sandbox access token later from the **Credentials** page (of your application) or the **Sandbox test accounts** page in the Developer Console. It's also available when you sign in to [API Explorer](https://developer.{{SQUARE_DOMAIN}}/explorer/square).\n\n{% /tab %}\n{% /tabset %}\n\n{% aside type=\"info\" %}\nWhen you're ready to test the code flow in your application, see [OAuth Walkthrough: Test Authorization with a Web Server](oauth-api/build-with-oauth). When your application is ready for production, see [Move OAuth from the Sandbox to Production](oauth-api/movetoprod).\n{% /aside %}\n\n{% anchor id=\"use-access-token\" /%}\n## Use an access token in your code\nAccess tokens are sent as bearer tokens in the `Authorization` header of Square API requests.\n\n\u003c!-- intentional use of curl because language examples don't include the token--\u003e\n\n* Production requests use the `https://connect.squareup.com/v2` base URL with an access token that's valid for the production environment, as shown in the following cURL request:\n\n ```curl\n curl https://connect.squareup.com/v2/locations \\\n -H 'Square-Version: 2024-07-17' \\\n -H 'Authorization: Bearer {PRODUCTION_ACCESS_TOKEN}' \\\n -H 'Content-Type: application/json'\n ```\n\n* Sandbox requests use the `https://connect.squareupsandbox.com/v2` base URL with an access token that's valid for the Sandbox environment, as shown in the following cURL request:\n\n ```curl\n curl https://connect.squareupsandbox.com/v2/locations \\\n -H 'Square-Version: 2024-07-17' \\\n -H 'Authorization: Bearer {SANDBOX_ACCESS_TOKEN}' \\\n -H 'Content-Type: application/json'\n ```\nUsing the wrong access token for the production or Sandbox environment results in an `AUTHENTICATION_ERROR` error with the `UNAUTHORIZED` error code.\n\n### Using access tokens with Square SDKs\nWhen using a backend Square SDK, the client is initialized with an access token and target environment, as shown in the following PHP SDK snippet:\n\n ```php\n $client = SquareClientBuilder::init()\n -\u003ebearerAuthCredentials(\n BearerAuthCredentialsBuilder::init(\n $_ENV['SANDBOX_ACCESS_TOKEN']\n )\n )\n -\u003eenvironment(Environment::SANDBOX)\n -\u003ebuild();\n ```\n\n For more information, see the following:\n\n * [Using the Square Java SDK](sdks/java/using-java-sdk)\n * [Using the Square .NET SDK](sdks/dotnet/using-dot-net-sdk)\n * [Using the Square Node.js SDK](sdks/nodejs/using-nodejs-sdk)\n * [Using the Square PHP SDK](sdks/php/using-php-sdk)\n * [Using the Square Python SDK](sdks/python/using-python-sdk)\n * [Using the Square Ruby SDK](sdks/ruby/using-ruby-sdk)","programmingLanguage":"All","platform":"All"},{"type":"markdown","name":"Build Basics : Access Tokens : Square API Credentials","markdown":"{% anchor id=\"whatarecredentials\" /%}\n## Credential types\n\nThe following table lists the access tokens and other credentials used for Square development. Credential use is dependent on your development scenario.\n\n{% table %}\n* Credential {% width=\"120px\" %}\n* Type\n* Description\n* Use\n* Obtained from\n---\n* Application ID\n* Identification\n* Random, unique ID assigned by Square\n* Identifies your application in select Square API and SDK calls against the production environment. Also called a client ID.\n* Developer Console **Credentials** application page\n---\n* OAuth access token\n* Authorization\n* Scoped access token\n* Grants seller-scoped and limited access to production resources in a Square account by asking an authenticated user for explicit permissions.\n* Programmatically using the [OAuth API](oauth-api/overview)\n---\n* OAuth refresh token\n* Authorization\n* Special-purpose token\n* Used to obtain a new access token when the current one expires.\n* Programmatically using the [OAuth API](oauth-api/overview)\n---\n* Application secret\n* Authentication\n* OAuth authentication credential\n* Verifies the identity of your application in OAuth API requests to get or refresh an OAuth access token. Also called a client secret.\n* Developer Console **OAuth** application page\n---\n* Personal access token\n* Authorization\n* Full-access (unscoped) access token\n* Grants unrestricted access to production resources in the corresponding Square account. Also called a production access token.\n* Developer Console **Credentials** application page\n---\n* Repository password\n* Authorization\n* Random, unique ID assigned by Square\n* Grants your development environment access to the remote repositories that serve Reader SDK binaries\n* Developer Console **Reader SDK** application page\n---\n* Sandbox application ID\n* Identification\n* Random, unique ID assigned by Square\n* Identifies your application in select Square API and SDK calls against the Sandbox environment. Also called a Sandbox client ID.\n* Developer Console **Credentials** application page\n---\n* Sandbox access token\n* Authorization\n* Full-access (unscoped) access token\n* Grants unrestricted access to Sandbox resources in the corresponding Square account.\n* Developer Console **Credentials** application page\n---\n* Sandbox OAuth access token\n* Authorization\n* Scoped access token for a Sandbox account\n* Grants scoped access to resources for a Sandbox application/account pair based on a specified set of permissions.\n* Developer Console **OAuth** application page or **Sandbox test accounts** page\n---\n* Sandbox OAuth refresh token\n* Authorization\n* Special-purpose token\n* Used to obtain a new access token when the current one expires.\n* Developer Console **OAuth** application page\n---\n* Location ID\n* N/A\n* Random, unique ID assigned by Square\n* Not a type of credential, but required for many Square API requests.\n* Developer Console **Locations** application page or programmatically using the [Locations API](https://developer.{{SQUARE_DOMAIN}}/reference/square/locations-api) or [Merchants API](https://developer.{{SQUARE_DOMAIN}}/reference/square/merchants-api)\n{% /table %}\n\n## See also\n\n* [Developer Console](devtools/developer-dashboard)\n* [Square Sandbox](devtools/sandbox/overview)\n* [OAuth API](oauth-api/overview)\n* [Move OAuth from the Sandbox to Production](oauth-api/movetoprod)\n* [Refresh, Revoke, and Limit the Scope of OAuth Tokens](oauth-api/refresh-revoke-limit-scope)","programmingLanguage":"All","platform":"All"}]},"requirementsDomain":null},"navSet":{"value":{"items":[{"type":"link","url":"/","title":"Docs Home"},{"type":"divider","style":"divider"},{"id":"iO7IcPwigJctqIkoJ11Zo","type":"subcategory","items":[{"id":"7dlzvOUwboNqjIqujGxzcq","type":"subcategory","items":[{"type":"link","url":"/get-started/create-account-and-application","title":"Create an Account and 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