Enable automatic sign-in across apps and websites | Credential Management

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<body class="" template="page" theme="teal" type="article" layout="docs" concierge='closed' display-toc pending> <devsite-progress type="indeterminate" id="app-progress"></devsite-progress> <section class="devsite-wrapper"> <devsite-cookie-notification-bar></devsite-cookie-notification-bar><devsite-header role="banner"> <div class="devsite-header--inner nocontent"> <div class="devsite-top-logo-row-wrapper-wrapper"> <div class="devsite-top-logo-row-wrapper"> <div class="devsite-top-logo-row"> <button type="button" id="devsite-hamburger-menu" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Navigation menu button" visually-hidden aria-label="Open menu"> </button> <div class="devsite-product-name-wrapper"> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> <a href="https://developers.google.com/identity" 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M56.8,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C53.84,33.11,56.8,30.22,56.8,26.12z M87.25,26.12c0,6.64-5.1,11.53-11.36,11.53c-6.26,0-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53C82.15,14.59,87.25,19.43,87.25,26.12zM82.28,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C79.32,33.11,82.28,30.22,82.28,26.12z M112.09,15.29v20.7c0,8.52-5.02,12.01-10.96,12.01c-5.59,0-8.95-3.76-10.22-6.81l4.41-1.83c0.79,1.88,2.71,4.1,5.81,4.1c3.8,0,6.16-2.36,6.16-6.77v-1.66h-0.18c-1.14,1.4-3.32,2.62-6.07,2.62c-5.76,0-11.05-5.02-11.05-11.49c0-6.51,5.28-11.57,11.05-11.57c2.75,0,4.93,1.22,6.07,2.58h0.18v-1.88H112.09z M107.64,26.16c0-4.06-2.71-7.03-6.16-7.03c-3.49,0-6.42,2.97-6.42,7.03c0,4.02,2.93,6.94,6.42,6.94C104.93,33.11,107.64,30.18,107.64,26.16z M120.97,3.06v33.89h-5.07V3.06H120.97z M140.89,29.92l3.93,2.62c-1.27,1.88-4.32,5.11-9.61,5.11c-6.55,0-11.28-5.07-11.28-11.53c0-6.86,4.77-11.53,10.71-11.53c5.98,0,8.91,4.76,9.87,7.34l0.52,1.31l-15.42,6.38c1.18,2.31,3.01,3.49,5.59,3.49C137.79,33.11,139.58,31.84,140.89,29.92zM128.79,25.77l10.31-4.28c-0.57-1.44-2.27-2.45-4.28-2.45C132.24,19.04,128.66,21.31,128.79,25.77z"/> </svg>Identity </a> </li> </ul> </span> </div> <div class="devsite-top-logo-row-middle"> <div class="devsite-header-upper-tabs"> <devsite-tabs class="upper-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Upper tabs"> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/authentication" track-metadata-eventdetail="https://developers.google.com/identity/authentication" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - authentication" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" > Authentication </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Authentication" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/authentication" track-metadata-position="nav - authentication" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Sign In with Google SDKs</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/android-credential-manager" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Credential Manager for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/gsi/web/guides/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/gsi/web/guides/overview" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Sign In with Google for Web (including One Tap) </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/ios/start" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/start" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for iOS and macOS </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Industry standards</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/passkeys" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/passkeys" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Passkeys </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/openid-connect/openid-connect" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/openid-connect/openid-connect" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> OpenID Connect </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Legacy Sign In</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/one-tap/android/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/one-tap/android/overview" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> One Tap sign-up/sign-in for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/android/legacy-start-integrating" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/android/legacy-start-integrating" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/web/sign-in" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/web/sign-in" track-metadata-position="nav - authentication" track-metadata-module="tertiary nav" track-metadata-module_headline="sign in with google sdks" tooltip > <div class="devsite-nav-item-title"> Google Sign-In for Web </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/authorization" track-metadata-eventdetail="https://developers.google.com/identity/authorization" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - authorization" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" > Authorization </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Authorization" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/authorization" track-metadata-position="nav - authorization" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Call Google APIs</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/android/authorize-access" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/android/authorize-access" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for Android </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/oauth2/web/guides/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/oauth2/web/guides/overview" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for Web </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sign-in/ios/api-access" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sign-in/ios/api-access" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Authorizing for iOS/macOS </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/protocols/oauth2" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/protocols/oauth2" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Using OAuth 2.0 </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Share data with Google apps and devices</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/account-linking" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/account-linking" track-metadata-position="nav - authorization" track-metadata-module="tertiary nav" track-metadata-module_headline="call google apis" tooltip > <div class="devsite-nav-item-title"> Google Account Linking </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/credential-management" track-metadata-eventdetail="https://developers.google.com/identity/credential-management" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - credential management" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" > Credential management </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Credential management" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-management" track-metadata-position="nav - credential management" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Android</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/android-credential-manager" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/android-credential-manager" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Credential Manager </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/blockstore/android" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/blockstore/android" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Blockstore </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/smartlock-passwords/android/associate-apps-and-sites" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/smartlock-passwords/android/associate-apps-and-sites" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Digital Asset Links </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developer.android.com/guide/topics/text/autofill" track-type="nav" track-metadata-eventdetail="https://developer.android.com/guide/topics/text/autofill" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Android autofill framework </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/sign-in-form-best-practices/" track-type="nav" track-metadata-eventdetail="https://web.dev/sign-in-form-best-practices/" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Autocomplete </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Cross-platform</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/credential-sharing" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-sharing" track-metadata-position="nav - credential management" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Seamless credential sharing </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown "> <a href="https://developers.google.com/identity/credential-verification" track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" class="devsite-tabs-content gc-analytics-event " track-type="nav" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" > Credential verification </a> <a href="#" role="button" aria-haspopup="true" aria-expanded="false" aria-label="Dropdown menu for Credential verification" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/credential-verification" track-metadata-position="nav - credential verification" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></a> <div class="devsite-tabs-dropdown" aria-label="submenu" hidden> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Android</li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/sms-retriever/overview" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/sms-retriever/overview" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify users by SMS </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/identity/phone-number-hint/android" track-type="nav" track-metadata-eventdetail="https://developers.google.com/identity/phone-number-hint/android" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Phone Number Hint </div> </a> </li> </ul> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-title" role="heading" tooltip>Web</li> <li class="devsite-nav-item"> <a href="https://web.dev/web-otp/" track-type="nav" track-metadata-eventdetail="https://web.dev/web-otp/" track-metadata-position="nav - credential verification" track-metadata-module="tertiary nav" track-metadata-module_headline="android" tooltip > <div class="devsite-nav-item-title"> Verify phone numbers on the web </div> </a> </li> </ul> </div> </div> </div> </tab> </nav> </devsite-tabs> </div> <devsite-search enable-signin enable-search enable-suggestions enable-query-completion project-name="Credential Management" tenant-name="Google for Developers" project-scope="/identity/credential-management" url-scoped="https://developers.google.com/s/results/identity/credential-management" > <form class="devsite-search-form" action="https://developers.google.com/s/results" method="GET"> <div class="devsite-search-container"> <button type="button" search-open class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Open search"></button> <div class="devsite-searchbox"> <input aria-activedescendant="" aria-autocomplete="list" aria-label="Search" aria-expanded="false" aria-haspopup="listbox" autocomplete="off" class="devsite-search-field devsite-search-query" name="q" placeholder="Search" role="combobox" type="text" value="" > <div class="devsite-search-image material-icons" aria-hidden="true"> </div> <div class="devsite-search-shortcut-icon-container" aria-hidden="true"> <kbd class="devsite-search-shortcut-icon">/</kbd> </div> </div> </div> </form> <button type="button" search-close class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Close search"></button> </devsite-search> </div> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es" >Español</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pl" >Polski</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="vi" >Tiếng Việt</a> </li> <li role="presentation"> <a role="menuitem" lang="tr" >Türkçe</a> </li> <li role="presentation"> <a role="menuitem" lang="ru" >Русский</a> </li> <li role="presentation"> <a role="menuitem" lang="he" >עברית</a> </li> <li role="presentation"> <a role="menuitem" lang="ar" >العربيّة</a> </li> <li role="presentation"> <a role="menuitem" lang="fa" >فارسی</a> </li> <li role="presentation"> <a role="menuitem" lang="hi" >हिंदी</a> </li> <li role="presentation"> <a role="menuitem" lang="bn" >বাংলা</a> </li> <li role="presentation"> <a role="menuitem" lang="th" >ภาษาไทย</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_tw" >中文 – 繁體</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> <devsite-user enable-profiles fp-auth id="devsite-user"> <span class="button devsite-top-button" aria-hidden="true" visually-hidden>Sign in</span> </devsite-user> </div> </div> </div> <div class="devsite-collapsible-section devsite-header-no-lower-tabs "> <div class="devsite-header-background"> <div class="devsite-product-id-row" > <div class="devsite-product-description-row"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://developers.google.com/identity/credential-management" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Lower Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Credential Management" > Credential Management </a> </li> </ul> </div> </div> </div> </div> </div> </devsite-header> <devsite-book-nav scrollbars hidden> <div class="devsite-book-nav-filter" hidden> <span class="filter-list-icon material-icons" aria-hidden="true"></span> <input type="text" placeholder="Filter" aria-label="Type to filter" role="searchbox"> <span class="filter-clear-button hidden" data-title="Clear filter" aria-label="Clear filter" role="button" tabindex="0"></span> </div> <nav class="devsite-book-nav devsite-nav nocontent" aria-label="Side menu"> <div class="devsite-mobile-header"> <button type="button" id="devsite-close-nav" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close navigation" aria-label="Close navigation"> </button> <div class="devsite-product-name-wrapper"> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> <a href="https://developers.google.com/identity" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Upper Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Google Identity" > <svg class="devsite-google-wordmark" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 148 48"> <title>Google</title> <path class="devsite-google-wordmark-svg-path" d="M19.58,37.65c-9.87,0-18.17-8.04-18.17-17.91c0-9.87,8.3-17.91,18.17-17.91c5.46,0,9.35,2.14,12.27,4.94l-3.45,3.45c-2.1-1.97-4.93-3.49-8.82-3.49c-7.21,0-12.84,5.81-12.84,13.02c0,7.21,5.64,13.02,12.84,13.02c4.67,0,7.34-1.88,9.04-3.58c1.4-1.4,2.32-3.41,2.66-6.16H19.58v-4.89h16.47c0.18,0.87,0.26,1.92,0.26,3.06c0,3.67-1.01,8.21-4.24,11.44C28.93,35.9,24.91,37.65,19.58,37.65z M61.78,26.12c0,6.64-5.1,11.53-11.36,11.53s-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53S61.78,19.43,61.78,26.12z M56.8,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C53.84,33.11,56.8,30.22,56.8,26.12z M87.25,26.12c0,6.64-5.1,11.53-11.36,11.53c-6.26,0-11.36-4.89-11.36-11.53c0-6.68,5.1-11.53,11.36-11.53C82.15,14.59,87.25,19.43,87.25,26.12zM82.28,26.12c0-4.15-2.96-6.99-6.39-6.99c-3.43,0-6.39,2.84-6.39,6.99c0,4.11,2.96,6.99,6.39,6.99C79.32,33.11,82.28,30.22,82.28,26.12z M112.09,15.29v20.7c0,8.52-5.02,12.01-10.96,12.01c-5.59,0-8.95-3.76-10.22-6.81l4.41-1.83c0.79,1.88,2.71,4.1,5.81,4.1c3.8,0,6.16-2.36,6.16-6.77v-1.66h-0.18c-1.14,1.4-3.32,2.62-6.07,2.62c-5.76,0-11.05-5.02-11.05-11.49c0-6.51,5.28-11.57,11.05-11.57c2.75,0,4.93,1.22,6.07,2.58h0.18v-1.88H112.09z M107.64,26.16c0-4.06-2.71-7.03-6.16-7.03c-3.49,0-6.42,2.97-6.42,7.03c0,4.02,2.93,6.94,6.42,6.94C104.93,33.11,107.64,30.18,107.64,26.16z M120.97,3.06v33.89h-5.07V3.06H120.97z M140.89,29.92l3.93,2.62c-1.27,1.88-4.32,5.11-9.61,5.11c-6.55,0-11.28-5.07-11.28-11.53c0-6.86,4.77-11.53,10.71-11.53c5.98,0,8.91,4.76,9.87,7.34l0.52,1.31l-15.42,6.38c1.18,2.31,3.01,3.49,5.59,3.49C137.79,33.11,139.58,31.84,140.89,29.92zM128.79,25.77l10.31-4.28c-0.57-1.44-2.27-2.45-4.28-2.45C132.24,19.04,128.66,21.31,128.79,25.77z"/> </svg>Identity </a> </li> </ul> </span> </div> </div> <div class="devsite-book-nav-wrapper"> <div class="devsite-mobile-nav-top"> <ul class="devsite-nav-list"> <li class="devsite-nav-item"> <a href="/identity/authentication" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authentication" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authentication </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Authentication" track-name="authentication" > <span class="devsite-nav-text" tooltip menu="Authentication"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Authentication"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/authorization" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorization" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorization </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Authorization" track-name="authorization" > <span class="devsite-nav-text" tooltip menu="Authorization"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Authorization"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-management" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential management" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential management </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Credential management" track-name="credential management" > <span class="devsite-nav-text" tooltip menu="Credential management"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Credential management"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/identity/credential-verification" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential verification" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential verification </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Credential verification" track-name="credential verification" > <span class="devsite-nav-text" tooltip menu="Credential verification"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Credential verification"> </span> </span> </li> </ul> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="Authentication" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Sign In with Google SDKs </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/android-credential-manager" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential Manager for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential Manager for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/gsi/web/guides/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Sign In with Google for Web (including One Tap)" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Sign In with Google for Web (including One Tap) </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/ios/start" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for iOS and macOS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for iOS and macOS </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Industry standards </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/passkeys" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Passkeys" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Passkeys </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/openid-connect/openid-connect" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: OpenID Connect" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > OpenID Connect </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Legacy Sign In </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/one-tap/android/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: One Tap sign-up/sign-in for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > One Tap sign-up/sign-in for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/android/legacy-start-integrating" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/web/sign-in" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Sign-In for Web" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Sign-In for Web </span> </a> </li> </ul> <ul class="devsite-nav-list" menu="Authorization" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Call Google APIs </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/android/authorize-access" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorizing for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorizing for Android </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/oauth2/web/guides/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorizing for Web" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorizing for Web </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/sign-in/ios/api-access" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Authorizing for iOS/macOS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Authorizing for iOS/macOS </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/protocols/oauth2" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Using OAuth 2.0" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Using OAuth 2.0 </span> </a> </li> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Share data with Google apps and devices </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/account-linking" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Account Linking" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Account Linking </span> </a> </li> </ul> <ul class="devsite-nav-list" menu="Credential management" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> <span class="devsite-nav-title" tooltip > <span class="devsite-nav-text" tooltip > Android </span> </span> </li> <li class="devsite-nav-item"> <a href="/identity/android-credential-manager" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Credential Manager" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Credential Manager </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/blockstore/android" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Blockstore" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Blockstore </span> </a> </li> <li class="devsite-nav-item"> <a href="/identity/smartlock-passwords/android/associate-apps-and-sites" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Digital Asset Links" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Digital Asset Links </span> </a> </li> <li 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track-metadata-position="4" track-metadata-eventdetail="Credential Management" > Credential Management </a> </li> </ul> <devsite-thumb-rating position="header"> </devsite-thumb-rating> </div> <devsite-feedback position="header" project-name="Credential Management" product-id="5186570" bucket="Identity guides" context="External devsite feedback" version="t-devsite-webserver-20241114-r00-rc02.464922260396498922" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="header" class="nocontent" project-icon="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/developers/images/touchicon-180-new.png" > <button> Send feedback </button> </devsite-feedback> <h1 class="devsite-page-title" tabindex="-1"> Enable automatic sign-in across apps and websites </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix "> <aside class="deprecated"> <b>Deprecated:</b> Smart Lock for Passwords is deprecated. To ensure the continued security and usability of your app, <a href="https://developer.android.com/training/sign-in/passkeys/">migrate to Credential Manager</a> today. Credential Manager supports passkey, password, and federated identity authentication (such as Sign-in with Google), stronger security, and a more consistent user experience. </aside> <p>If your app that uses Smart Lock for Passwords shares a user database with your website—or if your app and website use federated sign-in providers such as Google Sign-In—you can associate the app with the website so that users save their credentials once and then automatically sign in to both the app and the website.</p> <p>To associate an app with a website, declare associations by hosting a <a href="/digital-asset-links">Digital Asset Links</a> JSON file on your website, and adding a link to the Digital Asset Link file to your app's manifest.</p> <p>By hosting a Digital Asset Links declaration on your website, you also enable your website to share <a href="https://developer.android.com/guide/topics/text/autofill.html">autofill</a> data with your app when running on Android 8.0 and newer.</p> <h2 id="prerequisites" data-text="Prerequisites" tabindex="-1">Prerequisites</h2> <p>Your website's sign-in domain must be available through HTTPS.</p> <h2 id="associate_your_app_with_your_website" data-text="Associate your app with your website" tabindex="-1">Associate your app with your website</h2> <ol> <li><p>Create a <a href="/digital-asset-links">Digital Asset Links</a> JSON file.</p> <p>For example, to declare that the website <code translate="no" dir="ltr">https://signin.example.com</code> and an Android app with the package name <code translate="no" dir="ltr">com.example</code> can share sign-in credentials, create a file named <code translate="no" dir="ltr">assetlinks.json</code> with the following content:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr">[{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "web", "site": "https://signin.example.com" } }, { "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "android_app", "package_name": "com.example", "sha256_cert_fingerprints": [ "F2:52:4D:82:E7:1E:68:AF:8C:BC:EA:B0:A2:83:C8:FE:82:51:CF:63:09:6A:4C:64:AE:F4:43:27:20:40:D2:4B" ] } }] </code></pre> <p>The <code translate="no" dir="ltr">relation</code> field is an array of one or more strings that describe the relationship being declared. To declare that apps and sites share sign-in credentials, specify the string <code translate="no" dir="ltr">delegate_permission/common.get_login_creds</code>.</p> <p>The <code translate="no" dir="ltr">target</code> field is an object that specifies the asset the declaration applies to. The following fields identify a website:</p> <table class="responsive"> <tr> <td><code translate="no" dir="ltr">namespace</code></td> <td><code translate="no" dir="ltr">web</code></td> </tr> <tr> <td><code translate="no" dir="ltr">site</code></td> <td><p>The website's URL, in the format <code translate="no" dir="ltr">https://<var translate="no">domain</var>[:<var translate="no">optional_port</var>]</code>; for example, <code translate="no" dir="ltr">https://www.example.com</code>.</p> <p>The <var translate="no">domain</var> must be fully-qualified., and <var translate="no">optional_port</var> must be omitted when using port 443 for HTTPS.</p> <p>A <code translate="no" dir="ltr">site</code> target can only be a root domain: you cannot limit an app association to a specific subdirectory. Do not include a path in the URL, such as a trailing slash.</p> <p>Subdomains are not considered to match: that is, if you specify the <var translate="no">domain</var> as <code translate="no" dir="ltr">www.example.com</code>, the domain <code translate="no" dir="ltr">www.counter.example.com</code> is not associated with your app. </p> </td> </tr> </table> <p>The following fields identify an Android app:</p> <table class="responsive"> <tr> <td><code translate="no" dir="ltr">namespace</code></td> <td><code translate="no" dir="ltr">android_app</code></td> </tr> <tr> <td><code translate="no" dir="ltr">package_name</code></td> <td>The package name declared in the app's manifest. For example, <code translate="no" dir="ltr">com.example.android</code></td> </tr> <tr> <td><code translate="no" dir="ltr">sha256_cert_fingerprints</code></td> <td>The SHA256 fingerprints of your app’s signing certificate. You can use the following command to generate the fingerprint: <pre translate="no" dir="ltr">$ keytool -list -v -keystore my-release-key.keystore</pre></td> </tr> </table> <p>See the <a href="/digital-asset-links/v1/statements">Digital Asset Links reference</a> for details.</p></li> <li><p>Host the Digital Assets Link JSON file at the following location on the sign-in domain: <pre translate="no" dir="ltr">https://<var translate="no">domain</var>[:<var translate="no">optional_port</var>]/.well-known/assetlinks.json</pre></p> <p>For example, if your sign-in domain is <code translate="no" dir="ltr">signin.example.com</code>, host the JSON file at <code translate="no" dir="ltr">https://signin.example.com/.well-known/assetlinks.json</code>.</p> <p>The MIME type for the Digital Assets Link file needs to be JSON. Make sure the server sends a <code translate="no" dir="ltr">Content-Type: application/json</code> header in the response.</p></li> <li><p>Ensure that your host permits Google to retrieve your Digital Asset Link file. If you have a <code translate="no" dir="ltr">robots.txt</code> file, it must allow the Googlebot agent to retrieve <code translate="no" dir="ltr">/.well-known/assetlinks.json</code>. Most sites can simply allow any automated agent to retrieve files in the <code translate="no" dir="ltr">/.well-known/</code> path so that other services can access the metadata in those files: <pre translate="no" dir="ltr"> User-agent: * Allow: /.well-known/ </pre></p></li> <li><p>Declare the association in the Android app.</p> <ol> <li><p>Add the following line to the manifest file under <code translate="no" dir="ltr"><application></code>:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr"> <meta-data android:name="asset_statements" android:resource="@string/asset_statements" /> </code></pre></li> <li><p>Add an <code translate="no" dir="ltr">asset_statements</code> string resource to the <code translate="no" dir="ltr">strings.xml</code> file. The <code translate="no" dir="ltr">asset_statements</code> string is a JSON object that specifies the <code translate="no" dir="ltr">assetlinks.json</code> files to load. You must escape any apostrophes and quotation marks you use in the string. For example:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr"> <string name="asset_statements" translatable="false"> [{ \"include\": \"https://signin.example.com/.well-known/assetlinks.json\" }] </string> </code></pre><aside class="note"><strong>Note:</strong><span> the <code translate="no" dir="ltr">https://signin.example.com/.well-known/assetlinks.json</code> link must return a 200 HTTP response with a JSON MIME Content-Type header. Returning a 301/302 HTTP redirect or a non-JSON Content-Type will cause verification to fail. The following is an example showing a request and the related response headers.</span></aside><pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr"> > GET /.well-known/assetlinks.json HTTP/1.1 > User-Agent: curl/7.35.0 > Host: signin.example.com < HTTP/1.1 200 OK < Content-Type: application/json </code></pre></li> </ol></li> <li><p>Publish the app to Google Play Store. It needs to be released in the public channel for associations to be picked up.</p></li> <li><p>(Optional) Complete and submit the <a href="https://docs.google.com/forms/d/1UFsC7aMT5IT02PH9Hpbq0vvGJycShlUAKVp8s0QGb9w/viewform" class="gc-analytics-event" data-category="Smart Lock affiliation form link"> Smart Lock for Passwords affiliation form</a> to indicate that you went through the process. Google periodically checks whether affiliations submitted through the form actually work and might contact you in case of problems.</p></li> </ol> <p>When verification has completed, users of your app can save their credentials on either your app or your website and be automatically signed in to both.</p> <aside class="note"><strong>Note:</strong><span> When there are multiple APKs for an app only the statements in the <a href="http://developer.android.com/guide/topics/manifest/manifest-element.html#vcode">newest version</a> of the APK are used to associate apps and websites for sharing stored credentials.</span></aside> <h2 id="example_associate_multiple_apps_with_a_website" data-text="Example: Associate multiple apps with a website" tabindex="-1">Example: Associate multiple apps with a website</h2> <p>You can associate multiple apps with a website by specifying each app in the Digital Assets Link file. For example, to associate the <code translate="no" dir="ltr">com.example</code> and <code translate="no" dir="ltr">com.example.pro</code> apps with the site at <code translate="no" dir="ltr">https://signin.example.com/</code>, specify both apps in the JSON file hosted at <code translate="no" dir="ltr">https://signin.example.com/.well-known/assetlinks.json</code>:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr">[{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "web", "site": "https://signin.example.com" } },{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "android_app", "package_name": "com.example", "sha256_cert_fingerprints": [ "F2:52:4D:82:E7:1E:68:AF:8C:BC:EA:B0:A2:83:C8:FE:82:51:CF:63:09:6A:4C:64:AE:F4:43:27:20:40:D2:4B" ] } },{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "android_app", "package_name": "com.example.pro", "sha256_cert_fingerprints": [ "F2:52:4D:82:E7:1E:68:AF:8C:BC:EA:B0:A2:83:C8:FE:82:51:CF:63:09:6A:4C:64:AE:F4:43:27:20:40:D2:4B" ] } }] </code></pre> <p>Then, declare the association in both apps:</p> <ol> <li><p>Add the following line to the manifest file under <code translate="no" dir="ltr"><application></code>:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr"><meta-data android:name="asset_statements" android:resource="@string/asset_statements" /> </code></pre></li> <li><p>Add the following string resource to the <code translate="no" dir="ltr">strings.xml</code> file:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr"><string name="asset_statements" translatable="false"> [{ \"include\": \"https://signin.example.com/.well-known/assetlinks.json\" }] </string> </code></pre></li> </ol> <h2 id="example_associate_apps_with_multiple_websites" data-text="Example: Associate apps with multiple websites" tabindex="-1">Example: Associate apps with multiple websites</h2> <p>You can associate apps with multiple websites by specifying each website in the Digital Assets Link file and hosting the file on each website. For example, to associate the <code translate="no" dir="ltr">com.example</code> and <code translate="no" dir="ltr">com.example.pro</code> apps with the site at <code translate="no" dir="ltr">https://signin.example.com/</code> and <code translate="no" dir="ltr">https://m.example.com/</code>, specify both apps and both sites in the JSON file hosted at <code translate="no" dir="ltr">https://signin.example.com/.well-known/assetlinks.json</code>:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr">[{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "web", "site": "https://signin.example.com" } },{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "web", "site": "https://m.example.com" }, },{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "android_app", "package_name": "com.example", "sha256_cert_fingerprints": [ "F2:52:4D:82:E7:1E:68:AF:8C:BC:EA:B0:A2:83:C8:FE:82:51:CF:63:09:6A:4C:64:AE:F4:43:27:20:40:D2:4B" ] } },{ "relation": ["delegate_permission/common.get_login_creds"], "target": { "namespace": "android_app", "package_name": "com.example.pro", "sha256_cert_fingerprints": [ "F2:52:4D:82:E7:1E:68:AF:8C:BC:EA:B0:A2:83:C8:FE:82:51:CF:63:09:6A:4C:64:AE:F4:43:27:20:40:D2:4B" ] } }] </code></pre> <p>Then, in the JSON file hosted at <code translate="no" dir="ltr">https://m.example.com/.well-known/assetlinks.json</code>, include the primary Digital Asset Links file:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr">[{ "include": "https://signin.example.com/.well-known/assetlinks.json" }] </code></pre> <p>Finally, declare the association in both apps:</p> <ol> <li><p>Add the following line to the manifest file under <code translate="no" dir="ltr"><application></code>:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr"><meta-data android:name="asset_statements" android:resource="@string/asset_statements" /> </code></pre></li> <li><p>Add the following string resource to the <code translate="no" dir="ltr">strings.xml</code> file:</p> <pre class="prettyprint" translate="no" dir="ltr"><code translate="no" dir="ltr"><string name="asset_statements" translatable="false"> [{ \"include\": \"https://signin.example.com/.well-known/assetlinks.json\" }] </string> </code></pre></li> </ol> </div> <devsite-recommendations display="in-page" hidden yield> </devsite-recommendations> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <devsite-feedback position="footer" project-name="Credential Management" product-id="5186570" bucket="Identity guides" context="External devsite feedback" version="t-devsite-webserver-20241114-r00-rc02.464922260396498922" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="footer" class="nocontent" project-icon="https://www.gstatic.com/devrel-devsite/prod/v870e399c64f7c43c99a3043db4b3a74327bb93d0914e84a0c3dba90bbfd67625/developers/images/touchicon-180-new.png" > <button> Send feedback </button> </devsite-feedback> <devsite-recommendations id="recommendations-link" yield></devsite-recommendations> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Except as otherwise noted, the content of this page is licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 License</a>, and code samples are licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache 2.0 License</a>. 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