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// End Rollbar Snippet </script><title> Twilio Code Exchange | Twilio </title><meta http-equiv="content-type" content="text/html; charset=utf-8"/><meta http-equiv="X-UA-Compatible" content="chrome=1"/><link rel="preconnect" href="https://www.googletagmanager.com"><link rel="preconnect" href="https://s3.amazonaws.com"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#232840"><meta name="heartbeat" content="twilio"/><meta name="format-detection" content="telephone=no"><link rel="canonical" href="https://www.twilio.com/code-exchange"><link rel="alternate" href=https://www.twilio.com/code-exchange hreflang="en-us" /><meta name="thumbnail" content="None" /><meta name="description" content="With Twilio, unite communications and strengthen customer relationships across your business – from marketing and sales to customer service and operations."><meta name="msvalidate.01" content="3D12095F1193FB34A99AEC3A6839D3C1"/><meta 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class="nav-wrapper__left"><div class="nav-wrapper__logo-container"><a href="/" class="nav-wrapper__logo" data-glinktype="site navigation" data-glinklocation="header" data-glinkname="logo">Twilio</a></div></div><div class="nav-wrapper__right"><div class="twiliosearch-quicksearch-box twiliosearch-desktop" data-search-placeholder="Search" data-privacy-warning="Data is collected based on search terms." data-privacy-warning-link-text="Privacy Policy" data-no-results-message="No results" data-something-went-wrong="Something went wrong" data-submit-button-title="Submit" data-clear-button-title="Clear" data-placement="headerBody" data-locale="en" data-search-app-id="ZSUJLF71OK" data-search-key="2b15157d51ab026b3a4b8ced539381a4" ></div><ul class="nav-ctas"><li class="nav-cta"><a href="/help/sales" class="nav-cta__button nav-cta__btn--default" data-glinktype="cta-link" data-glinklocation="global-site-header" data-glinkname="sales-talk-to-an-expert">Contact sales</a></li><li class="nav-cta"><a 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you can build with Twilio. Get started with code samples.</p><form role="search" id="search-form"><div class="height-36 mb-2"><input type="text" name="q" placeholder="Search for a code sample" title="Search for:" class="fs-14 border-0 px-4 py-1 h-100 col-sm-5 mw-600 mw-sm-75 text-truncate align-top fs-sm-12 font-italic" /><button type="submit" id="searchsubmit" class="border-0 align-top height-36 width-36 bg-color-gray"><span class="search-icon-dark square-20 mt-2 d-inline-block cursor-pointer"></span></button></div></form><p class="text-white font-weight-light fs-14 mt-3 mb-5">Examples: Voice IVR, Appointment reminders</p></div></div></div></div><div class="d-none" id="search-error"><div class="text-center w-100 mb-5"><p class="mt-3 mb-2 font-weight-normal">There was an issue loading the page.</p><p class="mb-2 font-weight-normal">Please try again in some time.</p></div></div></div><div class="row justify-content-center"><div class="col-xl-10 col-12 offset-xl-1 offset-0 mw-1300"><div class="row"><div class="col-xl-10"><div class="section-header"><div id="app-list-header"><h4 class="underline-red">Code Samples</h4><p class="mb-xl-3 mb-md-2">Get started with code samples for common Twilio use cases.</p></div></div></div></div><div class="row"><div class="col-12 mb-4"><div id="us-ca-must-register-for-sms-banner"><div class="col"><div class="row bg-white-pink-gradient border-radius-light box-shadow-diffuse"><div class="col-md-2 pink-geo-icon"></div><div class="col-md-10 px-4 px-lg-4 py-lg-4 py-2"><div class="row"><div class="col-lg-9 col-12 mb-lg-0 mb-2 align-self-center pr-0"><div class="fs-13 font-weight-light"> Regulations require that you first <a href="https://www.twilio.com/en-us/guidelines/regulatory" class="text-cerulean underline">register your number</a> to use these resources to send SMS traffic to US and Canadian mobile destinations. </div></div></div></div></div></div></div></div><div class="col-xl-2 col-12"><div class="fs-16 mb-5"><div class="mb-3"><div class="font-weight-semi-bold mr-3 mb-2">Featured</div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-social_impact"><input type="checkbox" class="custom-control-input filter-select" id="filter-social_impact" name="Social Impact" data-slug="social_impact" /><span class="fs-16 ml-2 mr-2 align-middle">Social Impact</span><span class="fs-11 color-white border-radius-light bg-color-pink px-1 py-1 font-weight-light align-middle">NEW</span></label></div></div><div class="mb-3"><div class="font-weight-semi-bold mr-3 mb-2">Hosting Support</div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-serverless"><input type="checkbox" class="custom-control-input filter-select" id="filter-serverless" name="Serverless" data-slug="serverless" /><span class="fs-16 ml-2">Quick Deploy</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-heroku"><input type="checkbox" class="custom-control-input filter-select" id="filter-heroku" name="Heroku" data-slug="heroku" /><span class="fs-16 ml-2">Heroku</span></label></div></div><div class="mb-3"><div class="font-weight-semi-bold mr-3 mb-2">Product</div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-sms"><input type="checkbox" class="custom-control-input filter-select" id="filter-sms" name="SMS" data-slug="sms" /><span class="fs-16 ml-2">SMS</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-voice"><input type="checkbox" class="custom-control-input filter-select" id="filter-voice" name="Voice" data-slug="voice" /><span class="fs-16 ml-2">Voice</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-email"><input type="checkbox" class="custom-control-input filter-select" id="filter-email" name="Email" data-slug="email" /><span class="fs-16 ml-2">Email</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-video"><input type="checkbox" class="custom-control-input filter-select" id="filter-video" name="Video" data-slug="video" /><span class="fs-16 ml-2">Video</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-whatsapp"><input type="checkbox" class="custom-control-input filter-select" id="filter-whatsapp" name="WhatsApp" data-slug="whatsapp" /><span class="fs-16 ml-2">WhatsApp</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-conversations"><input type="checkbox" class="custom-control-input filter-select" id="filter-conversations" name="Conversations" data-slug="conversations" /><span class="fs-16 ml-2">Conversations</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-flex"><input type="checkbox" class="custom-control-input filter-select" id="filter-flex" name="Flex" data-slug="flex" /><span class="fs-16 ml-2">Flex</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-verify"><input type="checkbox" class="custom-control-input filter-select" id="filter-verify" name="Verify" data-slug="verify" /><span class="fs-16 ml-2">Verify</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-chat"><input type="checkbox" class="custom-control-input filter-select" id="filter-chat" name="Chat" data-slug="chat" /><span class="fs-16 ml-2">Chat</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-runtime"><input type="checkbox" class="custom-control-input filter-select" id="filter-runtime" name="Runtime" data-slug="runtime" /><span class="fs-16 ml-2">Runtime</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-sync"><input type="checkbox" class="custom-control-input filter-select" id="filter-sync" name="Sync" data-slug="sync" /><span class="fs-16 ml-2">Sync</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-studio"><input type="checkbox" class="custom-control-input filter-select" id="filter-studio" name="Studio" data-slug="studio" /><span class="fs-16 ml-2">Studio</span></label></div></div><div class="mb-3"><div class="font-weight-semi-bold mr-3 mb-2">Language</div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-php"><input type="checkbox" class="custom-control-input filter-select" id="filter-php" name="PHP" data-slug="php" /><span class="fs-16 ml-2">PHP</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-python"><input type="checkbox" class="custom-control-input filter-select" id="filter-python" name="Python" data-slug="python" /><span class="fs-16 ml-2">Python</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-javascript"><input type="checkbox" class="custom-control-input filter-select" id="filter-javascript" name="JavaScript" data-slug="javascript" /><span class="fs-16 ml-2">JavaScript</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-dotnet"><input type="checkbox" class="custom-control-input filter-select" id="filter-dotnet" name=".NET" data-slug="dotnet" /><span class="fs-16 ml-2">.NET</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-java"><input type="checkbox" class="custom-control-input filter-select" id="filter-java" name="Java" data-slug="java" /><span class="fs-16 ml-2">Java</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-ruby"><input type="checkbox" class="custom-control-input filter-select" id="filter-ruby" name="Ruby" data-slug="ruby" /><span class="fs-16 ml-2">Ruby</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-swift"><input type="checkbox" class="custom-control-input filter-select" id="filter-swift" name="Swift" data-slug="swift" /><span class="fs-16 ml-2">Swift</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-kotlin"><input type="checkbox" class="custom-control-input filter-select" id="filter-kotlin" name="Kotlin" data-slug="kotlin" /><span class="fs-16 ml-2">Kotlin</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-go"><input type="checkbox" class="custom-control-input filter-select" id="filter-go" name="Go" data-slug="go" /><span class="fs-16 ml-2">Go</span></label></div></div><div class="mb-3"><div class="font-weight-semi-bold mr-3 mb-2">Contributed By</div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-twilio"><input type="checkbox" class="custom-control-input filter-select" id="filter-twilio" name="Twilio" data-slug="twilio" /><span class="fs-16 ml-2">Twilio</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-community"><input type="checkbox" class="custom-control-input filter-select" id="filter-community" name="Community" data-slug="community" /><span class="fs-16 ml-2">Community</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-partner"><input type="checkbox" class="custom-control-input filter-select" id="filter-partner" name="Partner" data-slug="partner" /><span class="fs-16 ml-2">Partner</span></label></div></div><div class="mb-3"><div class="font-weight-semi-bold mr-3 mb-2">Sample Type</div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-building_blocks"><input type="checkbox" class="custom-control-input filter-select" id="filter-building_blocks" name="Building blocks" data-slug="building_blocks" /><span class="fs-16 ml-2">Building blocks</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-applications"><input type="checkbox" class="custom-control-input filter-select" id="filter-applications" name="Applications" data-slug="applications" /><span class="fs-16 ml-2">Applications</span></label></div><div class="d-xl-block d-inline-block mr-3 py-1 text-nowrap"><label class="custom-control-label" for="filter-integrations"><input type="checkbox" class="custom-control-input filter-select" id="filter-integrations" name="Integrations" data-slug="integrations" /><span class="fs-16 ml-2">Integrations</span></label></div></div></div></div><div class="col-xl-10 col-12"><div id="search-banner"><div class="mb-4"></div><div class="mb-4"><h5>Browse samples by type</h5><div class="row"><div class="col-lg-10 col-12"><div class="row justify-content-center justify-content-lg-start mb-lg-2"><div class="col-sm-4 col-auto mb-4 mb-lg-0"><a id="building_blocks-filter" class="cursor-pointer sample-type-select" data-name="Building blocks"><div class="sample-type-filter border-radius-light box-shadow-diffuse"><div class="bg-color-gray px-3 py-2"><span class="square-24 d-inline-block logo-24 logo-building_blocks align-middle mr-3"></span><p class="d-inline-block fs-16 align-middle font-weight-normal color-midnight-lighter">Building blocks</p></div><div class="py-3 pl-3 pr-3 fs-12"><div class="mb-3 font-weight-medium"><p class="fs-12 font-weight-light">Code snippets for basic tasks like sending an SMS or sending an email.</p></div></div></div></a></div><div class="col-sm-4 col-auto mb-4 mb-lg-0"><a id="applications-filter" class="cursor-pointer sample-type-select" data-name="Applications"><div class="sample-type-filter border-radius-light box-shadow-diffuse"><div class="bg-color-blue-lighter px-3 py-2"><span class="square-24 d-inline-block logo-24 logo-applications align-middle mr-3"></span><p class="d-inline-block fs-16 align-middle font-weight-normal color-blue-light">Applications</p></div><div class="py-3 pl-3 pr-3 fs-12"><div class="mb-3 font-weight-medium"><p class="fs-12 font-weight-light">Use cases like appointment reminders that work end to end.</p></div></div></div></a></div><div class="col-sm-4 col-auto mb-4 mb-lg-0"><a id="integrations-filter" class="cursor-pointer sample-type-select" data-name="Integrations"><div class="sample-type-filter border-radius-light box-shadow-diffuse"><div class="bg-color-red-light px-3 py-2"><span class="square-24 d-inline-block logo-24 logo-integrations align-middle mr-3"></span><p class="d-inline-block fs-16 align-middle font-weight-normal color-red-dark">Integrations</p></div><div class="py-3 pl-3 pr-3 fs-12"><div class="mb-3 font-weight-medium"><p class="fs-12 font-weight-light">Integrate with 3rd party applications like Stripe.</p></div></div></div></a></div></div></div></div></div><h5>All samples</h5></div><div><div id="apps"><div class="mb-4"></div><div id="apps-list-loader" class="d-none row justify-content-center my-5"><div class="square-40 rounded-circle border-color-gray border-bolder-solid border-top-color-blue border-top-bold-solid animation-infinite-spin"></div></div><div id="apps-list" ><div class="row justify-content-around justify-content-lg-start mb-4"><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="21809" data-template="SMS Forwarding"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_sms.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">SMS</span></li></ul></div><a id="card-link-21809" class="card-link cursor-pointer" href="/code-exchange/simple-sms-forwarding" title="SMS Forwarding" data-hosting-source="serverless"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">SMS Forwarding</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">This app forwards messages sent to your Twilio phone number to your personal phone</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=popular class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Popular </span></li><li class="col-auto mr-2 mb-3"><span data-slug=serverless class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Quick Deploy </span></li><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="21792" data-template="SMS Auto-response"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_sms.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">SMS</span></li></ul></div><a id="card-link-21792" class="card-link cursor-pointer" href="/code-exchange/basic-sms-auto-response" title="SMS Auto-response" data-hosting-source="serverless"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">SMS Auto-response</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">A simple code sample that responds with "Hello World" to incoming messages</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=popular class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Popular </span></li><li class="col-auto mr-2 mb-3"><span data-slug=serverless class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Quick Deploy </span></li><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="21793" data-template="Voice Auto-response"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_voice.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">Voice</span></li></ul></div><a id="card-link-21793" class="card-link cursor-pointer" href="/code-exchange/basic-voice-auto-response" title="Voice Auto-response" data-hosting-source="serverless"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">Voice Auto-response</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">A simple code sample that responds with "Hello World" to incoming calls</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=popular class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Popular </span></li><li class="col-auto mr-2 mb-3"><span data-slug=serverless class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Quick Deploy </span></li><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="20943" data-template="Send an SMS Message from a Twilio Phone Number"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-midnight-lighter d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_sms.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">SMS</span></li></ul></div><a id="card-link-20943" class="card-link cursor-pointer" href="/code-exchange/send-sms-message-twilio-phone-number" title="Send an SMS Message from a Twilio Phone Number"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-gray color-midnight-lighter"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">Send an SMS Message from a Twilio Phone Number</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">A simple code sample to show how to send an SMS from Twilio phone number</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">PHP</li><li class="d-inline">Java</li><li class="d-inline">Python</li><li class="d-inline">Ruby</li><li class="d-inline">.NET</li><li class="d-inline">JavaScript</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=popular class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Popular </span></li><li class="col-auto mr-2 mb-3"><span data-slug=building_blocks class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Building blocks </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="20198" data-template="One-Time Passcode Verification (OTP)"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_verify.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">Verify</span></li></ul></div><a id="card-link-20198" class="card-link cursor-pointer" href="/code-exchange/one-time-passcode-verification-otp" title="One-Time Passcode Verification (OTP)" data-hosting-source="serverless"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">One-Time Passcode Verification (OTP)</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">Start and check one-time passcodes (OTPs) sent via SMS, Voice, or email. Seamlessly deploy with Twilio's serverless runtime.</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=popular class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Popular </span></li><li class="col-auto mr-2 mb-3"><span data-slug=serverless class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Quick Deploy </span></li><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="19730" data-template="SMS Notifications"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_sms.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">SMS</span></li></ul></div><a id="card-link-19730" class="card-link cursor-pointer" href="/code-exchange/sms-notifications" title="SMS Notifications"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">SMS Notifications</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">Automate notifications using Twilio's REST APIs and SMS. This example app is a vacation rental site, where the host can confirm a reservation automatically via text message.</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li><li class="d-inline">.NET</li><li class="d-inline">PHP</li><li class="d-inline">Python</li><li class="d-inline">Java</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=popular class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Popular </span></li><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="35119" data-template="Verify Passkeys"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_verify.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">Verify</span></li></ul></div><a id="card-link-35119" class="card-link cursor-pointer" href="/code-exchange/verify-passkeys" title="Verify Passkeys" data-hosting-source="serverless"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">Verify Passkeys</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">Add Passkeys into your existing authentication flows with the Verify API's managed passkey backend</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=serverless class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Quick Deploy </span></li><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="35101" data-template="Real-time AI Voice Assistant with OpenAI’s Realtime API"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_voice.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">Voice</span></li></ul></div><a id="card-link-35101" class="card-link cursor-pointer" href="/code-exchange/ai-voice-assistant-openai-realtime-api" title="Real-time AI Voice Assistant with OpenAI’s Realtime API"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">Real-time AI Voice Assistant with OpenAI’s Realtime API</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">Integrate OpenAI's Realtime API with Twilio Voice and call an AI Voice Assistant.</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li><li class="d-inline">Python</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div><div class="col-lg-4 col-auto mb-5"><div class="d-inline-block card border-radius-light box-shadow-diffuse" data-id="35100" data-template="Live Translation with OpenAI’s Realtime API"><div class="py-1"><div class="d-inline-block mr-2"><div class="position-absolute product-icon-circle square-50 rounded-circle bg-color-blue-light d-table-cell align-middle text-center"><img class="position-absolute product-icon square-24" src="/docs/static/code-exchange/img/products/logo_flex.svg"></div></div><ul class="position-absolute product-list fs-12 comma-separated"><li class="d-inline"><span class="fs-12 font-weight-semi-bold">Flex</span></li></ul></div><a id="card-link-35100" class="card-link cursor-pointer" href="/code-exchange/live-translation-openai-realtime-api" title="Live Translation with OpenAI’s Realtime API"><div class="card-header pt-3 pb-2 pl-3 pr-3 bg-color-blue-lighter color-blue-light"><div class="fs-18 mt-2 mb-3 font-weight-medium text-line-clamp-1 overflow-hidden">Live Translation with OpenAI’s Realtime API</div><div class="fs-13 font-weight-light mb-2"><div class="text-line-clamp-2 overflow-hidden mb-2">Integrate AI-powered voice translation into a Twilio Flex contact center using our prebuilt starter app, enabling live conversations between agents and customers speaking different languages.</div></div></div></a><div class="py-3 pl-3 pr-3 fs-12"><ul class="fs-12 comma-separated mb-3 text-line-clamp-1 overflow-hidden font-weight-light"><li class="d-inline">JavaScript</li></ul><ul class="row mb-2 card-labels text-black no-gutters border-bottom"><li class="col-auto mr-2 mb-3"><span data-slug=applications class="label-pill fs-12 border-radius-heavy bg-color-gray-dark px-2 py-1 font-weight-light cursor-pointer hover-gray-dark"> Applications </span></li></ul><div class="mt-1"><span class="square-24 d-inline-block logo-24 logo-twilio align-middle mr-2"></span><p class="d-inline-block align-middle"> By <a target="_blank" class="plain color-midnight-light underline-on-hover" href="http://github.com/twilio">Twilio</a></p></div></div></div></div></div><div id="page-navigation" class="mr-md-3 mb-3 d-flex justify-content-md-end justify-content-center"><ul class="row"><li class="col-auto p-1"><a href="#" class="py-2 px-3 box-shadow-none m-button -ash color-charcoal pointer-events-none" >Previous</a></li><li class="col-auto p-1"><a href="?p=2" class="py-2 px-3 box-shadow-none m-button -blue" >Next</a></li></ul></div></div></div></div></div></div><div class="row"><div class="col-xl-10 col-12 offset-xl-2 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