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Using Twilio’s REST API
The Twilio REST API allows you to query and manage meta-data about your account, phone numbers, usage, and access tokens. Learn the basics of working with Twilio’s APIs.
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Twilio Messaging API
The Twilio Messaging API makes it easy to send and receive SMS and MMS messages as well as query meta-data about text messages such as delivery status, associated media, and leverage tools like Copilot to manage your messages globally at scale.
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Twilio Voice API
Twilio's Voice API makes it easy to make, retrieve, control and monitor calls. Using this REST API, you can make outgoing calls, modify calls in progress, and query metadata about calls.
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Twilio Autopilot
Build, train, and deploy AI bots, Conversational IVRs, and Alexa skills using natural language understanding and machine learning.
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Identity and Access Management (IAM)
Manage your Twilio account and learn how to authenticate and secure your Twilio applications.
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TwiML
TwiML is a set of instructions you can use to tell Twilio what to do when you receive an incoming call or SMS.
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Conversations
Twilio Conversations is a single API for scalable, multiparty conversations across channels. Natively support conversations on SMS, MMS, WhatsApp, and chat.
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Programmable Chat
Programmable Chat makes it easy for you to add chat features into your web and native mobile applications without building or scaling a real-time backend.
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Programmable Video
Twilio Video makes it easy for you to add multi-party video calling into your web and native mobile applications quickly.
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Programmable Voice SDKs
Twilio Voice SDKs extend the power of Twilio beyond the traditional telephone network. In the past, the only way to transport audio into and out of Twilio was via PSTN using telephones. With Twilio Voice SDKs you are no longer restricted to building Twilio applications that rely on interacting with traditional telephones. And best of all, your existing applications will already work with Twilio Voice SDKs.
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IoT
Twilio Super SIM and Programmable Wireless let you add cellular data, voice, and SMS capabilities to your connected devices. Our REST APIs ease managing large device fleets, allowing you to control your IoT devices in the way you choose or to build an entirely custom deployment.
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TaskRouter
Twilio TaskRouter is a system for distributing tasks such as phone calls, leads, support tickets, and other work items to the people and processes that can best handle them
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Sync API Reference
Sync offers middleware for real-time two-way state synchronization among browsers and mobiles. Use Sync to drive user presence models, build live-updating dashboards, or implement co-browsing experiences.
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Voice Insights
Voice Insights provides data about call and conference quality in the Console and through a flexible REST API.
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Notify API Reference
Notify provides a high level API for multi-channel notifications over SMS, Apple Push Notifications, Google Cloud Messaging, and Facebook Messenger, with more to come.
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Lookup API
Phone number information and intelligence. Validate phone numbers, detect line type, and prevent fraud with this easy to use API.
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Studio
Twilio Studio is a visual interface to design, deploy, and scale customer communications.
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Serverless
Twilio Serverless is a set of tools to help you build, scale, and operate your serverless applications
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Verify API Reference
Multi-channel managed user verification via SMS, voice, email, WhatsApp, TOTP (authenticator apps), and push authentication.
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Phone Numbers API
With the Phone Numbers APIs, you can search for and buy available Twilio phone numbers, manage your Twilio numbers, port a phone number you own to Twilio, and more.
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Proxy API Reference
Twilio's Proxy API makes it easy to disassociate phone numbers from conversations on your platform across SMS, Voice and other channels.
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Pricing REST API
The Pricing REST resource provides a simple API to pull real time, account-specific pricing for Twilio's voice, messaging and phone number products.
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Twilio Add-Ons
Twilio Add-Ons extend the functionality of Twilio's APIs with third-party services that integrate directly into the Twilio code you're already writing.
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Network Traversal Service
Twilio’s Network Traversal Service is a globally distributed STUN/TURN service that helps you deploy more reliable peer-to-peer communications applications.
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Elastic SIP Trunking
Twilio Elastic SIP Trunking is a cloud-based solution that provides connectivity for IP-based communications infrastructure to connect to the PSTN, for making and receiving telephone calls to the 'rest of the world' via any broadband internet connection.
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Twilio Interconnect
Twilio Interconnect private connections protect your communications with network-level security and can guarantee quality end to end.
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SIP Interface
Connect your SIP endpoints to Twilio and start building voice apps with Twilio’s APIs and application stack. Also, once you’ve connected with Twilio, you can route your calls to any phone, browser, mobile app, or any other SIP endpoint. And best of all, SIP already works with all your existing Twilio apps.
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Monitor REST API
Documentation for alerts and events in the Monitor REST API.
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Enterprise
Twilio Enterprise adds advanced security, user management, and administration features to your Twilio account.
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Debugging Errors
Writing an application on Twilio is easy as pie. But here are a few tips we've found helpful...
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Security and Availability
Twilio supports encryption to protect communications between Twilio and your web application. Just specify an HTTPS url.
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2008 REST and TwiML API
The 2008 version of the Twilio API is deprecated. You can download an archive of the documentation content for that version of the API here. We recommend that you use the latest REST API and TwiML API if at all possible.
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Troubleshooting the REST API
Troubleshooting tips, tools, and common Voice and SMS issues with the REST API