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OpenAPI | Twilio Skip to content Skip to navigation Skip to topbar Twilio Docs OpenAPI Postman Getting Started with Twilio's Postman Collections API Mocking Getting started with OpenAPI and Prism Client Generation Generate a Rust client for Twilio's API Resources The structure of Twilio's OpenAPI Spec Twilio Docs Search Search * Messaging * Voice * Video * Conversations * Flex * Studio * All docs... * Build with AI * SDKs * Help Center Search * Log in * Sign up Page tools Copy as markdown Useful for sharing or LLM Copy and view Copy as markdown View as markdown Open in assistant Open in ChatGPT Open in Claude Open in Cursor Open in Perplexity Build with AI Connect your AI agent Install Twilio Skills Accelerate development with AI On this page * Build with the Twilio OpenAPI Spec Looking for more inspiration? Visit the Developer Hub On this page Build with the Twilio OpenAPI Spec Copy as markdown Copy and view Copy as markdown View as markdown Open in assistant Open in ChatGPT Open in Claude Open in Cursor Open in Perplexity Build with AI Connect your AI agent Install Twilio Skills OpenAPI OpenAPI is an industry-standard format for describing RESTful APIs. Twilio OpenAPI 3.0 specification files allow you to integrate the Twilio API with a wide variety of community tools. They also turn on API mocking and testing, the generation of client libraries, integrations with Postman, and more. Build with the Twilio OpenAPI Spec Get inspired with guides on common use cases to improve your developer experience: * Explore the Twilio API without writing code using Postman Collections * Mock the Twilio API for testing with Prism * Auto-generate a Twilio client in the Rust programming language Need some help? We all do sometimes; code is hard. Get help now from our support team , or lean on the wisdom of the crowd by browsing the Twilio tag on Stack Overflow. Terms of service Privacy Policy Copyright © 2026 Twilio Inc.