Introducing the new v0 API

Vercel’s generally available v0 API provides programmatic, headless access to its app-building agent, enabling developers to send prompts that generate and modify applications in isolated chat workspaces with live Sandbox previews. Each chat preserves an app’s state across follow-up requests, while v0 can read, edit, run, verify, and fix code in real time; developers can use synchronous, asynchronous, or streaming workflows and display detailed agent activity such as file edits, commands, and tool calls. Apps can be created from prompts, existing repositories, ZIP files, or file sets, embedded through securely proxied preview URLs, customized with MCP tools and saved design-system skills, and deployed to Vercel through the API. The API can also be integrated into external agents through MCP, the AI SDK, or eve, supporting use cases including white-labeled app builders, automated code changes, and agent-driven app generation. Users migrating from the prior API must recreate chats from exported versions and adopt the v2 endpoint, chat-based state model, metadata organization, and message-part rendering.

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