Vercel opens the v0 app builder up as an API

The new v0 API is generally available. You can use its app-building agent in your own app builder, give a coding agent access to it, or generate apps from scripts and CI jobs.

Each chat has an isolated workspace where v0 can read and edit files, execute code, and run a dev server with an embeddable preview URL. You can start from a Git repo, ZIP archive, or files, then deploy to Vercel through the API.

Chats from the previous v0 API don't carry over automatically. You'll need to download them as ZIPs and recreate them.