Summary
On August 13, 2026, Vercel made the v0 API generally available, letting developers invoke its AI app-building agent programmatically from their own products, scripts, CI pipelines, or other agents. The v2 API (api.v0.dev/v2) supports sync/async/streaming requests, MCP servers and external skills, Vercel Sandbox previews, and direct deploys.
What changed
Vercel released the v0 API (v2) to general availability via the v0 SDK: programmatic prompts to generate and iterate on applications, up to three MCP servers/skills per request, application creation from GitHub repos/ZIPs/file sets, Vercel Sandbox preview URLs with short-lived tokens, and one-call deploys to connected projects.
Why it matters
Turning v0 from a UI into a callable API repositions app generation as embeddable infrastructure that other products and agents can build on, competing for the 'agent that builds software' layer alongside Cursor, Lovable, and Replit.
Evidence excerpt
"Developers can send prompts through the API, have v0 generate and modify application files, run the resulting app in a Vercel Sandbox, and receive a preview URL that can be embedded into their own interfaces."