Custom MCP Server Support

The v0 API now supports connecting to custom MCP servers, enabling teams to extend v0's capabilities with domain-specific tools and data sources. This opens up new possibilities for AI-assisted development by allowing MCP servers to be provisioned and utilized directly within v0 chat sessions.

How It Works

Creating a custom MCP server is straightforward. Teams can now configure servers programmatically by providing the server name, endpoint URL, and necessary authentication details:

const server = await v0.mcpServers.create({
  name: "Vercel",
  url: "https://mcp.vercel.com",
})

Once configured, these servers become available as references during chat sessions. Developers simply pass the server ID when initiating a chat to make those custom tools accessible to v0:

await v0.chats.create({
  message: "Build a heatmap of my team's Vercel deployments.",
  mcpServerIds: [server.id],
})

Developer Impact

This feature enables teams to integrate internal tools, APIs, and data sources directly into v0's AI-assisted development workflow. Instead of relying only on v0's built-in capabilities, teams can now leverage custom MCP servers to provide AI with access to proprietary systems, monitoring tools, or domain-specific utilities.

For more details and implementation guidance, see the v0 API documentation.