Vercel MCP now supports the 2026-07-28 MCP specification
Vercel MCP upgrades to 2026 spec with zero breaking changes — stateless requests and new auth, but your setup stays the same.
Why it matters
A widely-used AI tool integration (MCP servers) ships a backward-compatible protocol upgrade. Practitioners using Vercel MCP or building MCP clients need to know this exists; no action required, but new capabilities are available.
The key facts
14 to know2026-07-28 MCP specification released
Stateless request model introduced
Updated authorization behavior
Full backward compatibility with 2025 protocol clients
Single endpoint serves both protocol versions via MCP SDK v2 and 2.x
No setup changes required
npx add-mcp https://mcp.vercel.com remains the same command
Vercel MCP supports 2026-07-28 MCP specification
Stateless request model in new spec
Backward compatible with 2025 protocol clients
Single endpoint serves both protocol versions
Official MCP SDK v2.x required
Zero setup change for existing deployments
Automatic protocol detection for new clients
Go to the source
Vercel Blogvercel.com
Publisher excerpt: now supports the 2026-07-28 MCP specification, giving newer clients a stateless request model and updated authorization behavior without any change on the client side.Vercel MCP Clients built for the 2025 protocol keep working exactly as before, and clients that understand the new specification…