WebMCP support now available in mcp-handler
Vercel's changelog carries an entry titled "WebMCP support now available in mcp-handler," published on September 18, 2026. The entry states that WebMCP support is now available in mcp-handler, the handler package associated with Vercel. No version number, release tag, or package version is given in the provided source text, and no code sample, API surface, or configuration option is described. The provided source text is limited to the changelog title and page scaffolding; it does not explain what WebMCP support entails inside mcp-handler, how it is enabled, or whether it changes existing behavior for current users of the package. Because the excerpt is thin, the only verifiable claims are that the support exists as of the changelog entry and that it applies to mcp-handler. Any statement about migration steps, compatibility, performance, or downstream effects would go beyond what the source says. Developers tracking Vercel's MCP tooling can note the changelog entry itself as the record of the addition, dated September 18, 2026.
Developers using Vercel's mcp-handler package can now see WebMCP listed as supported in the changelog, dated September 18, 2026.