Issues

• withMcpAuth returns 403 instead of 401 for expired tokens that also lack scopes

  vercel-labs/mcp-handler#181 · Filter by author anshusaurav opened on Aug 4, 2026

• MCP major release 2.0.0 is out

  vercel-labs/mcp-handler#171 · Filter by author icopp opened on Jul 28, 2026

• Add x402 payment example with Bug Bounty Intelligence — MCP + x402 combined

  vercel-labs/mcp-handler#170 · Filter by author holistis opened on Jul 26, 2026

• Add x402 payment example with Intelica — competitive intelligence pay-per-call API

  vercel-labs/mcp-handler#167 · Filter by author teodorofodocrispin-cmyk opened on Jun 25, 2026
  3

• Elicitation functionality missing

  vercel-labs/mcp-handler#159 · Filter by author NightDevilPT opened on May 13, 2026

• MCPSafe deep scan: 3 high-severity findings, score 79/100 — badge available

  vercel-labs/mcp-handler#158 · Filter by author mcpsafe-gh opened on May 12, 2026

• Change sessionIdGenerator's type to accept function

  vercel-labs/mcp-handler#149 · Filter by author endigo opened on Mar 11, 2026

• npm audit reports an issue

  vercel-labs/mcp-handler#146 · Filter by author nicola opened on Feb 21, 2026
  2

• Vercel deploy fails with @modelcontextprotocol/sdk 1.26.0

  vercel-labs/mcp-handler#144 · Filter by author adam-messinger opened on Feb 10, 2026
  1

• Doesn't seem to work with trailingSlash: true

  vercel-labs/mcp-handler#143 · Filter by author sergical opened on Jan 31, 2026

• 🐛 Issue: App Route fails with “No response is returned” only when running inside Docker container

  vercel-labs/mcp-handler#140 · Filter by author mr-kelly opened on Jan 16, 2026
  3

• MCP server in NextJS app crashes API Endpoints with error - No response is returned from route handler

  vercel-labs/mcp-handler#139 · Filter by author akshay-kumardhage-deel opened on Jan 8, 2026
  10

• mcp-api-handler.ts setInterval NOT unref()'ed = process can't exit

  vercel-labs/mcp-handler#129 · Filter by author alxc opened on Dec 16, 2025
  1

• Server is crashing if the client aborts the request before response is sent

  vercel-labs/mcp-handler#128 · Filter by author utkarsh-dixit opened on Dec 10, 2025

• Expose Types

  vercel-labs/mcp-handler#127 · Filter by author ctsstc opened on Dec 9, 2025
  2

• Typesafety missing and local development not working,

  vercel-labs/mcp-handler#122 · Filter by author Abhijit47 opened on Oct 30, 2025
  1

• Error stream is not readable

  vercel-labs/mcp-handler#106 · Filter by author tom-carbontrail opened on Sep 15, 2025
  1

• How to implement server notification

  vercel-labs/mcp-handler#103 · Filter by author xtfocus opened on Sep 4, 2025

• Streamable HTTP also needs a GET/DELETE request for notifications and messages from the server

  vercel-labs/mcp-handler#99 · Filter by author paoloricciuti opened on Aug 19, 2025
  4

• Add Elicitation new standard

  vercel-labs/mcp-handler#64 · Filter by author gregorym opened on Jun 19, 2025
  3