Help: MCP server not working?
Step-by-step fixes for each app we test in, based on the official docs and the problems we actually hit.
- Claude Code MCP server not working
- Cursor MCP server not working
- Claude Desktop MCP server not working
- ChatGPT (Codex) MCP server not working
Still stuck? Check the server's own page. Each one shows the result in every client and the copy-paste config we used. Browse MCP servers.