mcp-proxy

mcp-proxy solves the transport mismatch problem in MCP. Most local MCP servers use stdio transport, but some clients (especially cloud-hosted ones) can only speak HTTP or SSE. mcp-proxy wraps either side: point it at a stdio server and it exposes an HTTP endpoint; point it at a remote HTTP server and it exposes a stdio interface for clients that expect one. It handles the session management, reconnection logic, and request correlation that you would otherwise have to write yourself. For anyone bridging between self-hosted local tooling and a cloud Claude/ChatGPT client, mcp-proxy is usually in the path.