McpMux
Run one local MCP gateway so every AI coding client uses the same server list without copy-pasting configs.
Overview
McpMux is a MCP server for the Build phase that exposes a single local gateway so every AI client shares one MCP server configuration.
What is this MCP server?
- Configure MCP servers once and expose them to multiple AI clients through one local gateway
- Reduces duplicated mcp.json / client-specific MCP setup across Claude Code, Cursor, and similar agents
- Published MCP server package com.mcpmux/mcp-mux at version 0.1.1
- Open-source project at github.com/mcpmux/mcp-mux with site mcpmux.com
- MCP integration layer—not a replacement for individual domain MCP servers
- Server schema version field: 0.1.1
- Registry id: com.mcpmux/mcp-mux
- Source repository: github.com/mcpmux/mcp-mux
Community signal: 13 GitHub stars.
What problem does it solve?
Solo builders waste time syncing duplicate MCP server lists and env vars across Claude Code, Cursor, and other agents until something breaks in one client only.
Who is it for?
Indie developers running two or more AI coding clients who want one canonical MCP registry on localhost.
Skip if: Teams that only use a single agent with a static, two-server MCP file and no plans to add more integrations.
What do I get? / Deliverables
After you run McpMux, you add or rotate MCP servers in one place and all connected AI clients see the same tools without manual config copies.
- Single local endpoint wiring multiple MCP servers into connected AI clients
- One maintained server list instead of per-client MCP manifests
- Faster onboarding when you add a new tool server to your agent stack
Recommended MCP Servers
Journey fit
McpMux is the canonical shelf for agent infrastructure: it wires MCP servers into your stack before feature work, but you keep using the same gateway through ship and operate. A local MCP gateway is agent-tooling—one place to register servers so Claude Code, Cursor, and other clients share the same tool surface.
How it compares
Local MCP gateway and config mux—not a domain API server like GitHub or Postgres MCP.
Common Questions / FAQ
Who is McpMux for?
Solo and indie builders who use multiple AI coding clients and want one shared MCP server configuration instead of per-IDE duplicates.
When should I use McpMux?
Use it when you are adding your third MCP server or second AI client and need a single local gateway before deeper build or integration work.
How do I add McpMux to my agent?
Install the com.mcpmux/mcp-mux MCP server from the registry or GitHub repo, run the local gateway per mcpmux.com docs, then point each AI client at that gateway endpoint in its MCP settings.