mcp-multiplexer
mcp-multiplexer is an MCP server, listed under version control. It reaches github. It needs API_TOKEN and GITHUB_TOKEN to authenticate. Its repository has 2 GitHub stars and is licensed under MIT; we last read it on 2026-10-22.
Serves as a single MCP server for multiple tools, providing list_servers, list_tools, search_tools, describe_tool, call_tool, refresh_tools, and authorize_server functionalities. Supports lazy schema discovery and governance through allow/deny rules and OAuth 2.1 brokering. Compatible with Claude Code, Cursor, Zed, and any MCP client.
Install
MCP servers are packaged differently from each other -- some run via npx, some as a Docker image, some as a plain script you clone and run. mcp-multiplexer’s own README did not state one plainly enough for this page to quote it rather than guess, so it will not guess. The repository below states it.
What it reaches, and what it needs
What it connects to
Unverified means a mention in the server’s own description, not a citation. A wrong claim here costs nothing to correct and nothing to trust yet.
Maintenance
One MCP server fronting many: list_servers, list_tools, search_tools, describe_tool, call_tool, refresh_tools, authorize_server. Lazy schema discovery slashes context-token costs. Allow/deny governance, OAuth 2.1 brokering, expose mode. Works with Claude Code, Cursor, Zed, any MCP client.
mcp-multiplexer compared with similar servers
| Server | Reaches | Needs | Stars | Last update | Licence |
|---|---|---|---|---|---|
| mcp-multiplexer (this page) | github | API_TOKEN, GITHUB_TOKEN | 2 | 2026-10-20 | MIT |
| mcp-proxy | github(1 shared) | API_ACCESS_TOKEN, GITHUB_PERSONAL_ACCESS_TOKEN | 2,805 | 2026-10-14 | MIT |
| cve-mcp-server | abuseipdb, github, greynoise, nvd, shodan, urlscan, virustotal, vulncheck(1 shared) | ABUSEIPDB_KEY, GITHUB_TOKEN, GREYNOISE_API_KEY, NVD_API_KEY, SHODAN_KEY, URLSCAN_KEY, VIRUSTOTAL_KEY, VULNCHECK_TOKEN | 1,633 | 2026-10-01 | Apache-2.0 |
| idea-reality-mcp | github(1 shared) | GITHUB_TOKEN | 828 | 2026-09-18 | MIT |
| MarkuprPlus | github(1 shared) | GITHUB_TOKEN | 80 | 2026-10-18 | MIT |
| mcp-bridge-api | github, slack(1 shared) | GITHUB_TOKEN, SLACK_BOT_TOKEN | 69 | 2026-09-18 | NOASSERTION |
Ranked by services in common with mcp-multiplexer, then by stars. Figures are from each repository when we last read it.
Common questions about mcp-multiplexer
- What does mcp-multiplexer do?
- Serves as a single MCP server for multiple tools, providing list_servers, list_tools, search_tools, describe_tool, call_tool, refresh_tools, and authorize_server functionalities. Supports lazy schema discovery and governance through allow/deny rules and OAuth 2.1 brokering. Compatible with Claude Code, Cursor, Zed, and any MCP client.
- How do I install mcp-multiplexer?
- Its README did not state an install command plainly enough for us to quote one, so we do not guess. The repository has the instructions: https://github.com/JohGirard/mcp-multiplexer
- What does mcp-multiplexer connect to, and what does it need?
- It reaches github. The credentials we found in its source are API_TOKEN and GITHUB_TOKEN.
- Which AI clients can use mcp-multiplexer?
- Its own description mentions Claude Code, Cursor and Zed. That is a mention in its description, not a test we ran.
- Is mcp-multiplexer official and is it maintained?
- We found nothing naming it as a vendor’s official server. Its repository has 2 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-20.
- What licence does mcp-multiplexer use?
- The repository declares the MIT licence.
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