mcpspan gives self-hosted analytics for MCP servers

What the research found

mcpspan is an open-source, self-hosted analytics dashboard for MCP servers, run with docker compose and instrumented via an npm package, keeping data on your own machine.

Claims and how well the evidence supports them

1. Runs locally with git clone and docker compose up -d, dashboard at localhost:6270 99%
2. TypeScript instrumentation via npm install mcpspan and instrument(server, apiKey, endpoint) 80%
3. Parameter values never leave the server process; error messages can be disabled 99%
4. Tracks per-tool latency p95, answer sizes, failures, sessions and release versions 98%

Evidence

• github.com https://github.com/mcpspan/mcpspan

Actionability rated medium.