perf mcp for Claude Code

io.github.perf-ai/perf-mcp

Fact-check and fix AI outputs. Hallucination detection, schema validation, auto-repair.

client:Claude Code transport:stdio runtime:npm

Install perf mcp in Claude Code

run in your project directory

claude mcp add perf-mcp -e PERF_API_KEY=<PERF_API_KEY> -- npx -y perf-mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs