ref tools mcp for ChatGPT

tools.ref/ref-tools-mcp

Token-efficient search for coding agents over public and private documentation.

client:ChatGPT transport:streamable-http

Install ref tools mcp in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.ref.tools/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs