codebook mcp for ChatGPT

io.github.nexus-api-lab/codebook-mcp

Exact reference codes for AI agents: countries, currencies with minor units, HTTP status, MIME.

client:ChatGPT transport:streamable-http

Install codebook mcp in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://codebook-mcp.dokasukadon.workers.dev/mcp

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