Phoenix Number for ChatGPT

io.github.pipeworx-io/phoenix-number

phoenix-number MCP — wraps StupidAPIs (keyless — no credential needed)

client:ChatGPT transport:streamable-http

Install Phoenix Number in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://gateway.pipeworx.io/phoenix-number/mcp

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