W3c for ChatGPT

io.github.pipeworx-io/w3c

W3C MCP — web-standards lookup over w3c/browser-specs (GitHub, CF-reachable).

client:ChatGPT transport:streamable-http

Install W3c in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://gateway.pipeworx.io/w3c/mcp

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