browser compat mcp server for ChatGPT

io.github.cyanheads/browser-compat-mcp-server

Browser compatibility and Baseline status for any web feature — offline, from bundled MDN data.

client:ChatGPT transport:streamable-http runtime:npm tools:5

Install browser compat mcp server in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://browser-compat.caseyjhand.com/mcp

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