pumpcheck for ChatGPT

com.edgethirteen.www/pumpcheck

Detect npm download-pumping before adding a dependency: real usage vs inflated counter.

client:ChatGPT transport:streamable-http

Install pumpcheck in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://www.edgethirteen.com/api/mcp/pumpcheck

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