GrantCue for ChatGPT
com.grantcue/grantcue
Search public US grants and foundation profiles from IRS filings. Read-only, no sign-in.
client:ChatGPT
transport:streamable-http
tools:4
Install GrantCue in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://www.grantcue.com/api/v1/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs