Tango for ChatGPT

dev.tango/tango

MCP access to the U.S. federal procurement graph: contracts, opportunities, entities, and more.

client:ChatGPT transport:streamable-http

Install Tango in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://tango.dev/mcp

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