data commons mcp
https://developers.googleblog.com/en/datacommonsmcp/
https://github.com/datacommonsorg/agent-toolkit/tree/main/packages/datacommons-mcp
basically a mcp wrapper of data commons python api: https://docs.datacommons.org/api/python/v2/
it include heavy prompts.
so api design is actually the key. and then prompt engineering.