ground for ChatGPT

fyi.ground/ground

Reference data API for classification systems, real-time world data, and unit conversions

client:ChatGPT transport:streamable-http

Install ground in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://mcp.ground.fyi/mcp

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