Purple Grain for ChatGPT

com.purplegrain/api

Search and book agricultural contracting services on the Purple Grain marketplace.

client:ChatGPT transport:streamable-http

Install Purple Grain in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.purplegrain.com/mcp

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