Underpriced AI for ChatGPT

com.underpricedai/underpriced-ai

Resale prices for secondhand items from real eBay sold listings, with comps and a worth-it verdict.

client:ChatGPT transport:streamable-http tools:6

Install Underpriced AI in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://underpricedai.com/api/mcp

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