HobbyCardIndex Card Prices for ChatGPT

com.hobbycardindex/card-prices

Sold prices for 16 million sports and trading cards, raw and graded, from HobbyCardIndex.

client:ChatGPT transport:streamable-http tools:2

Install HobbyCardIndex Card Prices in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://hobbycardindex.com/api/v1/mcp

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