MarketCheck API for ChatGPT

com.marketcheck/api

MarketCheck automotive data: search US/UK listings, predict prices, decode VINs, market history.

client:ChatGPT transport:streamable-http tools:9

Install MarketCheck API in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://developers.marketcheck.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