AuctionTrace for ChatGPT

io.github.vermontforest/auctiontrace

Historical ES Book Pressure data, matched evidence, and evaluation guidance for $5 USDC via x402.

client:ChatGPT transport:streamable-http tools:2

Install AuctionTrace in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.auctiontrace.com/mcp

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