FreshProof for ChatGPT

io.github.ricksporto/freshproof

Timestamped public URL observations with SHA-256 fingerprints, paid in USDC on Base via x402.

client:ChatGPT transport:streamable-http tools:2

Install FreshProof in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://freshproof.ricardobessellp-11d.workers.dev/mcp

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