proof for ChatGPT

dev.tatastu/proof

Stamp content with permanent, verifiable provenance. Hash locally, verify free forever.

client:ChatGPT transport:streamable-http

Install proof in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://proof.tatastu.dev/mcp

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