Futuras Sign for ChatGPT
ai.futuras/sign
Get PDFs signed: prepare, send and track e-signature requests, then fetch the signed copy.
client:ChatGPT
transport:streamable-http
Install Futuras Sign in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.futuras.ai/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs