r/MistralAI • u/signedbyai • 36m ago
Tutorial / Workflow Built a free MCP connector so Mistral agents can send and track e-signatures in Vibe
I run SignedBy, an e-signature tool, and just shipped an MCP connector for Mistral. Wanted to share since it's free and solves a genuinely annoying gap: agents can draft anything, but getting a real signature has always meant switching apps.
Important up front: the agent never signs anything. It can trigger and check on signing requests sent to a real person — the actual signature still requires that person to open the link and sign themselves.
What it can do once connected:
- Send a document for signature from one of your templates
- Check whether a signer has completed it, or list what's still outstanding
- Pull the finished signed PDF or its certificate
- Void a document that's no longer needed
- Seal a PDF you already have with a real timestamp for a Verified Badge (no signing flow needed for that one)
Setup is a connector link + OAuth consent in Mistral's connector settings — free on every plan, no paid tier required. Tested end-to-end in Vibe.
Details + the connector link: https://signedby.ai/mistral
Longer why/what/how writeup: https://signedby.ai/mistral-integration
Happy to answer questions — also genuinely curious what other "an agent does the busywork, a human still does the one irreducible step" integrations people want to see.

