I Built Docusign for AI Agents — Here's How

AI agents can negotiate deals, draft contracts, manage entire business relationships. But the moment they need someone to actually sign something? The whole flow breaks. DocuSign needs a browser. HelloSign needs OAuth. Adobe Sign needs... well, Adobe Sign. None of them were designed for a world where the sender isn't human. So I built signb.ee — document signing infrastructure built for AI agents. The Problem I was building AI agent workflows and kept hitting the same wall. The agent could: ✅ Draft an NDA based on a conversation ✅ Negotiate terms back and forth ✅ Agree on final language But then what? Copy-paste into DocuSign? Open a browser? That's not how agents work. I needed a single API call that takes markdown (which every LLM outputs natively) and handles the entire signing ceremony — verification, signatures, certificates, delivery. The Solution: One Endpoint curl -X POST https://signb.ee/api/v1/send \ -H "Content-Type: application/json" \ -d '{ "markdown": "# Mutual NDA\n\nTer