Signbee
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Document signing for AI agents
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Michael Beckett•

15h ago

Thread title: The agentic infrastructure stack just got its final piece

Yesterday, Stripe launched the Machine Payments Protocol (MPP) an open standard for AI agents to pay for services autonomously.

That means the full stack for an autonomous sales cycle now exists:

Cal.com agent schedules meetings
AgentMail agent sends and manages email
Signbee agent sends contracts for signing
Stripe MPP agent processes payment

An AI agent can now research a prospect, send outreach, book a call, draft a contract, get it signed, and collect payment without a human clicking a single button.

Michael Beckett•

6h ago

Signbee - Document signing for AI agents

Signbee is document signing built for AI agents. No accounts, no templates, no DocuSign. Tell your agent "Send an NDA to Michael" — Signbee generates the PDF from markdown, runs a two-party signing ceremony, and delivers a SHA-256 certified document to both parties. Three ways to integrate: • MCP Server (Claude, Cursor, Windsurf) • Agent Skill (any framework) • Direct API (one POST call) Free: 5 docs/month. Pro: $9 for 100. Business: $19 unlimited. Give your AI a pen.