Signbee

Document signing for AI agents — as an MCP tool.

Send, sign, and verify documents with a single tool call. Works with Claude, Cursor, Windsurf, and any MCP-compatible client.

Quick Setup

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "signbee": {
      "command": "npx",
      "args": ["-y", "signbee-mcp"],
      "env": {
        "SIGNBEE_API_KEY": "your-api-key-from-signb.ee/dashboard"
      }
    }
  }
}

Cursor / Windsurf

Add to your MCP settings:

{
  "signbee": {
    "command": "npx",
    "args": ["-y", "signbee-mcp"],
    "env": {
      "SIGNBEE_API_KEY": "your-api-key"
    }
  }
}

Note: The API key is optional. Without it, the sender verifies via email OTP. With it, documents are sent instantly.

Tools

send_document

Send a markdown document for two-party e-signing.

Parameters:

Parameter	Required	Description
markdown	✅	Document content in markdown format
sender_name	✅	Full name of the sender
sender_email	✅	Email address of the sender
recipient_name	✅	Full name of the recipient
recipient_email	✅	Email address of the recipient
title	❌	Document title (auto-extracted from heading)
expires_in_days	❌	Days until signing link expires (default: 7)

Example prompt: "Send an NDA to [email protected] from [email protected]"

send_document_pdf

Send an existing PDF for two-party e-signing.

Parameters:

Parameter	Required	Description
pdf_url	✅	Publicly accessible URL to the PDF
title	✅	Document title
sender_name	✅	Full name of the sender
sender_email	✅	Email address of the sender
recipient_name	✅	Full name of the recipient
recipient_email	✅	Email address of the recipient
expires_in_days	❌	Days until signing link expires (default: 7)

How It Works

1. You ask your AI to send a document for signing
2. The MCP server calls the Signbee API
3. Signbee converts markdown → PDF, handles the signing ceremony
4. Both parties receive a SHA-256 certified signed copy via email

Get Your API Key

1. Go to signb.ee
2. Create an account
3. Navigate to the Dashboard
4. Copy your API key

Links

• Website: signb.ee
• OpenAPI Spec: signb.ee/openapi.json
• llms.txt: signb.ee/llms.txt

License

MIT