Signbee MCP Server

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.

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 bob@acme.com from alice@company.com"

`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

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

Get Your API Key

Go to signb.ee
Create an account
Navigate to the Dashboard
Copy your API key

Links

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

License

MIT

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.

No common issues documented yet. If you hit a problem, the repository's GitHub Issues page is the best place to look.