Add E-Signatures to Flask

Quick start

1. Get an API key from signb.ee (free, no credit card)
2. Set SIGNBEE_API_KEY in your environment
3. Add the code below to your app

Flask example

from flask import Flask, request, jsonify
import requests

app = Flask(__name__)

@app.route("/send-contract", methods=["POST"])
def send_contract():
    data = request.get_json()
    response = requests.post(
        "https://signb.ee/api/send",
        headers={
            "Authorization": f"Bearer {os.environ['SIGNBEE_API_KEY']}",
            "Content-Type": "application/json",
        },
        json=data,
    )
    return jsonify(response.json())

What happens

1. Your app sends markdown or a PDF URL to Signbee
2. Signbee generates a PDF (if markdown) and emails the recipient a signing link
3. Recipient signs — both parties receive the signed PDF with SHA-256 certificate

Also works with AI agents

Install the MCP server to let Claude, Cursor, or Windsurf send documents directly:

npx -y signbee-mcp