SigPen API Documentation

RESTful API for document signing integration

REST
JSON API
99.9%
Uptime SLA
1000/hr
Rate Limit
256-bit
SSL Encryption

API Reference

Quick Links

Get API KeysCode ExamplesGet Support

Authentication

API key authentication for all requests

Authorization: Bearer sk_live_your_api_key

Request Example

curl -H "Authorization: Bearer sk_live_your_api_key" \
  https://api.sigpen.com/v1/documents

Getting Started

1. Get API Keys

Create an API key from your Business plan dashboard

2. Send Document

Upload PDF and add signature fields via API

3. Get Signed PDF

Download completed documents with signatures