REST API for E-Signature & Document Automation

Integrate document signing and management directly into your CRM, ERP, or web application with the Chaindoc REST API. Automate signing flows, receive webhooks on every event, and keep a full blockchain audit trail — without rewriting your existing architecture.


API features

What you can build with the Chaindoc e-signature API

Extend your products with document automation, embedded signing, and real-time webhook notifications.

Document creation automation

Generate contracts, agreements, and other documents from templates and data pulled from your internal systems. Merge fields, conditional logic, and multi-party routing are all configurable via API.

Embedded electronic signature

Add signing directly to your app or website. Users complete the process without leaving your product — no Chaindoc account required on the signer side.

Workflow automation

Configure multi-step signing flows with sequential or parallel signer routing, deadlines, and custom actions at each stage — all defined in the API call.

System integration

The API connects to any system that can make an HTTP call — your CRM, ERP, internal tools, or custom apps. Webhooks push event notifications to whatever endpoint you need.


Why build on the Chaindoc API

Get the API key


Getting started

How to integrate the e-signature API

Three steps to get from signup to your first e-signature API call.

1

Create an account

Sign up or log in to Chaindoc. Your API keys are generated from the Settings → API section. A sandbox key is created automatically — no credit card required to start.

2

Generate an API key

Create an API key from the Settings panel and store it securely. This key authenticates every request your application makes to Chaindoc. Separate keys for sandbox and production are supported.

3

Make your first API call

Use the REST endpoints directly or install one of the SDKs (Node.js, Python, Java, PHP). The documentation covers every endpoint with working code examples, including a complete webhook setup walkthrough.


Chaindoc + Pipedrive

Sign documents and collect e-signatures directly from Pipedrive deals. Contract status syncs back automatically — no switching tabs, no copy-paste.

  • Sign deals and contracts without leaving Pipedrive
  • Automatic document status sync
  • Blockchain-verified signatures

Frequently Asked Questions

Key questions about Chaindoc API integration, authentication, and legal validity.

Start integrating the e-signature API today

Connect the Chaindoc API to your application and automate document creation, signing, and management. First API call in under an hour.

Read useful articles

Tips for secure integration of e-signature APIs

Learn how to properly and securely use electronic signatures through the Chaindoc API to keep your documents legally valid and audit-ready.