Zignature
+
ChatGPT

Sign Documents Directly from ChatGPT

Use ChatGPT to send contracts, track signatures, and manage your entire document workflow — without leaving the chat.

Connect ChatGPT Free → View Setup Guide
ChatGPT Pro/Team/Enterprise Custom GPT Support MCP Ready

Two Ways to Connect

Choose the method that fits your ChatGPT workflow.

Method A

ChatGPT Custom GPT Actions

Create a Custom GPT that talks to Zignature's REST API. Best for web users and team-specific agents.

  • 1
    Create a new Custom GPT in ChatGPT.
  • 2
    Go to "Actions" and select "Import from URL".
  • 3
    Paste: https://zignature.io/docs/openapi.json
  • 4
    Set Auth to "API Key" and Header to X-Auth-Token.
View API Docs
Method B

ChatGPT Desktop + MCP

Connect via the official ChatGPT Desktop app using Model Context Protocol. Instant access to 57 tools.

  • 1
    Open Desktop App → Settings → Features → Enable MCP.
  • 2
    Add Server: https://app.zignature.io/mcp
  • 3
    Auth: Paste API key as header X-Auth-Token.
  • 4
    Done! ChatGPT can now use all 57 Zignature tools.
Get Your API Key

Experience the Workflow

See how a typical conversation with ChatGPT handles your documents.

ChatGPT conversation — Zignature MCP Active
USER
Draft and send an NDA to alice@techcorp.com for a software partnership
GPT

I'll create and send an NDA using Zignature.

Using your "Mutual NDA" template...

✓ Document sent to alice@techcorp.com

She'll receive an email with a secure signing link.

USER
It's been 3 days — has she signed?
GPT

The NDA is still pending. Alice opened it yesterday at 2:14 PM but hasn't signed yet. Want me to send a reminder?

USER
Yes, send a polite reminder
GPT

✓ Reminder sent to alice@techcorp.com

"Hi Alice, just a quick note about the NDA we sent..."

57 Tools. Complete Control.

Everything you can do in our web app, you can now do through ChatGPT.

Templates

List, get, create, update, and clone templates.

Documents

Send, track status, void, and download documents.

Teams

Manage users, invites, and team permissions.

CLM & Contracts

Full lifecycle management for all your contracts.

Deal Desk

Reviews, policies, and analytics for your deals.

Custom GPT Setup Guide

1

Import OpenAPI Spec

In your Custom GPT's configuration, click "Create new action" and paste the following URL into the "Import from URL" field:

https://zignature.io/docs/openapi.json
2

Configure Authentication

Select "API Key" as the authentication type. Choose "Custom" for the header name and use X-Auth-Token.

Get your API key from the Developer Portal.

3

Set System Prompt

Give your GPT clear instructions on how to use Zignature. Example:

"You are an expert contract administrator. Use the Zignature tools to help me send, track, and manage documents. Always verify recipient emails before sending."

Frequently Asked Questions

How do I connect ChatGPT to Zignature?
You can connect ChatGPT to Zignature using two main methods: Custom GPT Actions (using our OpenAPI spec) or the ChatGPT Desktop MCP client. Both allow you to trigger document workflows directly from your chat interface.
Does ChatGPT support MCP for document signing?
Yes, the ChatGPT Desktop app supports the Model Context Protocol (MCP). You can add the Zignature MCP server by enabling the MCP feature in settings and providing your API key.
Can I use Zignature with a Custom GPT?
Absolutely. You can create a Custom GPT and add Zignature's capabilities via 'Actions'. Just import our OpenAPI schema and configure the authentication with your Zignature API key.
What ChatGPT plan do I need?
To use Custom GPTs or MCP features, you typically need a ChatGPT Plus, Team, or Enterprise subscription.
Is this different from using Zapier with ChatGPT?
Yes. While Zapier is great for automation, Zignature's direct MCP and Action integrations provide a deeper, more real-time connection with 57 specialized tools for the entire document lifecycle, allowing for more complex natural language interactions.
What documents can ChatGPT send via Zignature?
ChatGPT can send any document template you have in Zignature, including NDAs, MSAs, SOWs, Offer Letters, and more. It can even help you fill out the fields based on your conversation history.

Start Using Zignature with ChatGPT Today

Get your API key and connect in minutes.

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