The best e-signature apps that work with ChatGPT, Claude, Gemini and Copilot
Most big e-signature services now plug into AI assistants through MCP, the open standard Claude, ChatGPT, Gemini and Copilot use to reach other apps. They differ a lot in which assistants they support, what the AI is allowed to do and which plan you need. We compared five from each company's own pages as of November 2026. SignMaster is ours.
Updated November 9, 2026 · 3 min read
What to look for
- Your assistant is supported. A connector for ChatGPT doesn't help a team that lives in Copilot.
- Emails wait for a person. An assistant that mishears a name shouldn't be able to send a contract to the wrong customer. Check where the approval happens and whether the e-signature service itself enforces it.
- It can work without a template. Some connectors only send templates you built beforehand; others can start from a file or write a new contract.
- The plan you're on is enough. Several services keep their AI connector for paid or API plans.
Five services compared
| Service | Works with | What the AI can do | Plan needed |
|---|---|---|---|
| SignMaster | Claude, ChatGPT, Gemini CLI, Gemini Enterprise, Copilot Studio, GitHub Copilot in VS Code | Look up envelopes and contacts, draft from templates or PDF links, write new templates with fields, ask to send, remind or void | Every plan, Free included |
| DocuSign | Official connectors for Claude, ChatGPT, Gemini and Copilot, plus Perplexity and Slackbot | Send from templates or uploaded files, track status, run workflows, search agreements | Official connectors need a production (paid) account; tools depend on the plan |
| signNow | Claude, ChatGPT (an app in ChatGPT since March 2026), Cursor, VS Code and automation tools | Send contracts, track status, make signing links, download completed documents | All paid plans |
| BoldSign | Claude, ChatGPT, GitHub Copilot in VS Code | 14 actions: send templates you built in BoldSign, track, remind, cancel, look up contacts and teams | Enterprise API plan for live documents ($30 a month for 40 envelopes) |
| Dropbox Sign | Through Dropbox's MCP server, with setup guides for Claude and ChatGPT | Send a document, see who still has to sign, remind, cancel, search, download signed copies and audit trails | A Dropbox account linked to Dropbox Sign (free Dropbox Basic works) |
SignMaster: approvals enforced by the app, on every plan
SignMaster works with all four big assistants, including Gemini Enterprise and Copilot Studio agents. When the assistant asks to send, remind or void, SignMaster itself holds the request and lists exactly who would get an email; you approve it on the web or in the iPhone app, and an unanswered request expires after 15 minutes. It can also turn a contract the AI writes into a ready-to-send template with a field on every blank, which none of the other four pages describe. The trade-offs: it's the newest name on this list, and the assistant can't send a file you drop into the chat, only templates and PDFs at a web address.
DocuSign: the broadest platform
DocuSign's MCP server is generally available, and its official connectors cover the four big assistants plus Perplexity and Slackbot. It can send uploaded files without a template and reaches into Workflow Builder and CLM for larger companies. DocuSign says assistants like Claude and ChatGPT prompt before actions run, while custom agents must add their own approval step. Official connectors only connect to production accounts, and the tools available depend on your plan. Admins can switch MCP access off per account.
signNow: first into ChatGPT
airSlate SignNow launched an app inside ChatGPT on March 31, 2026, and its MCP server also lists Claude, Cursor, VS Code, n8n and Make. It sends contracts, tracks status, creates signing links and downloads finished documents. Its page says the MCP server is on all paid plans at no extra cost; it doesn't describe an approval step before sending.
BoldSign: for teams that send fixed templates
BoldSign's hosted server gives Claude, ChatGPT and GitHub Copilot 14 actions, and its page stresses that the agent can only send a template you built and approved in BoldSign first. That's a sensible guardrail for repeat paperwork, but it can't start from a new file. Live sending needs the Enterprise API plan at $30 a month, which includes 40 envelopes, then $0.75 an envelope; the API sandbox is free for testing.
Dropbox Sign: if you already use Dropbox
Dropbox Sign works through Dropbox's own MCP server, so your Dropbox and Dropbox Sign accounts need to be linked. It can send a document, chase and cancel requests, and download signed copies with audit trails, and it asks you to confirm sends, reminders and cancellations. Its help page lists what it can't do yet: sending from your account templates, advanced signer fields, signing order and AI-generated templates.
Which one fits
- You're a small business or crew and want it on the free plan: SignMaster.
- You're a large company with workflows and contract management in DocuSign: DocuSign.
- You work mainly in ChatGPT and already pay for signNow: signNow's ChatGPT app.
- You only send the same few contracts and want the AI kept to them: BoldSign.
- Your files already live in Dropbox: Dropbox Sign through the Dropbox connector.
Questions? Answers.
Can ChatGPT or Claude send a document for signature?
Yes, once an e-signature service is connected to it. The assistant prepares the envelope and calls the service, which emails the signers. See how to send a contract from ChatGPT or from Claude.
Is it safe to let an AI send contracts?
It's safest when the e-signature service, not just the chat app, makes a person approve anything that emails a customer, and when the AI only gets the access your role has. Check both before you connect one.
What is MCP?
The Model Context Protocol, an open standard that lets an AI assistant use tools in other apps. Each service on this page runs an MCP server that the assistant connects to.
Do the people signing need the AI app?
No. With every service here, signers get an ordinary email link and sign in their browser.
Sources
- DocuSign: MCP Server general availability · docusign.com
- airSlate SignNow: MCP server · signnow.com
- airSlate SignNow launches native eSignature app in ChatGPT (March 31, 2026) · pr.bendbulletin.com
- BoldSign: send and track eSignature requests from your AI assistant · boldsign.com
- Dropbox help: use Dropbox Sign with the Dropbox MCP remote server · help.dropbox.com