Find
“Find the lease we sent Maria Lopez in March.”
Searches your documents, templates, Library and contacts, and tells you where each one stands.
Signatura is electronic signature software that connects to the AI app you already use, like Grok, ChatGPT or Claude, so you can find, prepare, send and sign documents by asking in plain words. Signing always needs a one-time code that Signatura emails you.
Grok works on every plan, free included. ChatGPT works on Business, Enterprise and Edu. Claude works on every plan (Claude Free allows one custom connector), and Claude Code on Pro, Max, Team, Enterprise and Console accounts. Gemini and Cursor connect too: the full list is below.
Every Signatura plan, free trial included. You bring your own AI.
Here’s Signatura’s summary before anything is sent: the contractor agreement goes to Jordan Lee, the only signer.
Want me to send it?
Sent. Jordan gets an email and signs from the link, with no account and no AI app needed.
Two documents are waiting:
Want me to remind them?
Done. Priya and Sam each have a reminder.
Yes, Brightline’s supplier terms. I’ve filled in your details with your saved signature, and Signatura has emailed you a 6-digit code with everything that will be signed. Check the email, then tell me the code.
Signed. Everyone has now signed: Signatura will email the completed copy to all parties.
Since Monday:
Want me to open the declined one so you can see the reason?
Your AI works with your real documents, templates, Library and contacts in Signatura. A few things people ask:
“Find the lease we sent Maria Lopez in March.”
Searches your documents, templates, Library and contacts, and tells you where each one stands.
“Turn this Word file into a draft for Alex and Jordan to sign.”
Makes a draft from a template, or from your own file: PDF, Word, PNG or JPEG, up to 25 MB. It can also save a document as a template, or keep it in your Library as a plain file, in the folder you name.
“Send it now, and send the renewal on Monday at 9.”
Checks with you first, showing who it goes to and in what order, then sends now or schedules it for later.
“Sign the supplier terms Brightline sent me.”
Fills in your answers, then asks for the code Signatura emails you. Nothing is signed without it.
“Remind everyone who hasn’t signed the NDA.”
Sends reminders, and voids what you no longer need.
“What changed since Friday? Any dates coming up?”
Sums up what changed, what’s waiting and the key dates.
“Invite sam@yourcompany.com to the team.”
Invites and removes members and changes roles, as far as your own role allows.
No download and no developer account. You paste one address into your AI app.
Each AI app has a place to add a custom connector. In Grok, go to grok.com/connectors, click New Connector, then Custom. The list below says where for the others.
Paste this address, and name it Signatura if your app asks for a name:
https://mcp.getsignatura.com/mcp Signatura opens its own page. Sign in, tick what your AI app may do, and choose whether it can read what’s inside your documents.
On business plans, an admin usually sets it up first: in Grok Business and Enterprise an admin adds the connector, in ChatGPT Business, Enterprise and Edu an admin or owner adds it and publishes it for the workspace, and in Claude Team and Enterprise an owner adds Signatura once, then each member clicks Connect. Everyone still signs in to Signatura as themselves.
When you ask your AI to sign, Signatura emails you a 6-digit code with everything that will be signed: your answers, your signature and the e-sign disclosure. Read it, then give your AI the code. The code works for 10 minutes; five wrong tries lock that signing request, and it has to be prepared again.
Sending doesn’t need the code: Signatura first gives your AI a summary of who the document goes to and tells it to ask you; nothing is sent until your AI asks again with that summary’s confirmation. Reminders and voids run as soon as you ask. That’s why Signatura keeps watch over every connection.
Every connection is yours to shape, watch and cut off.
Each connection starts on a Signatura page, where you sign in and tick what the app may do.
Settings → AI apps lists every connected app and its recent activity. Turn on a daily email for the summary.
Cut off one app, or all of them at once.
Team owners can turn AI apps off for the team or for one member, decide whether AI apps may read document contents, and see and disconnect members’ apps.
Signatura emails you when a connected app sends to a new domain, adds 10 or more new recipients in an hour, or voids or deletes 5 or more documents in an hour.
If a connection’s emails bounce 3 times in a day, or draw a single complaint, its sending pauses.
It can’t change billing, delete your account, or change security or AI settings.
Each AI company decides which of its plans can connect to Signatura, and changes that often.
Every Grok plan, free included. On Business and Enterprise, an admin adds the connector first.
Add it: grok.com/connectors → New Connector → Custom
Business, Enterprise and Edu: an admin or owner adds it under Plugins and publishes it for the workspace. On Pro, OpenAI allows look-ups only. Not on Free or Go.
Add it: chatgpt.com/plugins → + → Add custom MCP server
Every plan. Claude Free allows one custom connector. On Team and Enterprise, an owner adds it, then each member connects.
Add it: Customize → Connectors → + Add → Add custom connector
In the US, 18 or over, with a personal Google account, in English, and with Keep Activity on. Not with a work or school account.
Add it: Settings → Connected Apps → Add a custom app
Cursor’s docs don’t tie it to a plan.
Add it: The Customize page, or a url in mcp.json
Pro, Max, Team, Enterprise or a Console account. Not on Claude Free.
Add it: Uses the connector in your Claude account
Signatura is built to connect with these too.
Plan rules are each AI company’s own and can change. Checked October 26–29, 2026.
No. You connect the AI app you already use. Grok, ChatGPT, Claude, Claude Code, Gemini and Cursor work today, and the list above shows which plans each one allows.
No. Signing needs a 6-digit code that Signatura emails you, together with everything that will be signed. Your AI can sign only once you give it that code.
Signatura first gives your AI a summary of who the document goes to, and in what order, and tells it to show you and ask whether to go ahead. Nothing is sent until your AI asks again with that summary’s confirmation, and if anything changed in between, Signatura gives it a new summary instead. Signatura also emails you about unusual activity, and pauses a connection’s sending if its emails bounce or draw a complaint.
Only if you allow it. When you connect, you choose whether your AI may read what’s inside your documents, and a team owner can turn that off for the whole team.
No. They sign from the email link as always. They don’t need an AI app or a Signatura account.
Every plan, free trial included. If a trial or plan ends, the connection becomes read-only.
In Signatura, open Settings → AI apps. You can disconnect one app, or all of them at once.
Yes. MCP (Model Context Protocol) is the open standard AI apps like Grok, ChatGPT and Claude use to connect to other services. Signatura’s address is https://mcp.getsignatura.com/mcp.
Start a free trial, connect your AI app, and send your first document by asking.
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Grok, ChatGPT, Codex, Claude, Claude Code, Gemini, Cursor and the other AI app names on this page are trademarks of their owners. Signatura is not affiliated with or endorsed by any of them.