Signature MCP
Sign PDFs with your AI agent
Only for Mac
Free
Mac
Your AI agent prepares the paperwork, you sign it. Signature MCP opens a window when a document needs your signature. Nothing is signed without you.
Signature MCP lets your AI agent ask you for a signature. When a contract, offer or form needs signing, a window opens on your Mac: you see the document, draw your signature and confirm. Your agent gets the signed PDF back and carries on.
NOTHING IS SIGNED WITHOUT YOU
Every request opens a window that names the AI app, says what it's for and shows the document. You draw the signature each time and click Sign. If you cancel, your agent is told you didn't sign.
SIGN ON THE DOCUMENT
• See the whole PDF: scroll through the pages and pinch to zoom
• Draw your signature on the trackpad without pressing, or with the mouse
• Drag the signature to where it belongs, on any page
• Signature MCP writes it into the PDF, so your agent doesn't have to place anything
• Sign several documents in one window with one signature
FOR YOUR COMPANY
• Add your name, role and company once; they're printed under the signature when you sign for the company
• Add your company stamp from an image; a white background is removed
• Your agent asks for them per document, and you can untick either one each time
DISPOSABLE BY DESIGN
• A signature is drawn fresh for every request and never kept for reuse
• The files your agent receives are deleted after ten minutes, and when the app quits
• Your company stamp stays in the app; your agent only gets a temporary copy after you approve
WORKS WITH ANY AI AGENT
Signature MCP is a Model Context Protocol (MCP) server that lives in your menu bar. Copy the setup prompt, paste it into your AI agent, and it connects itself. For apps that can't change their own settings, ready-made settings for popular AI apps are one click away.
PRIVATE
• The server only listens on your Mac, and requests need your personal access token
• No account, no tracking, no analytics. Signature MCP collects no data
When your AI uses Signature MCP, the signed documents it receives go to your AI app's provider, just like anything else you share with it.
GOOD TO KNOW
A signature drawn in Signature MCP is a simple electronic signature. Some documents need a handwritten or a qualified electronic signature instead, and a company stamp has no legal force of its own. Signature MCP doesn't check who signs and gives no legal advice; check what your document requires.
Requirements: an AI app that supports MCP servers.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• If you remove an older copy of Signature MCP after installing a new one, Signature MCP now reminds you to connect your AI once more.
The developer, Coolplay GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Coolplay GmbH
- Size
- 2 MB
- Category
- Productivity
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 9 more
- English, Dutch, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Coolplay GmbH