ProofSnap MCP server

Preserve public web pages as signed, timestamped evidence packages from your AI assistant, then verify them, compare versions and monitor pages for changes.

ProofSnap is a hosted remote MCP server. ProofSnap's own servers load the page, not the assistant, and seal a full-page screenshot, the HTML, the page text, metadata and a chain of custody into a signed manifest of SHA-256 hashes with an OpenTimestamps (Bitcoin) proof. On request, an eIDAS qualified timestamp from Disig a.s., a qualified trust service provider on the EU Trusted List, is added.

• Server URL: https://mcp.getproofsnap.com/mcp (Streamable HTTP)

• Sign-in: OAuth 2.1 with PKCE, Client ID Metadata Documents and Dynamic Client Registration

• Documentation and setup for every app: https://getproofsnap.com/api/mcp.html

• Official MCP Registry: com.getproofsnap/proofsnap

A second public server, com.getproofsnap/proofsnap-verify at https://mcp.getproofsnap.com/verify/mcp, needs no sign-in and checks, by the SHA-256 of its manifest.json, whether ProofSnap's API or dashboard issued an evidence package.

This repository holds the connection files for the directories and apps listed below. The server itself is a hosted service; its code is not part of this repository.

What you can do

• Capture one page, or up to 10 pages at once, as evidence

• List, open and verify stored captures

• Quote the sealed page text, with its hash checked against the signed manifest

• Compare two captures of the same page and seal the result as its own package

• Certify a file by its SHA-256 (the file stays on your device)

• Monitor a page at an interval, on a cron or when it changes

• On the Legal plans, create matters, add captures and export a matter as one ZIP with a chain of custody report

Example: "Capture https://example.com as evidence."

The connector cannot delete anything, change billing or API keys, or see your password.

Related MCP server: attest-capture-mcp

What you need

A ProofSnap API account with a confirmed email address, created at https://app.getproofsnap.com/. It is separate from the ProofSnap browser extension. Every new account includes a sandbox of 50 watermarked test captures that are not billed. Live captures count toward your plan; schedules need a paid plan; matters need a Legal plan; an eIDAS timestamp costs $1.99 per stamp. Before a costly request, ProofSnap returns the cost first and runs the request only after you confirm it. Plans: https://getproofsnap.com/api/index.html#pricing

Connect

When you connect, sign in with your ProofSnap account and choose Read only or Read and create.

Step-by-step instructions for each app: https://getproofsnap.com/api/mcp.html

Files in this repository

Support and security

• Support: support@getproofsnap.com

• Security reports: https://getproofsnap.com/.well-known/security.txt

• Privacy policy: https://getproofsnap.com/privacy.html

• Terms: https://getproofsnap.com/terms.html

License

The files in this repository are released under the MIT License. The ProofSnap service is provided under its own terms.