Live on Base, trades settle peer-to-peer through escrow
Proof Money

Proof Money Verifier

Current build: v1.0.3

A small browser add-on that proves your payment happened. It reads only the one payment you made, on your own device, and hands Proof Money a cryptographic proof. No passwords, no screenshots, no bank logins shared with anyone.

Add to Chrome, free

Install it in about a minute

  1. 1Click Add to Chrome on the store page.
  2. 2Confirm the permissions prompt.
  3. 3Come back to Proof Money and finish your trade.
Privacy policy

Prefer to install it manually?

You can also load the same build yourself as an unpacked extension. The file you get is proof-money-verifier-1.0.3.zip, and after loading it chrome://extensions will show version 1.0.3.

  1. 1Download the zip below and unzip it.
  2. 2Open chrome://extensions in Chrome, Brave, Edge or Arc.
  3. 3Turn on Developer mode, top right.
  4. 4Click Load unpacked and pick the unzipped folder.

When do I need this?

Install it before you start a trade, or when the app says "Add Proof Money Verifier". The verifier only runs when you are paying a seller on Venmo, Cash App, Zelle, Revolut or Wise. It is not needed for Swap, Send, or for selling crypto.

Runs on your device

Payment data is never uploaded raw.

Reads one thing

Only the payment you are proving.

Open source

Built on the Peer protocol, MIT licensed.