14 Aug 2026 [wallets] [services]

KaraZajac releases peer-to-peer proximity commerce protocol 'DUCAT'

KaraZajac1 has announced2 the release of DUCAT3 - a peer-to-peer proximity commerce protocol which uses Veilid4 for transport and Monero for settlement - that can currently be used mainly as a self-custodial stagenet Monero wallet on Android:

I just got back from DEFCON and it got me thinking about Monero and privacy. And it started with, how can I make Monero easier to use, send, work with, etc. I wanted it to be like tap-2-pay, or Venmo/PayPal, so I built DUCAT. [..] while it normally works like Venmo, it also has a robust chat and different modes you can put the app into. Point of Sale, Taxi, Bar Tab, and Donate. Which will more or less do what they say as a way for small businesses to use.

Consult the GitHub repository3 for usage instructions.

Note: this should only be used on stagenet (not with real money).

This is an ongoing story and the report will be updated when new information is available.

  1. https://karazajac.io/ ↩

  2. https://farside.link/libreddit/r/Monero/comments/1vnxq5p/ ↩

  3. https://github.com/karazajac/ducat ↩ ↩2

  4. http://veilid.com/ ↩