The UCASH Economy
2026-09-05How the ecosystem earns, where the revenue goes, and what UCASH the token actually is: the network access and loyalty token of an open-money network that has been live since 2015.
ReadU.CASH papers
The formal canon, written down
Papers is where the network states things carefully: the economy, the technology, the protocols. Every paper is an authored condensate that links its canonical source, so the upstream always wins.
Non-Custodial by Design
2026-09-05How U.CASH settlement works: payment rails that route across 30+ blockchains and settle directly to wallets you control. The network never holds funds or keys.
ReadHTTP 402 and Agent Commerce
2026-09-05The 402 protocol and the UCP discovery profile: how AI agents pay and get paid, per request, over plain HTTP.
ReadVerifying Signed Webhooks
2026-09-05How to verify that a payment event really came from U.CASH Pay: the signature header, the HMAC, and the replay guard. Re-authored from the canonical merchant doc.
ReadThe Written Surface of the Network
2026-09-05A map of where the network writes things down: specifications, references, machine specs, guides and history, each with its canonical home.
ReadLearning, not canon
LibraryGuides, references and archives live one door over, in the library.
Open library