# U.CASH

> Open money infrastructure: a non-custodial network of apps for pay, swap, buy, web3 names, AI agents, verify, and send. One account across every app, 30+ chains.

## Apps
- [U.CASH Pay](https://pay.u.cash): accept crypto + card payments, non-custodial
- [U.CASH Swap](https://swap.u.cash): non-custodial multi-chain exchange
- [U.CASH Buy](https://buy.u.cash): buy UCASH with any token
- [U.CASH Names](https://names.u.cash): web3 .u domains and @u handles
- [U.CASH Agents](https://agents.u.cash): HTTP-402 payments for AI agents
- [U.CASH Verify](https://verify.u.cash): verify UCASH balance and email
- [Portal](https://portal.u.cash): account, wallets, bounties
- [U.CASH Send](https://send.u.cash): mass-send UCASH or any token to many wallets from a CSV

## Key pages
- [Integrations](https://u.cash/integrations): 125+ plugins, SDKs, and integrations
- [UCASH token](https://u.cash/ucash): contracts on Ethereum, Polygon, Base
- [Economy](https://u.cash/economy), [Technology](https://u.cash/technology), [Network](https://u.cash/network)
- [FAQ](https://u.cash/faq), [About](https://u.cash/about), [Status](https://u.cash/status)

## Knowledge base (machine-readable, for AI agents)
- [FAQ (markdown)](https://u.cash/faq.txt): the full U.CASH knowledge base as clean markdown
- [FAQ (structured JSON)](https://u.cash/faq.json): [{q, aliases, a, category, link}] for deterministic ingestion

## Developers
- [Developer hub](https://u.cash/developers): quick start, SDKs across 12 registries, MCP server, API reference
- [awesome-ucash](https://github.com/UdotCASH/awesome-ucash): the full 125+ plugin/SDK catalog
- [402 Online Protocol](https://402.onl): the HTTP-402 spec for agent payments

Non-custodial by design: funds always settle direct to user-controlled wallets.