Unified checkout
One link or widget accepts every coin and card. Customers choose; you get paid.
The internet runs on open protocols for everything except money. U.CASH fixes that: non-custodial rails any app or agent can build on, with pay, swap, buy, convert, and names on one shared network across 30+ chains.
The U.CASH payments rail: 30+ blockchains and custom tokens across 22 networks, fiat cards via Stripe, white-label and non-custodial. Accept, request, invoice, and even pay out cash for crypto in person. Live in minutes, no held funds.
One link or widget accepts every coin and card. Customers choose; you get paid.
Connect xpubs and per-chain wallets. Funds settle directly to addresses you control.
Fiat cards through your own Stripe account: fully non-custodial, no middleman.
Your logo, colors, and domain. The payment surface is yours: we're the rails.
REST API, signed webhooks, and SDKs. Build invoicing, splits, and any payment flow.
We never hold your funds. Payments settle straight to your wallets. By design.
Run many stores from one account: each with its own branding, wallets, and webhooks.
Email a Pay-Now link or a full invoice: get paid without a storefront.
Automatic merchant notifications and customer receipts, via your own SMTP.
Converters are retail merchants who use U.CASH Pay to move cash↔crypto for their customers, in person. Through request-info and payment links, a converter takes cash and sends crypto, or takes crypto and pays out cash: a real-world on/off-ramp alongside the digital rails.
Built-in support for Bitcoin, Ethereum, Solana, Tron, and 25+ more, plus any custom token across 22 networks, including 12 newly-added EVM chains: Linea, Mantle, Berachain, Sonic, Unichain, Worldchain, Monad, Plasma, Abstract, HyperEVM, Scroll, and Ink.
Add any token by wallet + contract across 22 networks: ERC-20, BEP-20, Base, Polygon, Arbitrum, Optimism, TRC-20, SPL, and 12 new EVM chains.
You define what "paid" means: set confirmation policies per coin, per store.
Bitcoin HD wallets via xpub, plus Lightning support: generate receive addresses without holding keys.
Pay to ENS, Unstoppable Domains, and FIO handles: no copy-pasting long addresses.
The U.CASH exchange: a non-custodial aggregator routing across 30 chains via multiple connected aggregators. Your wallet signs every swap and we never hold your funds. Plus instant exchange for Bitcoin and 1,500+ coins.
Multiple aggregators scan every DEX, bridge, and exchange for the best price, then execute in a single transaction.
Connect MetaMask, Phantom, or any wallet. Swaps settle on-chain to addresses you control: we never hold your funds.
Permit2-powered: approve once, then every ERC-20 swap is a single signed transaction. No repetitive approvals.
Sell ETH, MATIC, AVAX and more in one transaction via deployed router contracts: no manual wrapping.
Move assets between EVM chains and Solana via LI.FI, routed alongside the swap in one flow.
Bitcoin, Litecoin, XRP, Monero and ~1,500 non-EVM coins via ChangeNOW, for assets DEXs can't reach.
UCASH is a featured token on Ethereum, Polygon, and Base, with live pricing and direct swap routing.
A flat fee on the output: no spreads, no hidden routing cuts. You see exactly what you pay.
We query every connected DEX and bridge for the best output, then execute in a single transaction.
Acquire UCASH on Ethereum, Polygon, or Base from any asset you hold. The buy-UCASH flow is a one-click swap: fast, non-custodial, settled to your wallet.
U.CASH Agents puts AI agents on the HTTP-402 protocol: they sell priced resources and buy services per request, in crypto or via their own Stripe. Multi-item UCP checkout sessions, AP2 mandate authorization, and RFC 9421-signed responses. Non-custodial: every payment flows direct from buyer to seller.
A standard 402 Payment Required tells an agent the price and how to pay. The agent pays, retries, and gets through, automatically.
A standard 402 Payment Required turns any URL into a priced resource. Agents negotiate payment automatically. Protocol spec ↗
One account both earns from its own resources and pays for others' services. Two-sided agent commerce.
BTC, ETH, USDT, USDC, Solana, Tron, XRP, UCASH, and custom tokens: agents pay and earn across them all.
Fiat cards through the agent's own Stripe account: the redirect rail. Non-custodial, no new webhooks.
Official JavaScript and Python packages, plus an MCP server for agent runtimes. Source ↗
Self-serve any ERC-20, BEP-20, Base, Polygon, Arb, OP, Avax, Tron, or SPL token: agents aren't limited to a preset list.
The platform never holds funds. Every payment settles directly from buyer to seller's wallet. By design.
A transparent, read-only log of earnings and settlements: clear accounting without any held balances.
Every resource carries its own price in any asset. Buyers pay per request and sellers earn per call.
Multi-item checkout sessions with mixed-currency carts, AP2 mandates, and RFC 9421-signed responses. The full Universal Commerce Protocol.
Signed, HMAC-verified webhooks notify your integration the instant a payment settles. Retry-safe, tamper-proof.
A machine-readable /.well-known/ucp profile and /catalog.json let AI agents find and pay for your services autonomously.
Expose a /catalog.json + a UCP profile so AI agents discover your resources, create multi-item checkout sessions, and pay via AP2 mandates. Built on the open Universal Commerce Protocol.
One account unlocks every U.CASH app. Set up once, then pay, swap, buy, name, and automate, however you want.
Register once at U.CASH Portal and your single U.CASH account works across pay, swap, buy, names, agents, and verify. No separate logins, ever.
Bring the wallets you already use: Bitcoin xpubs, EVM addresses, Solana, Tron, and more. Funds always settle to addresses you control.
Accept a payment, swap a token, buy UCASH, claim a .u name, or let an agent sell for you. Start anywhere: the rest is one click away.
Six apps, one account. Each lives on its own u.cash subdomain: pick where to start.
Crypto and cards in one white-label, non-custodial checkout. Hundreds of coins across 30+ chains.
Swap between cryptocurrencies directly from your wallet: non-custodial, multi-chain.
Buy UCASH with crypto: the buy-UCASH flow of U.CASH Swap. Fast, non-custodial.
Claim a .u domain (Unstoppable Domains), @u handle (FIO), and other UCASH web3 names.
HTTP 402: let AI agents pay per request, on-chain or via their own Stripe. Non-custodial.
Verify your UCASH balance and email address to unlock benefits and premium features.
U.CASH Pay plugins for WooCommerce, Shopify, Magento, OpenCart, PrestaShop, WHMCS, Shopware, Drupal, CS-Cart, VirtueMart, Blesta, Zen Cart, and Invoice Ninja. Plus a universal embed for any website. Non-custodial.
Your keys, your funds. No U.CASH app ever holds your money: payments settle to wallets you control.
Ethereum, Polygon, Base, Bitcoin, Solana, and more: 30+ chains supported out of the box.
A single U.CASH account works across pay, swap, buy, names, agents, and verify.
Open APIs, open standards (UCP, HTTP 402), and interoperable web3 names. Build on U.CASH without lock-in.
UCASH is the U.CASH network token. Buy it, swap it, hold it, and use it across pay, swap, names, agents, and more.
UCASH lives on Ethereum, Polygon, and Base. Always verify the address before trading.
Sign in to the portal to manage your account, wallets, and bounties: across every U.CASH app.