The internet runs on open protocols for everything except money. U.CASH fixes that: non-custodial payment rails any business, dev, app or agent can build on, with pay, swap, buy, convert, and names on one shared network across 30+ chains.
Network data as of September 2026. 34 supported networks include Bitcoin's Lightning, Robinhood Chain, and HyperEVM. UCASH is omni-chain across 13 networks: the 11-chain LayerZero mesh plus canonical Base and Polygon. UCASH on Etherscan, Polygonscan, Basescan. Browse 125 integrations.
The U.CASH payments rail: 34 supported networks with custom tokens across 23 token networks, fiat cards, 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 merchant 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.
One set of non-custodial rails, many ways to use it. From a single invoice to a white-label payments platform on your own domain.
Accept crypto and cards at the checkout you already run: official plugins for WooCommerce, Shopify, Magento, BigCommerce, and 20+ more carts, plus a universal embed for any site.
A browser-based POS register for counters and restaurants, and converter tellers moving cash and crypto face to face, in person.
Pay-Now links, full invoices, payment requests, and batch payouts: bill clients and pay teams without a storefront.
A REST API with signed webhooks, SDKs across 12 language registries, and white-label payments on your own domain. Live in minutes.
Monetize agents and priced resources over HTTP 402, or let your agents pay per request in crypto or by card. MCP-ready out of the box.
Memberships, token gating, tips and donations, and link-in-bio checkouts: get paid by your audience, on the channels you already own.
A non-custodial aggregator routing across 30 chains via multiple connected aggregators, plus instant exchange for Bitcoin and 1,500+ coins. Your wallet signs every swap.
Put AI agents on the HTTP-402 protocol: they sell priced resources and buy services per request, in crypto or by card. Non-custodial end to end.
Built-in support for Bitcoin, Ethereum, Solana, Tron, and 30 more, plus any custom token across 23 token networks, including 13 newly-added EVM chains: Linea, Mantle, Berachain, Sonic, Unichain, Worldchain, Monad, Plasma, Abstract, HyperEVM, Scroll, Ink, and Robinhood Chain.
Add any token by wallet + contract across 23 networks: ERC-20, BEP-20, Base, Polygon, Arbitrum, Optimism, TRC-20, SPL, and 13 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.
Browse every coin by intent:
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 every U.CASH app. 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.
28 network apps live, one account. Eighteen featured here, each 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 card or bank on the fiat ramp, or on the UCASH-locked Buy DEX. Payouts go to your own wallet.
Sell BTC, ETH, USDC and more for fiat payouts to your bank, card, or wallet. Non-custodial: you send crypto directly to the provider.
Pay with any token for UCASH at market price, straight to your own wallet. Non-custodial: your wallet signs every swap.
Bridge any token across 18 chains, plus UCASH omni-chain on 13 live networks: canonical Ethereum, Base and Polygon plus the LayerZero mesh. Non-custodial: your wallet signs every move.
HTTP 402: let AI agents pay per request, on-chain or by card. Non-custodial.
Chat to set up and manage Pay, Agents, and POS. Una shows a diff and only acts when you confirm, billed per action in fractions of a cent.
Send UCASH or any token to many wallets from a CSV, in one on-chain batch. Non-custodial.
Verify your UCASH balance and email address to unlock benefits and premium features.
Converter tellers move cash and crypto face to face: request-info and payment links through U.CASH Pay, the teller app to run it, and a live map to find one.
The public U.CASH assistant: ask about crypto security, payments, wallets, and the U.CASH apps. Billed per action in fractions of a cent.
Claim a .u domain (Unstoppable Domains), @u handle (FIO), and other UCASH web3 names.
The live teller map: browse converter tellers, check profiles and live rates, and get there in person.
Spin up a storefront in minutes: product pages, styling blocks, and a built-in U.CASH Pay checkout. No cart plugin, no code.
The U.CASH web desktop: one clean workspace where every network app lives a canvas away.
One storage quota across every U.CASH app: track usage, manage files, and lease more space with UCASH when you need it.
125 open-source plugins, SDKs, and integrations across e-commerce, billing, POS, memberships, automation, chat, and AI agents. Plus a universal embed for any website. Non-custodial: funds settle direct to your wallet.
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, bridge, names, agents, and more.
Open APIs, open standards (UCP, HTTP 402), and interoperable web3 names. Build on U.CASH without lock-in.
A universal embed, a REST API with signed webhooks, SDKs across 12 language registries, an MCP server, and open standards (HTTP 402, UCP). Non-custodial rails for any app or agent.
Zero-dependency clients across JavaScript, Python, Rust, Java, .NET, Elixir, Go, Swift, Ruby, PHP, Flutter, and Deno. One createCheckout + verifyWebhook contract everywhere.
Put agents on the 402 protocol with the agents-u-cash SDK, the mcp-ucash server, and the open UCP standard. Agents sell and buy per request.
Drop in the universal embed script, or call the REST API server-side with HMAC-signed, replay-safe webhooks. Live in minutes.
Sign in to the portal to manage your account, wallets, and bounties: across every U.CASH app.