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U.CASH is the open-money network: non-custodial pay, swap, buy, names, and agent rails across 30+ chains. It sits under the Ucosystem umbrella alongside U.ONLine, its business-apps complement, and UCASH is the network access and loyalty token running through them all. Revenue from across the Ucosystem feeds the U.CASH economy.
ERC-20 on Ethereum, Polygon, and Base·50+ apps and services·Live since 2018
The Ucosystem is the umbrella over U.CASH, U.ONLine, and a broad network of decentralized and centralized apps, agents, and services. U.CASH is the open-money and payments infrastructure; U.ONLine is the business-apps infrastructure. The two are complementary, UCASH is the network access and loyalty token running through all of it, and revenue from across the Ucosystem flows into the U.CASH economy.
UCASH is the connective token running through every infrastructure and app in the Ucosystem.
Beyond the core U.CASH apps, the Ucosystem runs domain registration, hosting, commerce, AI tooling, verification, and bounty programs. Each one is a real service that real people and businesses use every day.
Accept crypto and cards in one white-label, non-custodial checkout.
Trade across 30 chains non-custodially with a flat 0.30% fee.
Get UCASH at market price in one non-custodial step.
Claim a .u or @u web3 name that resolves to your wallet.
AI agents pay and get paid per request over HTTP-402.
Confirm your balance and email to unlock ecosystem benefits.
Domain names and the domains marketplace at undomains.com.
Domain registry services at unregistry.com.
Domains, hosting, and email at wholesale via unregistrar.com.
B2B and B2C commerce, services, e-commerce, and AI tools.
Earn UCASH through bounties and the builder program.
Verify holdings for premium access, priority support, and discounts.
Retail merchants moving cash and crypto for customers in person.
One account across every app: balances, bounties, and activity.
The Ucosystem earns from a wide mix of businesses and services, business-to-business and business-to-consumer, financial and otherwise, including U.ONLine's business apps and services. A share of all of it supports the U.CASH network, the UCASH token, and the decentralized applications built on top.
Registrations, renewals, registry, hosting, and email across undomains, unregistry, and unregistrar.
pay.u.cash processing across 30+ chains plus fiat cards.
swap.u.cash flat 0.30% fee and instant exchange across 1,500+ coins.
agents.u.cash per-request payments over HTTP-402.
Umerce B2B and B2C plans, AI tools, and marketing.
Invoicing, payouts, cash and crypto conversion, and custom tokens.
.u and @u registrations and web3-name resolution.
Unverification tiers for premium access and discounts.
Revenue from across the Ucosystem is put back to work: maintaining and expanding the rails, funding bounties, growing the ecosystem, and building decentralized applications. UCASH is the network access and loyalty token that ties all of it together.
Rails across 30+ chains, REST APIs, signed webhooks, SDKs, and agent payments.
u.builders pays contributors in UCASH for real work, open to everyone.
Support and grants for dApps and services built on U.CASH.
Keeping UCASH reachable across chains, bridges, and venues.
Part of the revenue from every Ucosystem app, service, business, smart contract, and dApp is used to acquire more UCASH, which funds future bounties, allocations, and ecosystem initiatives.
UCASH is a standard ERC-20 token, deployed in January 2018 as the network access and loyalty token for the U.CASH ecosystem. U.CASH has been active since 2015. Always verify the contract before interacting.
0x92e52a1A235d9A103D970901066CE910AAceFD37
0xA94880d3A4b39746E90Cdb57f8De3732c984DE14
0x26cf750abAf38aF7109Effdbdf79bA50d2EE09A1
Every UCASH token exists on public ledgers, and anyone can inspect who holds what. The largest holdings on Ethereum are not private allocations. They are labeled network functions: bounty-offering reserves that fund ecosystem work, bridge contracts that custody the cross-chain supply, exchange wallets holding user balances, and liquidity venues. The remainder is spread across 318K-plus wallets.
The largest labeled UCASH holdings on Ethereum. Bar lengths are scaled to the largest holding for comparison; the value shown is the true share of total supply.
| # | Label | Address | Quantity | % of supply |
|---|---|---|---|---|
| 1 | UCASH: FBOFuture Bounty Offering | 0x1C1Bf236763e7D65E030b170631b756c4BbEB587 | 3,244,678,441 | 15.45% |
| 2 | UCASH: OBOOngoing Bounty Offering | 0x397C920188aBA66aB0916E7602ce63395ffd583a | 2,815,719,335 | 13.41% |
| 3 | UCASH: BBOBuild Bounty Offering | 0xa250B227c288949cF9Cc76FAF66a5744DC7AcaD3 | 1,816,321,559 | 8.65% |
| 4 | YobitExchange | 0x9d85DEe4d09Eebf1074Baa2600993D6d044a4b2A | 926,592,692 | 4.41% |
| 5 | C2CXExchange | 0xD37aC9c98d4dd1af3EF786A47250E6D1bDBe9332 | 830,046,130 | 3.95% |
| 6 | UCASH: PBOPartner Bounty Offering | 0xE472aD0358b8dEa6bb76F1892254Ca11cBF99ff9 | 765,964,677 | 3.65% |
| 7 | Polygon BridgeCross-chain custody | 0x40ec5B33f54e0E8A33A975908C5BA1c14e5BbbDf | 571,206,213 | 2.72% |
| 8 | Base BridgeCross-chain custody | 0x3154Cf16ccdb4C6d922629664174b904d80F2C35 | 502,150,660 | 2.39% |
| 9 | DEX V3 poolUNITS-UCASH liquidity | 0x04fD448Db703FDa50CF7524C96a597508fD6dd90 | 300,971,752 | 1.43% |
| 10 | UCASH: Bridge PoolsRouting liquidity | 0xbcc91b9b358eab174e2428afdfe91380ed1b68f4 | 188,821,041 | 0.90% |
| 11 | UCASH: LBOLiquidity Bounty Offering | 0xF5cc30b09C3b5c2B204681640689DCFd990eEAbc | 187,256,882 | 0.89% |
| 12 | UCASH: uDistributeRewards distribution | 0x0093e5827900bf9fe3cc635f0d6c68408db1d888 | 52,500,000 | 0.25% |
| 13 | UCASH: Paymentsu--.eth operational | 0x8621d69cB16645BbFd5F37ebe790F625b9056E09 | 42,875,281 | 0.20% |
About 42% of supply sits in five labeled bounty-offering reserves that fund ecosystem work. Some of the balance in these accounts is held on behalf of legacy portal users who have not yet withdrawn their original UCASH; only the share earmarked for future ecosystem work counts as not circulating, roughly a third of total supply. The colored portion is that block, split across the five funds; the faint part is the rest of supply.
Top UCASH holdings on Ethereum, the home chain. Quantities and percentages are a public-ledger snapshot. Verify any address on Etherscan. Bridge contracts custody the supply bridged to Polygon and Base.
UCASH is a network access and loyalty token. Across the Ucosystem you use it to reach services, unlock premium features and discounts, and pay for things on-chain.
Hold UCASH to unlock premium features and priority services across U.CASH apps.
Holder discounts on domains, hosting, commerce, and services through U.ONLine and Ucosystem properties.
Use UCASH to pay for goods, services, and transactions with on-chain settlement.
UCASH settles machine-to-machine payments for AI agents over HTTP-402.
Register and use .u and @u names and pay to human-readable addresses.
Mint and use custom tokens across the 22 networks U.CASH supports.
UCASH reaches active participants through real contribution across the Ucosystem. It is earned, not given away.
Complete tasks and claim UCASH through the u.builders bounty program. No job offer required.
Stay active across the apps and earn UCASH through rewards and loyalty programs.
One account earns from its own resources and pays for others. Buyers pay per request, sellers earn per call.
Run a converter and move cash and crypto for your community as a real-world ramp.
Ship integrations, dApps, and agent services on the open APIs and SDKs.
Sell B2B and B2C services, plans, and digital goods through Umerce.
Short, direct answers about UCASH and the Ucosystem.
UCASH is the network access and loyalty token for U.CASH and the wider Ucosystem. Use it to access services, unlock premium features and discounts, pay, and earn across domains, payments, AI, and business apps.
The Ucosystem is the umbrella over U.CASH, U.ONLine, and a broad network of apps, agents, and services. U.ONLine (u.onl) is the business-focused sibling: business users, business apps, and services. U.CASH is complementary to U.ONLine and focused on open money and payments. Revenue from across the Ucosystem feeds the U.CASH economy and the UCASH token.
Many. The core U.CASH apps are Pay, Swap, Buy, Names, Agents, Send, and Verify, plus the Portal. The wider Ucosystem adds the domain industry (undomains.com, unregistry.com, unregistrar.com), Umerce (commerce and services), u.builders (bounties), Unverification (premium), Converters, and more.
UCASH is an ERC-20 on three chains: Ethereum, Polygon, and Base. Each has its own contract address, listed above. Always verify the address before interacting.
A wide mix: domain registration, registry, hosting, and email through undomains, unregistry, and unregistrar; payment processing and swap fees; agent commerce; B2B and B2C commerce and services through Umerce; financial services; names and identity; and premium verification.
A share of it supports the U.CASH network and the UCASH token, funding infrastructure, bounties, liquidity and access, and the decentralized applications built on top. A portion is also used to acquire more UCASH for future bounties, allocations, and initiatives.
Through real work: bounties at u.builders, service-usage and loyalty rewards, agent commerce, building dApps and integrations, or running a converter. No job offer is required to build on the network.
No. U.CASH is non-custodial by design. Payments settle to wallets you control, card payments run through your own card processor account, and swaps settle on-chain to addresses you sign with.
On Etherscan, PolygonScan, and Basescan. The labeled top holdings on Ethereum are listed on this page, each linked to its explorer, and the full holder list is public record on-chain.
Get it, hold it for access and discounts, or earn it through bounties and service usage.