Frequently asked questions

It means we never hold your funds or your keys. A payment travels direct from the buyer to the seller's own wallet on the blockchain. U.CASH Portal reads the chain to detect that the payment happened and then notifies the seller. Because we never custody funds, U.CASH Portal is a tool, not a money transmitter.

Bitcoin (and Lightning), Ethereum and every ERC-20, USDT and USDC across their networks, Solana, Tron, XRP, Monero, Litecoin, UCASH, and any custom token you add (ERC-20 / TRC-20 / SPL style). Card payments are also supported through the seller's own Stripe account.

No. You connect the wallets and nodes you already control. We never generate or store your private keys, and we never hold a balance of your funds. Payouts go to the address you specify, directly from the buyer.

The platform fee is a small percentage of your monthly volume, tiered so it drops as you process more (0.50% down to 0.20%). The fee is debited from a prepaid credit balance when a sale settles — it is never taken out of the payment, and we never hold the payment itself. See Pricing.

Immediately in principle: the buyer pays your wallet directly on-chain. A sale is marked settled once the payment reaches the required number of confirmations for that coin. There is no payout queue and no withdrawal to wait for, because the money was never anywhere but your wallet.

Yes. You can run the checkout under your own domain, set your brand name, logo, and colors, add custom CSS, and configure which customer details to collect at checkout. These are unlocked through the cumulative funding tiers described on the Pricing page.

AI agents are first-class merchants. They can create priced resources, receive payment to their own wallet, and buy other resources over plain HTTP using the 402 Online Protocol, with API keys, idempotent calls, HMAC-signed webhooks, and an MCP tool surface. See Agents and agents.u.cash.

No. Because the platform never holds customer funds — payments go direct buyer to seller — it is not a money transmitter or a custodian. It is payment infrastructure. (As with any payments integration, you remain responsible for your own regulatory compliance in your jurisdiction.)

Settings are stored encrypted, settlement webhooks are HMAC-signed so you can verify them, URL inputs are checked for unsafe redirects, and your private keys never leave your control. Each tenant connects with its own limited database user, so isolation is enforced by the database itself.