A stablecoin wallet is the software that keeps the private key for an address on a blockchain network. It does not keep the stablecoin itself. The balance sits on the network at an address, and the wallet is what lets someone sign a transfer out of it. For a business, the practical consequence is that a wallet is not a bank account, and a wallet address is not an account number.

EukaPay is the platform that lets a business collect from stablecoin wallets and pay out to them from one account. Customers pay from their own wallets through checkout, a payment link, an invoice, or the API, and you settle to your own bank account in USD, EUR, GBP, or CAD. Payouts go out to a recipient's wallet address in USDC, USDT, ETH, or BTC. This guide covers what a wallet is, the types your customers and recipients actually use, and what to collect from someone before you send.

This guide is written for a business moving money, not for someone buying an asset. The questions that matter are what you send to, what you collect from a recipient, and what your finance team can look up afterward.

Comparing fiat and stablecoin payments

sets out the wider case for the rail.

An address is a string on a blockchain network. It is public, it can be shared, and anyone can send to it. Your recipient copies it out of their wallet and gives it to you. Nothing about the address tells you which wallet software produced it, and your payout does not need to know.

The private key is what signs a transfer out of an address. Whoever has the key can move the balance. Wallet software exists to keep that key, back it up, and sign with it. Key control is the main distinction between wallet types.

Control of the private key is what separates the two. With a custodial wallet, a provider keeps the key and the user signs in to an account. An exchange account or a brokerage account is the common example. With a non-custodial wallet, the user keeps the key themselves, usually protected by a recovery phrase, and a hardware wallet keeps that key on a separate device.

From your side as the payer, the difference is mostly invisible. You send to an address either way. It becomes visible in two places. A custodial account may support fewer networks than a self-custody wallet, so the recipient can only give you an address on the networks their provider runs. And a custodial account often issues a deposit address specific to one asset on one network. The recipient should copy the address for the asset you are actually sending.

USDC and USDT each exist on more than one network, so an address alone does not describe where a transfer will land. The asset and the network are two separate fields, and they travel together.

EukaPay sends payouts in USDC, USDT, ETH, and BTC, across the Ethereum, Tron, and Bitcoin networks. Asset and network are set per payout, so different recipients in the same run can receive different assets on different networks. Each payout carries its own reference you can look up afterward. Payouts are not tied to banking hours or the banking calendar, because the transfer is confirmed by the network instead of by a bank.

There are two ways to send. In the merchant dashboard you upload a recipient list as a CSV file for mass payouts. Through the Payout API you create payouts programmatically, one payout per request. The

crypto payment API guide

walks through the integration.

The merchant chooses fiat or crypto settlement on the account. With fiat settlement, EukaPay converts the incoming payment and pays the proceeds to your own bank account in USD, EUR, GBP, or CAD. Your bank statement stays the system of record. The payer completes the transfer from their own wallet in a browser, and what reaches you is a normal bank credit.

On the paying-out side the wallet that matters is your recipient's, not yours. What you need from them is an address, an asset, and a network.

USDC payments

covers the collecting side in more detail.

Most of your recipients will give you an address from one of the first two, and your payout works the same way in each case. What changes is how carefully you have to confirm the network before the first payment. EukaPay asks for the asset and the network on every payout for exactly that reason, so a recipient's answer is recorded per payment rather than assumed once.

The same EukaPay account carries both directions. It gives you instant crypto-to-fiat conversion at a locked exchange rate to remove your exposure to crypto price swings, support for most major cryptocurrencies, and settlement in USD, EUR, GBP, and CAD to your bank account. A crypto payment confirms on-chain, so protection against chargebacks is a property of the payment method.

For a business collecting from customer wallets and paying recipients at their own, EukaPay is the practical answer: four collection routes, payouts in USDC, USDT, ETH, and BTC across three networks, and fiat settlement into the account your finance team already reconciles. The next step is to open an account and read the API reference before you scope the integration.

Create an account at

app.eukapay.com/signup

, complete verification, provide your legal business information, and generate an API key. A staging environment is available for development. The endpoints for invoices, subscriptions, payouts, balance transfer, and customers are documented at

docs.eukapay.com

.

What is a stablecoin wallet?

A stablecoin wallet is software that keeps the private key for an address on a blockchain network. The balance sits on the network at that address, and the wallet is what signs a transfer out of it.

What is the difference between a custodial and a non-custodial stablecoin wallet?

A custodial wallet means a provider keeps the private key and the user signs in to an account. A non-custodial wallet means the user keeps the key themselves, usually protected by a recovery phrase.

Do I need a stablecoin wallet to accept stablecoin payments?

The merchant chooses fiat or crypto settlement on the account. With fiat settlement, EukaPay converts the payment and pays the proceeds to your own bank account in USD, EUR, GBP, or CAD.

Which stablecoins can EukaPay send to a wallet?

Payouts go out in USDC, USDT, ETH, and BTC. Asset and network are set per payout.

Which networks does EukaPay send payouts on?

Ethereum, Tron, and Bitcoin. The network is set alongside the asset on each payout, so confirm it with the recipient before the first payment.

What do I need from a recipient before sending a stablecoin payout?

An address, the asset you are sending, and the network it should arrive on. A custodial account often issues a deposit address specific to one asset on one network.

How do I fund the payout balance?

Two ways. Transfer from your account's main balance, or make a fiat deposit.

Can I send to many wallets at once?

Upload a recipient list as a CSV file in the merchant dashboard for mass payouts. The Payout API creates one payout per request.