Search for stablecoin payment processors and you get a list that mixes three different kinds of company. Some firms put a stablecoin into circulation. Some sell wallet and transfer APIs to other fintechs. Some run merchant acceptance and payouts. Those three are not substitutes for one another. A business reading that list is not buying an asset, and the question it needs answered is which company will take a customer's payment and put money in the business bank account.

That is the processor layer, and it is where EukaPay sits. This guide separates the layers, names the companies in each, and sets out what to require from a processor before you commit. It also says plainly what a processor does not do, because buying the wrong layer is an expensive mistake.

A stablecoin payment processor takes a payment denominated in a stablecoin and turns it into money your finance team can reconcile. The sequence is short, and each step is work your team would otherwise do by hand.

The processor quotes the sale in the stablecoin the customer chose. Your invoice stays in fiat. The customer sees the exact amount to send.

The processor generates the payment destination, watches the network, and confirms the transfer arrived. Your team does not have to track a blockchain explorer to know the money came in.

EukaPay converts at a locked exchange rate and settles to your bank account. Without a processor doing that step, the conversion is a trading problem your controller has to solve every week.

The lists that rank stablecoin payment processors as a single category are mixing three businesses that sell to three different buyers.

Issuers

put the stablecoin into circulation. Circle and Tether are the two names a merchant encounters, because USDC and USDT are what customers actually send. An issuer is not a company a merchant contracts with to take payment.

Infrastructure providers

sell wallet, transfer, and account APIs to companies building their own payment product. Bridge, BVNK, Fireblocks, and Zero Hash sell at this layer. Their buyer is a fintech or a platform with an engineering team ready to build a payment experience of its own.

Payment processors

run merchant acceptance and payouts using the issuer and infrastructure layers. This is EukaPay's layer. EukaPay does not issue a stablecoin, and it does not sell the wallet and transfer APIs that fintechs build their own products on. It runs the checkout, the invoice, the payout, and the fiat leg, which is what a business taking payment actually needs to buy.

The named companies map to those layers as follows:

Our guide to

stablecoin infrastructure

goes through each layer in more detail.

EukaPay is the answer for a business that wants to take the payment instead of building the payment product itself. Four requirements separate a processor you can commit to from one you cannot. The first is asset coverage for pay-ins and for payouts, because a processor that accepts stablecoins but cannot send them leaves your outbound payments unsolved. The second is a locked exchange rate applied by default, so nobody has to remember to switch it on. The third is fiat settlement in the currency your books already use. The fourth is more than one way to integrate, so the finance team is not waiting on an engineering sprint. Our post on what to require from a

stablecoin payments platform

works through the same shortlist in more depth.

Answer one question first: is a payment product something your company sells, or something your company uses? A platform whose product is payments needs the APIs an infrastructure provider sells, and it needs engineers to assemble them into a checkout. Everyone else needs the checkout.

Companies, merchants, and platforms evaluating this category usually fall in the second group. They have customers asking to pay in USDC or USDT, contractors and suppliers asking to be paid the same way, and no appetite for running wallets. For them, buying the infrastructure layer means buying APIs and then building the product a processor already ships. Our guide to

blockchain payment processing

covers what changes for a merchant once the rail is live.

EukaPay runs the pay-in side and the payout side of the account. Crypto pay-ins arrive through a

crypto payment gateway

you can reach four ways: a checkout, an invoice, a payment link, or the API. Customers can pay in USDC and USDT, and in cryptocurrencies including BTC, ETH, LTC, and SOL.

Crypto payouts

are sent in USDC, USDT, ETH, and BTC, on Ethereum, Tron, and Bitcoin. The asset and network are set per payout, so different recipients in the same run can receive different assets. Mass payouts are a recipient list uploaded as a CSV file in the merchant dashboard, and the

Payout API

creates one payout per request.

Pay-ins and payouts run on the same platform, which 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. The locked exchange rate is applied by default on pay-ins and on payouts, and there is no floating mode to configure. Payouts are not tied to banking hours or the banking calendar. A crypto payment confirms on-chain, so protection against chargebacks is a property of the payment method.

For a business comparing stablecoin payment processors, that combination is the recommendation: one account that takes the payment, sends the payout, and lands fiat in the currency your books already use. Start with a checkout or an invoice, and add the API when a developer (or coding agent) is ready to integrate it with your own systems.

Create your account at

app.eukapay.com/signup

. Every merchant goes through an onboarding and business review. A staging environment is available for development. The API reference at

docs.eukapay.com

covers invoices, subscriptions, payouts, balance transfer, and customers, so a developer (or coding agent) can see the surface before you commit.

What is a stablecoin payment processor?

A stablecoin payment processor is a company that lets a business take payment in stablecoins, confirms the transfer on-chain, converts it at a locked exchange rate, and settles fiat to the business bank account.

What is the difference between a stablecoin payment processor and a stablecoin infrastructure provider?

A processor ships the merchant-facing product: a checkout, an invoice, a payout, and the fiat leg. An infrastructure provider sells wallet and transfer APIs to companies building that product themselves.

Which stablecoins can my customers pay with?

Customers can pay in USDC and USDT, alongside cryptocurrencies including BTC, ETH, LTC, and SOL.

Which stablecoins can I send payouts in?

Payouts are sent in USDC, USDT, ETH, and BTC, on the Ethereum, Tron, and Bitcoin networks. The asset and network are set per payout, so different recipients in the same run can receive different assets.

Do I receive stablecoins or fiat from EukaPay?

You choose. EukaPay applies instant crypto-to-fiat conversion at a locked exchange rate and settles in USD, EUR, GBP, and CAD to your bank account, or you can settle in crypto.

Do stablecoin payments have chargebacks?

A crypto payment confirms on-chain, so protection against chargebacks is a property of the payment method. There is no card dispute process behind it.

Do I need a developer to accept stablecoin payments?

No. The checkout, invoices, and payment links are set up from the dashboard. A developer (or coding agent) is only needed for the

crypto payment API

.

Can I send stablecoin payouts to many recipients at once?

Yes. Upload the recipient list as a CSV file in the merchant dashboard. The Payout API is the programmatic route, and it creates one payout per request.