Payment gateway
Get paid from anywhere, with a single integration.
Payment links and QR codes, invoices, recurring billing, refunds, an API with webhooks and a button for your website. Payers can use a different token; you receive the exact amount in digital dollars.
- Link, QR code and invoice
- API, webhooks and button
- Full test environment

01 — Benefits
Everything a sales operation needs
From your first payment link to a full integration with your systems.
Link and QR code
Create a charge and share it by link or QR code. The status updates automatically when the payment is confirmed on the network.
Invoices and recurring billing
Invoices with customer, line items and due date. Weekly or monthly recurring billing generates a new invoice each cycle.
Full or partial refunds
Refund part or all of a sale, with a record of what has already been refunded.
API and webhooks
An API documented in OpenAPI and signed webhooks so your system knows, server-side, when each charge has been paid.
A button for your website
A script renders the payment button and opens checkout in a new tab, without disrupting your site's design.
Reports
Sales for the period with exact totals by currency, conversion rate and the list of what was paid.
02 — Features
What the gateway delivers
From payment links to the API, everything on the same sales dashboard.
- Payment links and QR codes
- Invoices with line items and due dates
- Weekly or monthly recurring billing
- Full or partial refunds
- API and signed webhooks
- Button and SDK for websites
- Test environment
- Sales reports
- Automatic conversion to digital dollars
- Credit and debit card checkout
03 — How it works
From testing to your first sale
The same API from start to finish: only the key changes.
Generate your keys
Separate test and production keys, in the merchant dashboard.
Integrate in the test environment
The same API, with charges on a test network, payment simulation and test webhooks.
Go live
Swap the test key for the production key and start charging.
Track
Every sale on the dashboard, with reports and refunds.
04 — For developers
One line to put the button live
The button runs isolated from your site and tracks status through the public API. Order fulfillment is confirmed on your server, via webhook or API.
<script
src="https://ducripto.com/sdk/v1/checkout.js"
data-cobranca="9b2f…"
async></script>05 — In practice
For every way you sell
Online, by subscription or at the counter.

Online store
A button at checkout and a webhook confirming the order on your server.

Services and subscriptions
An invoice generated each cycle; the customer pays through the link, with no automatic debit.

Counter and events
A QR code on screen or in print; the payment appears on the dashboard as soon as it is confirmed.
06 — What sets it apart
A gateway built into the account
What you receive is already in your multi-currency balance, alongside the rest of your money. Payments go straight to your wallet: nothing sits idle with the platform.
- Payment straight to your wallet, with no intermediary holding the funds
- Automatic conversion: the payer chooses the token, you receive the exact amount
- A test environment identical to production
- Credit and debit card checkout on links, invoices and the website button
07 — Security
Secure integration by design
A sale is confirmed by the server, never by the browser.
Signed webhooks
Signed with a dedicated secret and a time window: your server verifies the origin of every event.
Server-side confirmation
Order fulfillment is confirmed via webhook or API, never by the customer's browser.
Separate keys
Test keys never move real money; production keys stay on your server only.
Isolated button
The button runs isolated from your site, and checkout opens in its own tab, protected against clickjacking.
08 — Questions
Frequently asked questions
How does the customer pay?
With crypto from their wallet, by link or QR code, and with a credit or debit card through card checkout.
Does recurring billing include automatic debit?
No. Automatic debit does not exist in crypto: each cycle, a new invoice is generated and the customer pays through the link.
Can I test first?
Yes. The test key uses the same API on a test network, with payment and webhook simulation.
Where is the documentation?
On the developer page, with examples and the OpenAPI specification.
Start getting paid
Open the account, generate a test key and create your first charge in the test environment.
Automatic conversion applies to fixed-amount charges in digital dollars. Payment methods are subject to availability in your country.
Platform
More from the platform
Each product handles one part of your financial life. Together, they share the same account, the same access and the same protection.
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- CreditLoans in the same account, with everything clear before you sign.
- Flash loansA loan that begins and ends within the same transaction, for professionals.