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Coinplexo

Crypto payment infrastructure

Get paid in crypto.
Keep control.

A checkout for your customers. A payment API for your business.
All on infrastructure you control.

Explore the checkout Read the docs
Interactive preview
cCoinplexoHosted checkoutSAMPLE DATA
Example merchant Order #10492
Annual membership$49.00Pay with USD Coin on Solana
Amount to send
49.00 USDC
Network
Solana
Invoice status
Waiting for payment
1Waiting
2Detected
3Confirming
4Paid

Scan. Send. Done.

Send only USDC on the Solana network.

Sample QR code. Not a payment address.
DEMO ADDRESSSample only · do not send funds
Awaiting paymentSimulation only. No funds moved.

Seven network adapters.
One payment integration.

  • Bitcoin
  • Ethereum
  • Solana
  • Base
  • BNB Chain
  • Litecoin
  • TRON

The payment experience

Everything between
pay and paid.

Give customers a clear way to pay.
Give your team the information to act.

A checkout your customers can follow.

One payment amount, a unique deposit address, and live progress from detection to confirmation. No Coinplexo account required.

Hosted checkout

Payment updates that reach your backend.

Signed webhook events keep orders in sync. Built-in retries give a failed delivery another chance.

Signed webhooks

The details don’t get lost.

Track partial payments, expired invoices, and confirmations. Handle the exceptions before you fulfill an order.

Payment states

For developers

Your stack.
One more API.

Create an invoice from your server. Send your customer to checkout. Let signed webhooks bring the result back to your store.

Build your integration
  1. 01 Create
  2. 02 Redirect
  3. 03 Verify
Create a payment
POST/api/v1/invoices
{
  "external_order_id": "order-10492",
  "asset": "USDC_SOL",
  "fiat_currency": "USD",
  "fiat_amount": "49.00",
  "success_url": "https://shop.example.com/thanks"
}
201 Created

Your response includes a checkout_url.

Example request body. Authenticate from your backend with a merchant API key.

Separation by design

Private keys have
no place in a
public checkout.

01
Public gatewayInvoices, checkout, payment status
Private infrastructure
02
Isolated signing servicePrivate-key operations
Configured destinations
03
Your cold walletsIndependent fund destinations

Self-hosted infrastructure

Your operator runs the gateway and signing services.

Keys outside the public tier

The public checkout and dashboard do not hold private keys.

Your configured destinations

Confirmed funds are swept to the operator’s cold-wallet destinations.

Getting started

Before you integrate.

Explore the documentation
What do I need to get started?

A merchant API key from your Coinplexo operator, a backend that creates invoices, and an endpoint for payment webhooks. Start with the merchant integration guide.

Which assets can my customers use?

The gateway includes adapters for Bitcoin, Ethereum, Solana, Base, BNB Chain, Litecoin, and TRON. Your operator enables the networks and assets available to your store. Read them from the assets API before creating an invoice.

Does a customer need a Coinplexo account?

No. They open the payment link and pay from their wallet using the asset and network specified on the invoice.

When is it safe to fulfill an order?

Verify the webhook signature and check the invoice’s server-side payment status. A browser redirect alone is not proof of payment. The docs cover verification and duplicate events.

Build with Coinplexo

Start with one payment.

Open the integration guide