Payments
Crypto Payments — Hosted checkout & API for 110+ coins White Label — Your brand on the entire payment flow Processing — Auto-convert, withdrawals & controls Payouts — Mass crypto payouts by API or file Platform — Marketplace payments & commissions
Swap Plugins Affiliate Pricing Blog Docs Contact
Language
Sign in
All articles

How to Accept Crypto Payments on OpenCart

Install the CryptoPayr extension for OpenCart 4, add your API key, and start taking Bitcoin, Ethereum and USDT — orders mark paid automatically from the webhook.

CryptoPayr Feb 24, 2026 1.00 min read

Running an OpenCart store? You can add crypto payments with the official CryptoPayr extension for OpenCart 4 in a few minutes. Here is how.

Install the extension

  1. Download the OpenCart extension from the plugins page.
  2. Upload it via Extensions → Installer (it ships as an OCMOD package).
  3. Enable it under Extensions → Payments and open its settings.
  4. Paste your API key from Dashboard → Developers.

How checkout works

A Crypto (CryptoPayr) method now shows at checkout. The buyer picks a coin, pays on the hosted checkout, and the order is marked paid automatically when the signed webhook confirms the payment.

The upside for OpenCart sellers

Follow the OpenCart setup guide or open a free account to begin.

Start accepting crypto today

Open a free CryptoPayr account and take your first crypto payment the same day.

Get started for free

Keep reading

📝 Guides

Test Crypto Payments: Regtest for CI, Testnets for Real Wallet Checks

Test crypto payments safely with sandbox checks, public testnets, and regtest. Verify checkout, webhooks, confirmations, refunds, and edge cases before...

Oct 13, 2026 · 14.00 min Read →
📝 Guides

Crypto IPNs: Replay Checks Won’t Stop Duplicate Orders

Secure crypto IPN webhooks with HTTPS, signature checks, replay protection, and idempotency. Learn how to prevent retries from fulfilling orders twice.

Oct 12, 2026 · 15.00 min Read →
📝 Guides

Add Wallet Support to Crypto Checkout Without a Long Build

Add wallet support to crypto checkout with hosted checkout, plugins, or an API fallback. Cover mobile handoffs, secure requests, and gasless options.

Oct 11, 2026 · 12.00 min Read →