Payzum — Crypto & Stablecoin Payments

<meta charset='utf-8'><p data-path-to-node="0" rtrvr-ls="5~hs,8~hs">Payzum lets your Sylius store accept cryptocurrency and stablecoin payments (USDC, USDT and more, across Polygon, Ethereum, Arbitrum, Tron, Solana and other chains) with no custody risk: funds settle directly to the merchant's own wallet — Payzum never holds your money. No chargebacks, no card networks, no PCI surface.</p><p data-path-to-node="1" rtrvr-ls="5~hs,6~hs,8~hs,9~hs">Built for Sylius 2.x on the PaymentRequest flow (not Payum), following the structure of the official StripePlugin. The customer is redirected to a hosted checkout (QR + address, live status) and the payment is completed only from Payzum's signed server-to-server notification — HMAC-SHA-512 verified over the raw request bytes, with replay protection, amount/currency re-checked before completion, and redelivered notifications deduplicated so an order is never fulfilled twice.</p><p data-path-to-node="2" rtrvr-ls="5~hs,6~hs,8~hs,9~hs,49~hs">Quality: 26 unit tests, PHPStan level 8, ECS, verified with live payments against a real Sylius 2.x application. MIT licensed, actively maintained by the Payzum team.</p>