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Payzum is a non-custodial crypto payment gateway:
merchants accept USDC, USDT and other digital assets across multiple chains
(Polygon, Ethereum, Arbitrum, Base, Optimism, Tron, Solana and more), and funds
settle directly to the merchant's own wallet — Payzum never takes custody.
No chargebacks, no card networks, optional auto-conversion to stablecoins, one
REST API. API docs
This organization hosts the official open-source plugins, apps and SDKs.
Every integration shares the same security model: a hosted checkout (no card
fields, no crypto handling on your server), settlement from signed
server-to-server webhooks (HMAC-SHA-512 over the raw request bytes, replay
window, deduplication) — never from the buyer's browser return.
Accept crypto & stablecoin payments (USDC, USDT, multi-chain) in Fluent Forms with Payzum — non-custodial crypto payment gateway plugin for WordPress payment forms