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What is Crypto 402?

Crypto 402 explained for crypto payment merchants using Zateway.

Crypto 402 is an important payments concept. Zateway helps merchants apply it with non-custodial USDT/USDC checkout on Polygon, Solana, Base, BSC, Arbitrum, Optimism, 1% flat fees, and direct-to-wallet settlement.

Why Crypto 402 matters

Teams evaluating Crypto 402 usually care about fee drag, settlement speed, and custody risk. Zateway removes intermediary holds so crypto 402 workflows settle on-chain.

Using Crypto 402 with Zateway

Create a payment session or payment link, let customers pay in USDT/USDC, verify HMAC webhooks, then fulfill. This operationalizes Crypto 402 without taking custody of merchant funds.

Implementation checklist

Use sandbox keys first, pick low-fee chains (Polygon/Solana/Base), store tx hashes for audit, and monitor confirmed vs settled states for Crypto 402-related flows.

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