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What is Per Api Call Billing?

Per Api Call Billing explained for crypto payment merchants using Zateway.

Per Api Call Billing 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 Per Api Call Billing matters

Teams evaluating Per Api Call Billing usually care about fee drag, settlement speed, and custody risk. Zateway removes intermediary holds so per api call billing workflows settle on-chain.

Using Per Api Call Billing with Zateway

Create a payment session or payment link, let customers pay in USDT/USDC, verify HMAC webhooks, then fulfill. This operationalizes Per Api Call Billing 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 Per Api Call Billing-related flows.

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