What is API Integration?
Connecting your app to Zateway via REST for programmatic payments.
Connecting your app to Zateway via REST for programmatic payments. In Zateway, this concept powers non-custodial USDT/USDC payments on Polygon, Solana, Base, BSC, Arbitrum, Optimism.
Why API Integration Matters for Merchants
Understanding API Integration helps you design safer checkout. Zateway keeps funds non-custodial — payments route to your wallet while you still get webhooks, payment links, and API control.
How Zateway Handles API Integration
Zateway supports production and sandbox flows so you can test API Integration safely. Use payment sessions, HMAC webhooks, and multi-chain USDT/USDC to operationalize this concept without holding customer funds.
Best Practices
Prefer stablecoins over volatile assets, verify webhook signatures, wait for sufficient confirmations, and keep private keys offline. Pair API Integration knowledge with Zateway's 1% flat fee model for predictable unit economics.