What is an OpenAPI Spec?
A machine-readable API contract for generating SDKs and docs.
A machine-readable API contract for generating SDKs and docs. In Zateway, this concept powers non-custodial USDT/USDC payments on Polygon, Solana, Base, BSC, Arbitrum, Optimism.
Why OpenAPI Spec Matters for Merchants
Understanding OpenAPI Spec 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 OpenAPI Spec
Zateway supports production and sandbox flows so you can test OpenAPI Spec 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 OpenAPI Spec knowledge with Zateway's 1% flat fee model for predictable unit economics.