What is Circle?
The company that issues USDC.
The company that issues USDC. In Zateway, this concept powers non-custodial USDT/USDC payments on Polygon, Solana, Base, BSC, Arbitrum, Optimism.
Why Circle Matters for Merchants
Understanding Circle 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 Circle
Zateway supports production and sandbox flows so you can test Circle 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 Circle knowledge with Zateway's 1% flat fee model for predictable unit economics.