What is Siwe?
Siwe explained for crypto payment merchants using Zateway.
Siwe is a key concept in crypto payments. With Zateway, merchants use non-custodial USDT and USDC checkout across Polygon, Solana, Base, BSC, Arbitrum, Optimism so Siwe connects directly to faster settlement, lower fees, and zero chargebacks.
Why Siwe Matters for Merchants
Understanding Siwe 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 Siwe
Zateway supports production and sandbox flows so you can test Siwe 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 Siwe knowledge with Zateway's 1% flat fee model for predictable unit economics.