Webhook

An HTTP callback a service sends when an event happens, for example invoice.paid. Shieldz signs every webhook with HMAC-SHA256 so you can verify it came from Shieldz before fulfilling an order.

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Accept a coin: Bitcoin, USDC, USDT, Zcash.

Compare: vs Coinbase Commerce, vs BTCPay Server, vs CryptAPI, vs NOWPayments.

Use cases: For freelancers, For creators, For open-source projects, For online stores.

Build: SDKs, API reference, quickstart. Learn: overview, blog, how it works, supported coins, pricing, is it safe, verify it yourself.