Every deposit, every event, one integration.

SureSettles exposes a key-authenticated REST API that covers the full deposit and payout lifecycle. If you can sign an HMAC, you can be live in an afternoon — no SDK, no lock-in.

Everything the money does, over REST

• Key-authenticated REST. API keys authenticate every request. Create deposit quotes, poll deposit status, trigger payouts, and read the full transaction ledger.
• Deposit lifecycle. From quote creation to on-chain confirmation, every state is queryable by deposit ID.
• Payouts. Initiate USDT payouts to player wallets or external addresses from the same API surface.

Signed events, not silent state

SureSettles pushes lifecycle events to your endpoint as signed webhooks. Every event carries an HMAC-SHA256 signature in the X-Webhook-Signature header, computed from your API secret. If the signature doesn't verify, it isn't from us. Failed deliveries are retried with exponential backoff.

If you can sign an HMAC, you're live

• REST + JSON — standard HTTP clients in any language.
• API keys issued per merchant from the dashboard.
• No SDK required and no platform lock-in.
• Sandbox keys available for full integration testing.