Skip to main content

EIP-712 Signatures

Use EIP-712 structured data signatures to authorize conditional payments.

Why EIP-712​

EIP-712 provides a consistent format for signing structured data, allowing wallets to display clear intent and reducing phishing risk.

Typical Flow​

  1. Create a payment intent and receive typedData.
  2. Ask the payer to sign the typed data using their wallet.
  3. Submit the signature to the confirm endpoint.

Example (JavaScript)​

const signature = await wallet.signTypedData(typedData.domain, typedData.types, typedData.message);
await apiRequest('/payment-intents/confirm', {
  signature,
  payerAddress,
});

Next Steps​