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Version: 3.2.0

Generate Fee Payment Signature

await avnSdk.proxyUtils.generateFeePaymentSignature(feeData, signerAddress);
  • signerAddress: The AvN address of the signer.

This operation uses a relayer account that the sender authorizes to submit the transfer transaction. You can learn more about relayers HERE.

You can get the AVN_GATEWAY_URL and AVN_RELAYER here.


const { AvnApi, SetupMode, SigningMode } = require("avn-api");
const AVN_GATEWAY_URL = "";

const singleUserOptions = {
suri: "0x5392ca60a61aea99fce14358798de93c1bc11c3696a905718738c71fae539c24", // this is from the generated example account
setupMode: SetupMode.SingleUser,
signingMode: SigningMode.SuriBased,
const avnSdk = new AvnApi(AVN_GATEWAY_URL, singleUserOptions);

async function main() {
await avnSdk.init();

let result = await avnSdk.proxyUtils.generateFeePaymentSignature(

(async () => {
await main();
  • For the nonce call getNonce with accountId = payer, nonceType = 'payment'
  • For the relayerFee call getRelayerFees with relayer = relayer, user = payer, transactionType = eg: 'proxyTokenLower'