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With ZeroDev and Dynamic, you can sponsor gas so your users don’t pay transaction fees. This page is the minimal path to get sponsorship working.

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Prerequisites

  • Create a Zerodev account and projects for each network you want to support, as well as a gas policy for each one. Make sure you use the V1 dashboard to configure your project.
  • Visit the Sponsor Gas section of the dashboard, toggle on Zerodev and add your project IDs.

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1. Add the ZeroDev extension

Install the package and add the extension when creating your client. You need the EVM extension as well: 
npm install @dynamic-labs-sdk/zerodev @dynamic-labs-sdk/evm

import { createDynamicClient } from "@dynamic-labs-sdk/client";
import { addEvmExtension } from "@dynamic-labs-sdk/evm";
import { addZerodevExtension } from "@dynamic-labs-sdk/zerodev";

const dynamicClient = createDynamicClient({
  environmentId: "YOUR_ENVIRONMENT_ID",
});

addEvmExtension();
addZerodevExtension();
See Adding ZeroDev Extension for details.

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2. Send a sponsored transaction

Use sendUserOperation with a wallet account. Sponsorship is on by default when you use a wallet account, so your users don’t pay gas: 
import { sendUserOperation } from "@dynamic-labs-sdk/zerodev";
import { isEvmWalletAccount } from "@dynamic-labs-sdk/evm";
import { getPrimaryWalletAccount } from "@dynamic-labs-sdk/client";
import { parseEther } from "viem";

const walletAccount = getPrimaryWalletAccount();

if (walletAccount && isEvmWalletAccount(walletAccount)) {
  const receipt = await sendUserOperation({
    walletAccount,
    calls: [
      {
        to: "0xRecipientAddress...",
        value: parseEther("0.01"),
        data: "0x",
      },
    ],
  });
  console.log("Sponsored tx sent:", receipt.userOpHash);
}
That’s the basic flow: enable in dashboard → add extension → call sendUserOperation with a wallet account.

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Optional: check if an operation can be sponsored

To show different UI when sponsorship isn’t available (e.g. unsupported network or paymaster limit), use canSponsorUserOperation before sending: 
import { canSponsorUserOperation, sendUserOperation } from "@dynamic-labs-sdk/zerodev";
import { parseEther } from "viem";

const calls = [
  { to: "0xRecipientAddress...", value: parseEther("0.01"), data: "0x" },
];

const canSponsor = await canSponsorUserOperation({ walletAccount, calls });

if (canSponsor) {
  await sendUserOperation({ walletAccount, calls });
} else {
  // Fallback: let user pay gas, or show a message
}
See canSponsorUserOperation for details.

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When sponsorship is used

ScenarioSponsored?
sendUserOperation with walletAccount (default)Yes (withSponsorship: true)
sendUserOperation with withSponsorship: falseNo — user pays gas
sendUserOperation with kernelClient onlyDepends on how the kernel client was created

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