:root {
  /* Colors */
  --gelato-text-primary: #010110;
  --gelato-dark-bg: #010110;
  --gelato-dark-bg-elevated: #22222a;
  --gelato-dark-text-primary: #FFEFE3;
}

.dark #search-bar-entry {
  background-color: var(--gelato-dark-bg-elevated);
}

/* Navbar CTA button */
#topbar-cta-button a span {
  background-color: var(--gelato-text-primary);
}

#topbar-cta-button a:hover * {
  opacity: 1;
}

#topbar-cta-button a svg {
  color: currentColor;
}

.dark #topbar-cta-button a span {
  color: var(--gelato-dark-bg);
  background-color: var(--gelato-dark-text-primary);
}

.dark #topbar-cta-button a {
  color: var(--gelato-dark-bg);
}
#navbar a[href='/migration-guides'] {
  display: none;
}

const { generatePrivateKey, privateKeyToAccount } = require("viem/accounts");

export default async function handler(req, res) {
  // Set CORS headers
  res.setHeader('Access-Control-Allow-Credentials', true);
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'GET,OPTIONS,PATCH,DELETE,POST,PUT');
  res.setHeader(
    'Access-Control-Allow-Headers',
    'X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version'
  );

  // Handle preflight request
  if (req.method === 'OPTIONS') {
    res.status(200).end();
    return;
  }

  if (req.method !== "POST")
    return res.status(405).json({ error: "Only POST allowed" });

  try {
    const privateKey = generatePrivateKey();
    const account = privateKeyToAccount(privateKey);
    res.status(200).json({ privateKey, address: account.address });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
}


const { createPublicClient, http } = require("viem");
const { privateKeyToAccount } = require("viem/accounts");
const { baseSepolia } = require("viem/chains");
const { gelato } = require("@gelatonetwork/smartwallet/accounts");

const usdcContract = {
  address: "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
  abi: [
    {
      name: "balanceOf",
      type: "function",
      stateMutability: "view",
      inputs: [{ name: "account", type: "address" }],
      outputs: [{ name: "", type: "uint256" }],
    },
  ],
};

export default async function handler(req, res) {
  // Set CORS headers
  res.setHeader('Access-Control-Allow-Credentials', true);
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'GET,OPTIONS,PATCH,DELETE,POST,PUT');
  res.setHeader(
    'Access-Control-Allow-Headers',
    'X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version'
  );

  // Handle preflight request
  if (req.method === 'OPTIONS') {
    res.status(200).end();
    return;
  }

  if (req.method !== "POST")
    return res.status(405).json({ error: "Only POST allowed" });

  try {
    const privateKey = req.body.privateKey;
    const signer = privateKeyToAccount(privateKey);

    const publicClient = createPublicClient({
      chain: baseSepolia,
      transport: http(),
    });

    const account = await gelato({
      owner: signer,
      client: publicClient,
    });


    const balance = await publicClient.readContract({
      address: usdcContract.address,
      abi: usdcContract.abi,
      functionName: "balanceOf",
      args: [account.address],
    });

    res.status(200).json({ balance: Number(balance) / 1e6 });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
}


const { createPublicClient, http, formatEther } = require("viem");
const { privateKeyToAccount } = require("viem/accounts");
const { baseSepolia } = require("viem/chains");

export default async function handler(req, res) {
  // Set CORS headers
  res.setHeader('Access-Control-Allow-Credentials', true);
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'GET,OPTIONS,PATCH,DELETE,POST,PUT');
  res.setHeader(
    'Access-Control-Allow-Headers',
    'X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version'
  );

  // Handle preflight request
  if (req.method === 'OPTIONS') {
    res.status(200).end();
    return;
  }

  if (req.method !== "POST")
    return res.status(405).json({ error: "Only POST allowed" });

  try {
    const privateKey = req.body.privateKey;
    const account = privateKeyToAccount(privateKey);

    const publicClient = createPublicClient({
      chain: baseSepolia,
      transport: http(),
    });

    const balance = await publicClient.getBalance({ address: account.address });
    res.status(200).json({ balance: formatEther(balance) });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
}


const { createWalletClient, createPublicClient, http, zeroAddress } = require("viem");
const { privateKeyToAccount } = require("viem/accounts");
const { baseSepolia } = require("viem/chains");
const {
  createGelatoSmartWalletClient,
  erc20,
} = require("@gelatonetwork/smartwallet");
const { gelato } = require("@gelatonetwork/smartwallet/accounts");

export default async function handler(req, res) {
  // Set CORS headers
  res.setHeader('Access-Control-Allow-Credentials', true);
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'GET,OPTIONS,PATCH,DELETE,POST,PUT');
  res.setHeader(
    'Access-Control-Allow-Headers',
    'X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version'
  );

  // Handle preflight request
  if (req.method === 'OPTIONS') {
    res.status(200).end();
    return;
  }

  if (req.method !== "POST")
    return res.status(405).json({ error: "Only POST allowed" });

  try {
    const privateKey = req.body.privateKey;
    const sponsorApiKey = process.env.SPONSOR_API_KEY;

    const signer = privateKeyToAccount(privateKey);
    const publicClient = createPublicClient({
      chain: baseSepolia,
      transport: http(),
    });
    const account = await gelato({
      owner: signer,
      client: publicClient,
    })
    const client = createWalletClient({
      account,
      chain: baseSepolia,
      transport: http(),
    });

    const tokenAddress = "0x036CbD53842c5426634e7929541eC2318f3dCF7e";

    const smartWalletClient = await createGelatoSmartWalletClient(client, {
      apiKey: sponsorApiKey,
    });

    const response = await smartWalletClient.execute({
      payment: erc20(tokenAddress),
      calls: [{ to: zeroAddress, data: "0x", value: 0n }],
    });

    const txHash = await response.wait();

    res.status(200).json({ gelatoId: response.id, txHash });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
}


const { createWalletClient, createPublicClient, http, zeroAddress } = require("viem");
const { privateKeyToAccount } = require("viem/accounts");
const { baseSepolia } = require("viem/chains");
const {
  createGelatoSmartWalletClient,
  native,
} = require("@gelatonetwork/smartwallet");
const { gelato } = require("@gelatonetwork/smartwallet/accounts");

export default async function handler(req, res) {
  // Set CORS headers
  res.setHeader('Access-Control-Allow-Credentials', true);
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'GET,OPTIONS,PATCH,DELETE,POST,PUT');
  res.setHeader(
    'Access-Control-Allow-Headers',
    'X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version'
  );

  // Handle preflight request
  if (req.method === 'OPTIONS') {
    res.status(200).end();
    return;
  }

  if (req.method !== "POST")
    return res.status(405).json({ error: "Only POST allowed" });

  try {
    const privateKey = req.body.privateKey;
    const sponsorApiKey = process.env.SPONSOR_API_KEY;

    const signer = privateKeyToAccount(privateKey);
    const publicClient = createPublicClient({
      chain: baseSepolia,
      transport: http(),
    });

    const account = await gelato({
      owner: signer,
      client: publicClient,
    });

    const client = createWalletClient({
      account,
      chain: baseSepolia,
      transport: http(),
    });

    const smartWalletClient = await createGelatoSmartWalletClient(client, {
      apiKey: sponsorApiKey,
    });

    const response = await smartWalletClient.execute({
      payment: native(),
      calls: [{ to: zeroAddress, data: "0x", value: 0n }],
    });

    const txHash = await response.wait();

    res.status(200).json({ gelatoId: response.id, txHash });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
}


const { createWalletClient, createPublicClient, http, zeroAddress } = require("viem");
const { privateKeyToAccount } = require("viem/accounts");
const { baseSepolia } = require("viem/chains");
const {
  createGelatoSmartWalletClient,
  sponsored,
} = require("@gelatonetwork/smartwallet");
const { gelato } = require("@gelatonetwork/smartwallet/accounts");

export default async function handler(req, res) {
  // Set CORS headers
  res.setHeader('Access-Control-Allow-Credentials', true);
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'GET,OPTIONS,PATCH,DELETE,POST,PUT');
  res.setHeader(
    'Access-Control-Allow-Headers',
    'X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version'
  );

  // Handle preflight request
  if (req.method === 'OPTIONS') {
    res.status(200).end();
    return;
  }

  if (req.method !== "POST")
    return res.status(405).json({ error: "Only POST allowed" });

  try {
    const privateKey = req.body.privateKey;
    const sponsorApiKey = process.env.SPONSOR_API_KEY;

    const signer = privateKeyToAccount(privateKey);
    const publicClient = createPublicClient({
      chain: baseSepolia,
      transport: http(),
    });

    const account = await gelato({
      owner: signer,
      client: publicClient,
    });

    const client = createWalletClient({
      account,
      chain: baseSepolia,
      transport: http(),
    });

    const smartWalletClient = await createGelatoSmartWalletClient(client, {
      apiKey: sponsorApiKey,
    });

    const response = await smartWalletClient.execute({
      payment: sponsored(sponsorApiKey),
      calls: [{ to: zeroAddress, data: "0x", value: 0n }],
    });

    const txHash = await response.wait();

    res.status(200).json({ gelatoId: response.id, txHash });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
}


Returns estimated gas values for a `UserOperation`.

eth_estimateUserOperationGas

`EntryPointAddress`

Encoded data specifying one or more function calls the smart account will execute during the operation.

A unique sequential number used to prevent replay attacks and ensure correct execution ordering.

Paymaster data (Empty for sponsored and native payments)

The address of the account initiating the UserOperation. Can be a counterfactual address if the account is yet to be deployed.

Cryptographic signature (or authorization data) from the account, used to prove that the operation is valid and authorized.

`UserOperationEntryPoint0.6`

The address of the contract responsible for deploying the smart account, if the account is not yet deployed.

Encoded constructor or init data to be passed to the factory contract for creating the smart account.

Paymaster address (Empty for sponsored and native payments)

Paymaster post-operation gas limit (Empty for sponsored and native payments)

Paymaster verification gas limit (Empty for sponsored and native payments)

`UserOperationEntryPoint0.7`

Gelato

Explore our API & SDK references, demos, and guides for building onchain apps.

Gelato Developer Docs

Migration Guides

Overview

Understanding EIP-7702

Understanding ERC-4337

EIP-7702 vs ERC-4337

Learn how to create and manage a Sponsor API Key for gas sponsorship

Create a Sponsor API Key

Sponsor Gas for your users

Pay Gas with ERC-20 Tokens

Pay Gas with Native Tokens

Learn how to estimate gas costs for transactions using the Smart Wallet SDK

Estimate Gas Costs

Applied Use Cases: Morpho Demo

Learn how to create and manage a Dynamic Environment ID for wallet providers

Create Dynamic's Environment ID

Learn how to integrate Dynamic or Privy as wallet providers with the Gelato Smart Wallets React SDK

Use Dynamic or Privy Signers

Introduction to Gelato Bundler

Quick Start

Track your UserOp Request

Retrieves wallet capabilities and supported configurations for specified chain IDs.

wallet_getCapabilities

Prepares calls for smart wallet execution with specified capabilities.

wallet_prepareCalls

Sends prepared calls for smart wallet execution with signature and context.

wallet_sendPreparedCalls

Returns the `chainId` of the network the bundler is serving.

eth_chainId

Sends a `UserOperation` to the specified network.

eth_sendUserOperation

Returns a `UserOperation` given a `userOpHash`.

eth_getUserOperationByHash

Returns a `UserOperationReceipt` given a `userOpHash`.

eth_getUserOperationReceipt

Returns an estimated priority fee per gas.

eth_maxPriorityFeePerGas

Returns an array of `EntryPoint` addresses supported by the bundler.

eth_supportedEntryPoints

Returns an estimated gas price for a `UserOperation`.

eth_getUserOperationGasPrice

Demo

Gelato Smart Wallet SDK is currently supported on the following networks

Supported Networks

Introduction

ABC Stack

Arbitrum Orbit

OP Stack

Deploy your own rollup

Learn how to run an Arbitrum Orbit node on your local machine

Run a Full Orbit Node

Learn how to build and run an op-node from source

Run OP Node

Run a Verifier Node

Celestia

Avail

EigenDA

Custom Gas Token

Public Testnet

Verifier Node Package

Gelato Services

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Account Abstraction

On & Off-ramp

Community

Identity & KYC

Others

Get a Private RPC

Calculate Compute Units

Pricing & Plans

Trigger Types

Typescript Functions

Solidity Functions

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Dedicated msg.sender

Test & Deploy Typescript Functions

Write Solidity Functions

Test & Deploy Solidity Functions

Initiate an Automated Transaction

Templates & Use Cases

Analytics & Monitoring

Subscriptions & Payments

What is Relaying?

Essential reading to safeguard your contracts

Make sure your contracts are not affected by the recently disclosed vulnerability

Introduction

How-To Guides

React SDK

ERC4337 Bundler

Smart Wallet Endpoints

Bundler API Endpoints

Additional Resources

eth_estimateUserOperationGas

Path Parameters

Query Parameters

Body

Response