Send Transactions

Send, monitor, and manage transactions. Send transactions from user or server wallets, sponsor gas, monitor transaction status, and more.

Send raw transactions

Send a raw transaction from a user wallet from the frontend, or server wallet from the backend using the thirdweb API.

For server wallets, you can execute transactions with just your project secret key.
For user wallets in React applications that use the SDK, you can obtain the user wallet auth token (JWT) with the useAuthToken() hook.
For user wallets in TypeScript applications, you can get it by calling wallet.getAuthToken() on a connected inAppWallet() or ecosystemWallet().

Request

POST

/v1/transactions


fetch("https://api.thirdweb.com/v1/transactions", {
  method: "POST",
  headers: {
    "x-secret-key": "<your-project-secret-key>",
  },
  body: {
    chainId: 137,
    from: "0x1234567890123456789012345678901234567890",
    transactions: [
      {
        data: "0xa9059cbb000000000000000000000000742d35cc6634c0532925a3b8d43c67b8c8b3e9c6000000000000000000000000000000000000000000000000016345785d8a0000",
        to: "0xA0b86a33E6411E3036C1C4c7E815D0a82e3F5fD6",
        value: "0",
      },
    ],
  },
});

Response


{
  "result": {
    "transactionIds": [
      "string"
    ]
  }
}

Send contract calls

Send a transaction to a contract from a user wallet from the frontend, or server wallet from the backend using the thirdweb API.

For server wallets, you can execute transactions with just your project secret key.
For user wallets in React applications that use the SDK, you can obtain the user wallet auth token (JWT) with the useAuthToken() hook.
For user wallets in TypeScript applications, you can get it by calling wallet.getAuthToken() on a connected inAppWallet() or ecosystemWallet().

Request

POST

/v1/contracts/write


fetch("https://api.thirdweb.com/v1/contracts/write", {
  method: "POST",
  headers: {
    "x-secret-key": "<your-project-secret-key>",
  },
  body: {
    calls: [
      {
        contractAddress: "0xe352Cf5f74e3ACfd2d59EcCee6373d2Aa996086e",
        method: "function approve(address spender, uint256 amount)",
        params: [
          "0x4fA9230f4E8978462cE7Bf8e6b5a2588da5F4264",
          1000000000,
        ],
      },
    ],
    chainId: 84532,
    from: "0x1234567890123456789012345678901234567890",
  },
});

Response


{
  "result": {
    "transactionIds": [
      "string"
    ]
  }
}

Going further

Explore Full API References

For comprehensive guides on implementing the full thirdweb SDK, explore our language-specific documentation:

Send Transactions

Send raw transactions

Request

Response

Send contract calls

Request

Response

Going further

Explore Full API References

TypeScript

React

React Native

DotNet

Unity

Unreal Engine

Request

Response

Request

Response