Getting Started

No SDK install required for API/cURL. Call the HTTP endpoints directly. Keep your secret key server-side; use client IDs in frontends.

Initialize the SDK and contract on your project:

import { createThirdwebClient, getContract } from "thirdweb"; import { defineChain } from "thirdweb/chains"; // create the client with your clientId, or secretKey if in a server environment const client = createThirdwebClient({ clientId: "YOUR_CLIENT_ID" }); // connect to your contract const contract = getContract({ client, chain: defineChain(11155111), address: "0xA240BEd0a358b7E3263b9Ce0f85E6F14942DbaF2" });

You will need to pass a client ID/secret key to use thirdweb's infrastructure services. If you don't have any API keys yet you can create one by creating a project for free from the dashboard.

All Functions & Events

const response = await fetch('https://api.thirdweb.com/v1/contracts/write', { method: 'POST', headers: { 'Content-Type': 'application/json', 'x-secret-key': '<YOUR_SECRET_KEY>' }, body: JSON.stringify({ calls: [ { contractAddress: "0xA240BEd0a358b7E3263b9Ce0f85E6F14942DbaF2", method: "function createCampaign(address _owner, string _title, string _description, uint256 _target, uint256 _deadline, string _image) returns (uint256)", params: [_owner, _title, _description, _target, _deadline, _image] } ], chainId: 11155111, from: "<YOUR_WALLET_ADDRESS>" }) }); const data = await response.json();