The industry leading GoldRush Transactions API provides full transaction histories with decoded event logs and traces (i.e. internal transactions, state changes, input data). It is trusted by hundreds of top teams like CoinLedger, Koinly, Guild.xyz, Rainbow, and Entendre Finance to cut down their development time and scale their multichain offerings with enterprise-grade onchain data.

Market Coverage
Supports 100+ chains, giving developers the broad multichain coverage they need to build foundational web3 applications such as crypto tax and accounting tools.

Data Richness
Includes complete transaction histories with decoded event logs, spot and historical fiat prices, and traces (i.e. internal transactions, state changes, input data) for the deepest and richest onchain dataset.

Reliability and Performance
Trusted by top teams like CoinLedger, EY and Guild.xyz for its broad multichain support, fast integrations of new and emerging blockchains, enterprise-grade reliability and high-performance, ensuring developers can scale their applications without performance bottlenecks.

Developer-Friendly Design
Offered through TypeScript, Python and Go SDKs, UI Kits with React components, and as a standard REST API.

Dedicated Support
Available on select plans and includes a dedicated Slack channel.

There are 3 primary developer tools for using the Transactions API:
 
1. Unified API - enterprise-grade endpoints to use with any programming language. Switch blockchains with one path parameter.

curl -X GET https://api.covalenthq.com/v1/eth-mainnet/address/demo.eth/transactions_v3/ \
    -H 'Content-Type: application/json' \
    -u YOUR_API_KEY:

 
2. Client SDKs - official client libraries for TypeScript, Go and Python.
 

import { CovalentClient } from "@covalenthq/client-sdk";

(async () => {
   const client = new CovalentClient("YOUR_API_KEY");
   try { 
    const transactions = client.TransactionService.getAllTransactionsForAddress("eth-mainnet", "demo.eth");

    for await (const tx of transactions) {
    console.log("tx", tx);
    }
} catch (error) {
    console.log(error.message);
}
})();

 
3. GoldRush Kit - beautifully designed React components for your dApp frontend

See the following links to our API Docs and Guides:
- API Docs: comprehensive knowledge base for all things Covalent
- Guides: learn how to build for various use cases and expand your onchain knowledge