Covalent's Viem Compatible SDK

The Covalent Viem SDK, developed in TypeScript, leverages the viem framework to offer a seamless integration path with the Covalent Unified API, facilitating efficient access to blockchain data. Designed to support a broad array of blockchain networks, including both Mainnets and Testnets, this SDK ensures comprehensive coverage and utility for developers working across the supported chains, making it an essential tool for blockchain application development.

Features

The Covalent SDK provides comprehensive support for all Class A, Class B, and Pricing endpoints that are grouped under the following Service namespaces:

• SecurityService: Access to the token approvals endpoints
• BalanceService: Access to the balances endpoints
• BaseService: Access to the address activity, log events, chain status, and block retrieval endpoints
• NftService: Access to the NFT endpoints
• PricingService: Access to the historical token prices endpoint
• TransactionService: Access to the transactions endpoints
• XykService: Access to the XY=K suite of endpoints

The SDK internally utilizes the Covalent TypeScript SDK, offering a robust foundation for interacting with blockchain data. For detailed insights into the SDK's comprehensive capabilities and the extensive range of functionalities it provides, we highly recommend consulting the README documentation. This will equip you with a thorough understanding of the various features and the potential applications of the SDK in your projects.

Installation

npm install viem @covalenthq/client-viem-sdk

or

yarn add viem @covalenthq/client-viem-sdk

Getting an API Key

To get your own Covalent API key, sign up here and create your key from the API Keys tab.

Example

// Import the required modules.
import { publicActionCovalent } from "@covalenthq/client-viem-sdk"
import { mainnet } from "viem/chains"
import { http, createClient } from "viem"

// Create the required clients.
const client = createClient({
    chain: mainnet,
    transport: http("RPC_URL")  // use your RPC provider or bundler
}).extend(publicActionCovalent("YOUR_API_KEY"));

// Returns token balances for a specific wallet address
const tokenBalances = await client.BalanceService.getTokenBalancesForWalletAddress("eth-mainnet", "demo.eth");
console.log(tokenBalances.data)