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Overview

Arbitrum is Ethereum’s leading L2 rollup, combining full EVM equivalence with dramatically lower fees. Trusted by major DeFi protocols for secure, scalable smart contract execution.
Note about how we calculate transaction fees on Arbitrum:Generally, the fees_paid in our transaction response is simply the product of gas_price and gas_spent .However for Arbitrum, the fees_paid in our transaction response is the sum of multiple L1 and L2 fees associated with the function call, transaction execution and storage.To calculate the same fees_paid provided in our transaction response from Arbiscan , take the product of their Gas Price Bid and Gas Usage.
GoldRush offers the most comprehensive Arbitrum Data API suite for developers, analysts, and enterprises. Whether you’re building a DeFi dashboard, a wallet, a trading bot, an AI agent or a compliance platform, our Arbitrum Data APIs provide fast, accurate, and developer-friendly access to the essential onchain data you need.

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Supported APIs

Foundational API

Access structured historical blockchain data across 100+ chains using REST APIs. Get token balances, transaction histories, decoded event logs, NFT assets, token holders and more.

Use cases: Wallets, portfolio trackers, crypto accounting & tax tools, and DeFi dashboards.

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Mainnet

PropertyValue
Chain Namearbitrum-mainnet
Chain ID42161
Network TypeFrontier Chain
Support Levelfrontier
Block ExplorerArbiscan
Official WebsiteArbitrum Website
Native Gas TokenETH

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Testnet

PropertyValue
Chain Namearbitrum-sepolia
Chain ID421614
PurposeDevelopment and testing network
Support Levelfrontier
Block ExplorerSepolia Arbiscan
Official WebsiteArbitrum Sepolia Testnet Website
Native Gas TokenETH

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API Usage

To use this blockchain network in GoldRush API calls, use:

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Chain Name

  • arbitrum-mainnet (mainnet)
  • arbitrum-sepolia (testnet)

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Example API Calls

curl -X GET "https://api.covalenthq.com/v1/arbitrum-mainnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances_v2/?key=API_KEY"

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SDK Usage

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

const client = new GoldRushClient("API_KEY");
const resp = await client.BalanceService.getTokenBalancesForWalletAddress({
    chainName: "arbitrum-mainnet",
    walletAddress: "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
});

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Foundational API Support

This chain supports 23 GoldRush Foundational APIs:

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Wallet API

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NFT API

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Pricing API

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Security API

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Activity Feed API

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Block Explorer API

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Additional Resources