Arc Onchain Data API

Overview

Arc is an open L1 blockchain purpose-built to unite programmable money and onchain innovation with real-world economic activity.

GoldRush offers the most comprehensive Arc 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 Arc Data APIs provide fast, accurate, and developer-friendly access to the essential onchain data you need.

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.

Mainnet

Property	Value
Chain Name	`arc-mainnet`
Chain ID	`5042`
Network Type	Frontier Chain
Support Level	frontier
Block Explorer	Arc Explorer
Official Website	Arc Website
Native Gas Token	USDC

API Usage

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

Chain Name

arc-mainnet (mainnet)

Example API Calls

curl -X GET "https://api.covalenthq.com/v1/arc-mainnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances_v2/?key=<GOLDRUSH_API_KEY>"

SDK Usage

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

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

Foundational API Support

This chain supports 22 GoldRush Foundational APIs:

Wallet API

Block Explorer API

Internal Transactions (`with-internal`)

Arc supports internal transactions (traces). The Transactions API endpoints marked with-input-data with-internal above accept the with-internal=true query parameter, which includes internal transactions (the value transfers triggered by contract execution that are not recorded as standalone onchain transactions) in the response.

Internal transactions are included in the response by passing with-internal and cost 0.05 credits/item.

Example API Call

Recent transactions with internal transactions

curl -X GET "https://api.covalenthq.com/v1/arc-mainnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/transactions_v3/?with-internal=true&key=<GOLDRUSH_API_KEY>"

Transaction Classification (`with-classification`)

Arc supports transaction classification. Pass with-classification=true to the Transactions API to get a type (such as swap or send_token), a category, a plain-English description, and the assets sent and received for each transaction.

Transaction classification costs 0.05 credits/item.

Example API Call

Recent transactions with classification

curl -X GET "https://api.covalenthq.com/v1/arc-mainnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/transactions_v3/?with-classification=true&key=<GOLDRUSH_API_KEY>"

Overview

Popular Chains 🔥

Foundational Chains

Frontier Chains

Community Chains

Archived Chains

Overview

Supported APIs

Foundational API

Mainnet

API Usage

Chain Name

Example API Calls

SDK Usage

Foundational API Support

Wallet API

Pricing API

Security API

Transactions API

Block Explorer API

Internal Transactions (`with-internal`)

Example API Call

Transaction Classification (`with-classification`)

Example API Call

Additional Resources

​Overview

​Supported APIs

Foundational API

​Mainnet

​API Usage

​Chain Name

​Example API Calls

​SDK Usage

​Foundational API Support

​Wallet API

​Pricing API

​Security API

​Transactions API

​Block Explorer API

​Internal Transactions (with-internal)

​Example API Call

​Transaction Classification (with-classification)

​Example API Call

​Additional Resources

Overview

Supported APIs

Mainnet

API Usage

Chain Name

Example API Calls

SDK Usage

Foundational API Support

Wallet API

Pricing API

Security API

Transactions API

Block Explorer API

Internal Transactions (`with-internal`)

Example API Call

Transaction Classification (`with-classification`)

Example API Call

Additional Resources