Cronos zkEVM

Overview

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

Supported APIs

Mainnet

Property	Value
Chain Name	cronos-zkevm-mainnet
Chain ID	388
Network Type	Community Chain
Support Level	community
Block Explorer	Explorer
Official Website	Cronos zkEVM Website
Native Gas Token	zkCRO

Testnet

Property	Value
Chain Name	cronos-zkevm-testnet
Chain ID	282
Purpose	Development and testing network
Support Level	community
Block Explorer	Explorer
Official Website	Cronos zkEVM Testnet Website
Native Gas Token	TCRO

API Usage

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

Chain Name

• cronos-zkevm-mainnet (mainnet)

• cronos-zkevm-testnet (testnet)

Example API Calls

Chain Name (Mainnet)

curl -X GET "https://api.covalenthq.com/v1/cronos-zkevm-mainnet/address/demo.eth/balances_v2/?key=API_KEY"

SDK Usage

TypeScript SDK (Mainnet)

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

const client = new GoldRushClient("API_KEY");
const resp = await client.BalanceService.getTokenBalancesForWalletAddress({
    chainName: "cronos-zkevm-mainnet",
    walletAddress: "demo.eth"
});

Foundational API Support

This chain supports 31 GoldRush Foundational APIs:

Pricing API

• Get historical token prices

Activity Feed API

• Get a transaction
• Get transaction summary for address
• Get earliest transactions for address (v3)
• Get recent transactions for address (v3)
• Get paginated transactions for address (v3)
• Get bulk time bucket transactions for address (v3)
• Get all transactions in a block (v3)
• Get all transactions in a block by page (v3)

Block Explorer API

• Get a block
• Get all chain statuses
• Get all chains
• Get block heights
• Get gas prices
• Get log events by contract address
• Get log events by topic hash(es)
• Get logs
• Get resolved address for registered address

Additional Resources

• GoldRush API Documentation
• Supported Chains List
• API Reference
• AppChain Documentation