Cronos zkEVM Onchain Data API

Get token balances and transactions for Cronos zkEVM. 22 endpoints supported.

Overview

Cronos zkEVM Mainnet is a zero-knowledge layer 2 network that was launched in a partnership between Cronos Labs and Matter Labs (the team behind zkSync) and Crypto.com.

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

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.

Read docs

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

API Usage

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

Chain Name

• cronos-zkevm-mainnet (mainnet)

Example API Calls

Chain Name (Mainnet)

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

SDK Usage

TypeScript SDK (Mainnet)

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

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

Foundational API Support

This chain supports 22 GoldRush Foundational APIs:

Wallet API

• Get token balances for address on Cronos zkEVM
• Get native token balance for address on Cronos zkEVM
• Get historical portfolio value over time on Cronos zkEVM
• Get ERC20 token transfers for address on Cronos zkEVM

Pricing API

• Get historical token prices on Cronos zkEVM

Security API

• Get token approvals for address on Cronos zkEVM

Transactions API

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

Block Explorer API

• Get a block on Cronos zkEVM
• Get all chain statuses on Cronos zkEVM
• Get all chains on Cronos zkEVM
• Get block heights on Cronos zkEVM
• Get gas prices on Cronos zkEVM
• Get log events by contract address on Cronos zkEVM
• Get log events by topic hash(es) on Cronos zkEVM
• Get logs on Cronos zkEVM

Additional Resources

• GoldRush API Documentation
• Supported Chains List
• API Reference