The Cronos RPC documentation provides developers with a comprehensive guide to interact programmatically with Cronos, an EVM-compatible blockchain. This guide details the available API endpoints for querying blockchain data, submitting transactions, and managing smart contracts. Cronos is optimized for decentralized finance (DeFi) and NFT applications, offering fast transaction speeds and low costs. With support for the Cosmos ecosystem through IBC, developers can easily integrate cross-chain functionality using the detailed RPC interface.

– Related: 📚 Supported Blockchains • 🌐 RPC Nodes → Cronos • 🔗 Official Cronos Website

RPC Gateway for Cronos blockchain

Cronos RPC networks

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Cronos Mainnet

🕵️ Explorer

↳ JSON-RPC

https://cronos-mainnet.gateway.tatum.io

🔍 Status

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Cronos Testnet

🕵️ Explorer

↳ JSON-RPC

https://cronos-testnet.gateway.tatum.io

🔍 Status

Connect to Cronos and Fetch the Latest Block

This widget lets you instantly query the latest block height (or equivalent) for Cronos using a chain-specific RPC method like eth_blockNumber, getblockcount, or getBlockHeight. Useful for connectivity checks, uptime monitoring, or API testing.

Retrieve Cronos Node Status or Client Version via RPC

Use this pre-configured request to get version or status information for your connected Cronos node. Whether it's web3_clientVersion, getblockchaininfo, or chain-specific endpoints, the method is optimized for each supported blockchain.

Test Cronos RPC Methods in Postman

Explore and test Cronos blockchain methods instantly using our pre-configured Postman collection. Perfect for developers who want to experiment with Cronos RPC endpoints, validate API responses, or integrate Cronos into their applications.

How to use the Cronos Postman Collection

Get your API key: Visit Tatum Dashboard to obtain your free API key
Import the collection: Click the "Run in Postman" button below to import the Cronos collection
Configure your environment: Update the gateway-api-key variable in the Tatum Gateway environment
Start testing: Execute any Cronos RPC method and see real-time responses

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