The Casper RPC documentation provides developers with a comprehensive guide to interact with the Casper network programmatically. Casper is designed to provide enterprise-grade scalability, security, and upgradability for smart contracts, using its innovative proof-of-stake (PoS) consensus mechanism. The documentation includes API endpoints for querying blockchain data, submitting transactions, and managing smart contracts. Developers can leverage Casper’s upgradable smart contracts to build decentralized applications that meet evolving business needs.

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

RPC Gateway for Casper blockchain

Casper RPC networks

▶️ Run in Postman 🚀 Get Started

✨

Casper Mainnet

🕵️ Explorer

↳ JSON-RPC

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

🔍 Status

Connect to Casper and Fetch the Latest Block

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

Retrieve Casper Node Status or Client Version via RPC

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

Test Casper RPC Methods in Postman

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

How to use the Casper 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 Casper collection
Configure your environment: Update the gateway-api-key variable in the Tatum Gateway environment
Start testing: Execute any Casper RPC method and see real-time responses

▶️ Run in Postman