Casper

Explore Casper, a blockchain optimized for enterprise solutions with upgradable smart contracts. Build decentralized applications using its RPC gateway.

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

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Casper Mainnet

🔍 Status 🕵️ Explorer

↳ JSON-RPC

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

📋 Methods

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

Available Casper interfaces and methods

Each Casper network and interface below exposes its own set of RPC methods, listed live from Tatum's RPC Gateway. Query these endpoints for any interface to explore what it supports:

/_methods – machine-readable list of interfaces and methods
/llms.txt – human- and AI-readable documentation context

Casper Mainnet

JSON-RPC

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

Discovery: /_methods · /llms.txt

account_put_deploy
chain_get_block
chain_get_block_transfers
chain_get_era_info_by_switch_block
chain_get_era_summary
chain_get_state_root_hash
info_get_deploy
info_get_chainspec
info_get_peers
info_get_status
info_get_validator_changes
query_balance
query_global_state
state_get_account_info
state_get_auction_info
state_get_dictionary_item

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