Cosmos Blockchain RPC documentation serves as a comprehensive guide for developers to interact with the Cosmos network, enabling them to build and manage decentralized applications (dApps) on the Cosmos ecosystem. The documentation provides detailed information on available RPC endpoints, methods, and parameters necessary for performing tasks such as querying blockchain data, managing accounts, and broadcasting transactions. Cosmos is designed for interoperability and scalability, making it ideal for developers looking to build cross-chain decentralized applications.

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

RPC Gateway for Cosmos blockchain

Cosmos RPC networks

▶️ Run in Postman 🚀 Get Started

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Cosmos Mainnet

🕵️ Explorer

↳ Rosetta API

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

🔍 Status

↳ gRPC over https

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

🔍 Status

↳ Tendermint JSON-RPC

https://cosmos-mainnet.gateway.tatum.io/tendermint

🔍 Status

↳ Tendermint REST API

https://cosmos-mainnet.gateway.tatum.io/tendermint

🔍 Status

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Cosmos Testnet

🕵️ Explorer

↳ gRPC over https

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

🔍 Status

↳ Tendermint JSON-RPC

https://cosmos-testnet.gateway.tatum.io/tendermint

🔍 Status

↳ Tendermint REST API

https://cosmos-testnet.gateway.tatum.io/tendermint

🔍 Status

Connect to Cosmos and Fetch the Latest Block

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

Retrieve Cosmos Node Status or Client Version via RPC

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

Test Cosmos RPC Methods in Postman

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

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

▶️ Run in Postman

RPC Gateway for Cosmos blockchain

Cosmos RPC networks

Cosmos Mainnet

Cosmos Testnet

Connect to Cosmos and Fetch the Latest Block

Retrieve Cosmos Node Status or Client Version via RPC

Test Cosmos RPC Methods in Postman

How to use the Cosmos Postman Collection

Available Cosmos interfaces

Cosmos - gRPC REST