RPC documentation entries
Explore practical RPC guides for developers, builders, and teams creating reliable Web3 applications and growing blockchain ecosystems with OnFinality.
How to Get and Use USDC on BNB Testnet
This article explains how to obtain and use USDC on the BNB Smart Chain testnet. It covers the difference between native and bridged USDC, how to get testnet USDC via faucets or by...
How to Choose a Solana WebSocket Infrastructure Provider
Solana WebSocket infrastructure powers real-time account subscriptions, transaction monitoring, and order book streaming. Choosing the right provider depends on your workload: publ...
Solana WebSocket API: How to Stream Real-Time Data from the Chain
The Solana WebSocket API lets you subscribe to real-time updates like account changes, transaction confirmations, and new slots without polling. This article explains the core subs...
Solana RPC Providers for Signed Transactions: API Keys and Security
When building Solana applications that submit signed transactions, choosing the right RPC provider and securing API keys is critical. This article explains how to evaluate Solana R...
What is a Bitcoin endpoint and how do you connect to the Bitcoin network?
A Bitcoin endpoint is a URL that lets your application talk to a Bitcoin node, usually over JSON-RPC. It is the entry point for reading blockchain data, building transactions, and ...
What is Base node infrastructure and when should you run your own node?
Base node infrastructure refers to the hardware, software, and network setup required to run a Base node, including the execution client, consensus client, and synchronization with...
Arbitrum RPC List: How to Choose the Right Endpoint for Your App
This article explains the different types of Arbitrum RPC endpoints—public, managed, and dedicated—and how to choose the right one for your application. It covers chain settings, c...
How to connect to Solana Devnet RPC endpoints
Solana Devnet is a testnet for developers to build and test Solana programs without risking real funds. This page explains how to connect to Solana Devnet RPC endpoints, get SOL fr...
Fantom Node: What Is It and How Do You Connect to Fantom Opera?
A Fantom node is a client that maintains the Fantom Opera blockchain state and serves JSON-RPC requests. You can run your own node or use a managed RPC service. This article explai...
Sui Mainnet RPC: How to Connect and What to Check
Learn how to connect to Sui Mainnet RPC endpoints, understand the JSON-RPC methods, and evaluate infrastructure options for production apps. This guide covers chain settings, reque...
How to Set Up a Custom Sui RPC Endpoint for Your dApp
Learn how to configure a custom Sui RPC endpoint for your dApp, whether you're using the public endpoint, a managed provider like OnFinality, or your own node. This guide covers en...
What is an RPC for Solana and how do you choose the right endpoint?
Solana RPC endpoints let your dApp read chain state, submit transactions, and subscribe to real-time updates. This guide explains how Solana RPC works, how to connect to public and...
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
