RPC documentation entries
Explore practical RPC guides for developers, builders, and teams creating reliable Web3 applications and growing blockchain ecosystems with OnFinality.
Arbitrum One Testnet RPC: Which Endpoint Should You Actually Use?
Arbitrum One is the mainnet chain (chain ID 42161). The testnet that developers usually mean when they say "Arbitrum One testnet" is Arbitrum Sepolia (chain ID 421614), which uses ...
What is the Base testnet RPC and how do you connect to it?
Base testnet RPC endpoints let developers interact with the Base Sepolia testnet for building and testing Ethereum-compatible dApps. This article explains the chain settings, how t...
What is the Aleph Zero RPC endpoint and how do you connect?
Aleph Zero is a Layer 1 blockchain focusing on privacy and scalability using a novel consensus mechanism. Its RPC endpoint allows developers to interact with the chain via JSON-RPC...
Aleph Zero RPC: Endpoints, Setup, and Provider Selection
This guide covers Aleph Zero RPC endpoints for both mainnet and testnet, how to connect your dApp or wallet, and key criteria for selecting an RPC provider. Whether you are deployi...
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
