RPC documentation entries
Explore practical RPC guides for developers, builders, and teams creating reliable Web3 applications and growing blockchain ecosystems with OnFinality.
Frequency RPC: How to Connect to the Frequency Parachain
Frequency is a Polkadot parachain designed for decentralized social applications, using DSNP to give users control over their identity and data. This article explains how to connec...
What is the RPC URL for Binance Smart Chain?
The official public RPC URL for BNB Smart Chain is https://bnb.api.onfinality.io/public. This endpoint lets you query the BNB Smart Chain mainnet without running your own node. For...
What is the BNB Smart Chain RPC URL and how do I use it?
The BNB Smart Chain (BSC) RPC URL is the endpoint your dApp, wallet, or script uses to send JSON-RPC requests to the BSC network. The official OnFinality public endpoint is https:/...
Astar zkEVM RPC: How to Connect and Configure Your dApp
Astar zkEVM is an Ethereum Layer 2 that brings the Astar ecosystem to zero-knowledge rollups. This article explains how to connect your dApp to Astar zkEVM using the correct RPC en...
What is the Base network RPC endpoint and how do I use it?
The Base network RPC endpoint is the URL your dApp or wallet uses to communicate with the Base blockchain. OnFinality provides a public HTTPS endpoint at https://base.api.onfinalit...
What is the Unichain endpoint and how do I connect to it?
Unichain is an Ethereum Layer 2 network built on the OP Stack, designed for fast and low-cost DeFi transactions. To interact with it, you need an RPC endpoint—either a public one f...
Kava RPC: Chain Settings, Endpoints, and Debugging
Kava is a Cosmos-based Layer 1 blockchain that combines the speed of Cosmos with Ethereum Virtual Machine (EVM) compatibility. This page covers Kava RPC endpoints, chain settings, ...
Unichain Node: What It Is and How to Connect
Unichain is an Ethereum Layer 2 network built to reduce latency and lower costs for DeFi applications. This article explains what a Unichain node is, how to connect to the network ...
Solana RPC Node: What It Is, How to Connect, and How to Choose
A Solana RPC node is a server that exposes the Solana JSON-RPC API, letting applications read chain data and submit transactions. This article explains how Solana RPC nodes work, h...
Solana RPC Endpoint: How to Connect, Configure, and Debug
A Solana RPC endpoint is the URL your dApp or validator uses to send JSON-RPC requests to the Solana network. This page explains the mainnet and devnet endpoints, how to configure ...
Solana Endpoint: How to Connect to Solana RPC for Production Apps
A Solana endpoint is the URL your dApp or backend uses to send JSON-RPC requests to the Solana network. Choosing the right endpoint affects latency, reliability, and how well your ...
Avalanche RPC Node: Endpoint Settings, Provider Options, and Debugging
An Avalanche RPC node exposes the C-Chain's Ethereum-compatible JSON-RPC API, letting dApps read and write on-chain data. This article covers endpoint configuration, provider selec...
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
