RPC documentation entries
Explore practical RPC guides for developers, builders, and teams creating reliable Web3 applications and growing blockchain ecosystems with OnFinality.
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...
What Is a Solana Free API and How Do You Use It?
A Solana free API lets developers read and write to the Solana blockchain without paying for node infrastructure. Public endpoints are great for prototyping, but they often have ra...
What is the SORA API and how do you use it for dApps?
The SORA API refers to the RPC endpoints and JSON-RPC methods that let applications read and write data on the SORA network. This article explains what the SORA API is, how to conn...
What is Crust Network and how does it provide decentralized storage?
Crust Network is a Substrate-based layer 1 blockchain that adds an incentive and service layer to IPFS, enabling decentralized, verifiable, and permanent storage. It offers an on-c...
Polygon Node RPC: Endpoints, Chain Settings, and Provider Selection
Polygon node RPC endpoints let applications read and write data on the Polygon network using the standard JSON-RPC interface. This page covers the mainnet and Amoy testnet chain se...
Sonic Network RPC: Chain Settings, Endpoints, and Provider Selection
Sonic is a high-performance EVM Layer-1 blockchain with sub-second finality. This page covers the official Sonic network RPC settings, how to connect your wallet or dApp, and how t...
Polygon MATIC API: What Should Developers Know?
The Polygon MATIC API refers to the set of interfaces developers use to interact with the Polygon PoS chain, including JSON-RPC endpoints for reading and writing blockchain data. T...
Crust Network Staking: How GPoS Works and What to Check Before Staking CRU
Crust Network is a Substrate-based layer-1 blockchain that provides decentralized IPFS storage. Its GPoS (Guaranteed Proof of Stake) consensus ties staking power to storage resourc...
Acala RPC: How to Connect to Acala Network Endpoints
Acala is a Polkadot parachain focused on DeFi, and it exposes both Substrate RPC and an EVM+ interface. This article explains the available Acala RPC endpoints, how to configure wa...
What is an Ethereum RPC endpoint and how do you choose the right one?
An Ethereum RPC endpoint is the URL your dapp, wallet, or backend uses to talk to an Ethereum node via JSON-RPC. Public endpoints are free but rate-limited, while managed and dedic...
Optimism Nodes: Public, Managed, or Self-Hosted?
Optimism nodes are the software clients that let you read and write data on OP Mainnet, the leading Ethereum Layer 2. You can run your own node for full control, or use a managed R...
SORA Network Blockchain: What Is It and How Do You Connect?
SORA is a Substrate-based blockchain network designed as a decentralized autonomous economy, using the XOR token and a token bonding curve. This article explains what SORA is, how ...
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
