RPC documentation entries
Explore practical RPC guides for developers, builders, and teams creating reliable Web3 applications and growing blockchain ecosystems with OnFinality.
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 ...
Astar API: How to Connect to Astar Network RPC and Data Endpoints
The Astar API refers to the JSON-RPC interface for interacting with the Astar network, plus the official token and dApp staking data APIs. This guide explains the different Astar A...
What is a Solana explorer API and how do you use it?
A Solana explorer API lets you programmatically query on-chain data such as transactions, accounts, and blocks, powering custom explorers and analytics dashboards. This article exp...
TON JSON-RPC: Endpoint, Methods, and How to Use It
TON JSON-RPC is a JSON-RPC 2.0 interface to The Open Network, letting you query account state, run smart contract get-methods, and send transactions through a single HTTPS endpoint...
Sui API: How to Choose the Right Interface for Your dApp
Sui offers multiple API interfaces—JSON-RPC, gRPC, and GraphQL—each suited to different workloads. This guide explains the differences, helps you decide which interface to use, and...
Solana Node API: How to Connect, Configure, and Debug RPC Calls
The Solana node API is a JSON-RPC interface that lets applications read network state, send transactions, and subscribe to live updates. This guide covers cluster endpoints, reques...
Optimism RPC Node: Endpoints, Chain Settings, and Debugging
Connect to OP Mainnet and Optimism Sepolia with the right RPC endpoint, chain settings, and debugging workflow. This reference covers public and managed options, common failure mod...
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
