RPC documentation entries
Explore practical RPC guides for developers, builders, and teams creating reliable Web3 applications and growing blockchain ecosystems with OnFinality.
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 ...
How do you check Celo uptime and what does it mean for your dApp?
Celo uptime covers both network health and the RPC endpoints your dApp depends on. This article explains how to monitor Celo mainnet status, evaluate RPC provider reliability, and ...
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...
How do you check Gnosis uptime and what does it mean for your dApp?
Gnosis Chain has a strong track record of network uptime, but RPC uptime is a different metric that directly affects your dApp's availability. This article explains how to monitor ...
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...
Sepolia Beacon RPC Endpoint: Chain Settings, Methods, and Debugging
A Sepolia beacon RPC endpoint exposes the consensus layer of the Ethereum Sepolia testnet, letting you query validator duties, finality, and blob data. This page covers the chain s...
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...
How to Choose a zkSync RPC Provider for Production Apps
Choosing a zkSync RPC provider means balancing reliability, throughput, and zkSync-specific features. This guide explains what to look for in a provider, compares public, shared, a...
What is a Solana dedicated node and when should you use one?
A Solana dedicated node is a single-tenant RPC endpoint that gives your application exclusive access to a Solana node, avoiding the rate limits and noisy-neighbor effects of shared...
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
