RPC documentation entries
Explore practical RPC guides for developers, builders, and teams creating reliable Web3 applications and growing blockchain ecosystems with OnFinality.
Arbitrum API: Endpoints, Methods, and Production Tips
The Arbitrum API lets developers interact with Arbitrum One and Arbitrum Nova using standard Ethereum JSON-RPC methods, with full EVM compatibility. This article covers chain setti...
What should I know about SORA network RPC endpoints?
SORA is a blockchain monetary system built on Substrate, offering a decentralized framework for digital money. Developers building on SORA need reliable RPC endpoints for reading c...
Polkadot Network Migration: What's Changing and How It Affects Your RPC Endpoints?
The Polkadot Asset Hub Migration (AHM) moved core network functions—balances, staking, and governance—from the Relay Chain to the Asset Hub system parachain. For RPC users, this me...
Asset Hub Kusama RPC Endpoint: How to Connect and Use It
Asset Hub Kusama (formerly Statemine) is a system parachain on Kusama for low-cost asset creation and transfers. This article provides the chain settings, available RPC methods, an...
Kava API Endpoints: What Developers Need to Know
Kava combines Cosmos SDK and Ethereum Virtual Machine (EVM) compatibility, offering multiple API interfaces: Tendermint RPC, EVM JSON-RPC, REST API, and WebSocket endpoints. This a...
Asset Hub Kusama RPC Endpoints: Chain Settings, Faucet, and Debugging Tips
Asset Hub Kusama is the Kusama system parachain for hosting and transferring fungible and non-fungible assets. This article provides the RPC endpoints, chain settings, faucet infor...
What Are the Kaia RPC Endpoints and How Do You Connect to Kaia?
Kaia is an enterprise-grade L1 blockchain with mainnet (Cypress) and testnet (Kairos). Developers can use public RPC endpoints for testing, but production apps often need a dedicat...
peaq RPC Endpoint: Chain Settings, Faucet, and Debugging
peaq is a Polkadot-based Layer-1 blockchain tailored for Decentralized Physical Infrastructure Networks (DePIN) and the machine economy. To interact with the peaq network, develope...
What are the Celo RPC endpoints for mainnet and testnet?
Celo RPC endpoints let developers connect to the Celo blockchain. Mainnet chain ID is 42220, testnet (Celo Sepolia) chain ID is 11142220. Free public endpoints exist but are rate-l...
What Are the IoTeX RPC Endpoints and How Do You Connect?
IoTeX is an EVM-compatible Layer 1 blockchain focused on DePIN and the machine economy. To interact with IoTeX, you need an RPC endpoint — a gateway to read blockchain data and sub...
BSC API: JSON-RPC Methods, WebSocket, Finality & Examples
The BSC API is the JSON-RPC interface for BNB Smart Chain (BSC), an EVM-compatible network with mainnet chain ID 56 and testnet chain ID 97. Developers use standard Ethereum-style ...
What Are Avalanche Nodes and When Should You Use Them?
Avalanche nodes are the backbone of the Avalanche network, handling transaction relay, block production, and consensus. They come in several types: validators, full nodes, archive ...
Ethereum
Solana
Polygon
Base
Arbitrum
BNB Chain
Polkadot
Optimism
