Arbitrum Sepolia JSON-RPC

Public Ethereum JSON-RPC endpoint for the Arbitrum Sepolia testnet (chain ID 421614) for development and testing.

Documentation GitHub

API entry from apis.yml

name: Arbitrum Sepolia JSON-RPC
description: Public Ethereum JSON-RPC endpoint for the Arbitrum Sepolia testnet (chain ID 421614) for
  development and testing.
humanURL: https://docs.arbitrum.io/build-decentralized-apps/reference/node-providers
baseURL: https://sepolia-rollup.arbitrum.io/rpc