Free Soneium RPC Endpoint

Soneium is Sony's OP-Stack L2, built for consumer and entertainment applications — and RPC coverage outside the official endpoint is still thin. NodeFlare runs a dedicated Soneium node with automatic failover.

Soneium RPC URLs#

Public endpoint — no API key:

https://rpc.nodeflare.app/soneium/public

Keyed endpoint (free account — higher limits, heavy methods):

https://rpc.nodeflare.app/soneium/v1/{YOUR_KEY}

Get your free key → — no credit card.

Quick start#

curl https://rpc.nodeflare.app/soneium/public \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

import { ethers } from 'ethers';

const provider = new ethers.JsonRpcProvider(
  'https://rpc.nodeflare.app/soneium/public'
);
console.log('Soneium block:', await provider.getBlockNumber());

Soneium at a glance#

Standard OP-Stack semantics apply: 2-second blocks (1 hour ≈ 1,800 blocks), L2 execution fees plus an L1 data fee visible on the receipt, and type-0x7e deposit transactions that originate on L1. Per-method details live in the Soneium method reference.

Free tier#

• 2,000,000 compute units/month — no credit card
• eth_getLogs (75 CU), trace_*/debug_* (100 CU) included on free
• Every supported chain under one key
• Multi-region routing with automatic failover

Add Soneium to MetaMask#

FAQ#

What is the Soneium RPC URL? https://rpc.nodeflare.app/soneium/public — free, no API key, rate-limited per IP.

Is Soneium EVM-compatible? Fully — it's an OP-Stack chain, so all Ethereum tooling (ethers, viem, Foundry) works unchanged.

Does eth_getLogs work on Soneium? Yes, with a free key. Log volume is moderate and bursty around NFT mint events — with only ~1.5 years of history, wide ranges are still practical.

Building on Soneium? Get your free NodeFlare key → — one key for every chain we serve.