Free Arbitrum Nova RPC Endpoint
Chain ID 42170 · ETH · multi-region with automatic failover
Arbitrum Nova (Chain ID 42170) is the AnyTrust chain of the Arbitrum family — ultra-low fees via a data availability committee, built for gaming and social. NodeFlare runs a dedicated Nova node in US-East.
Public endpoint — no API key
HTTPS
https://rpc.nodeflare.app/nova/publicNeed higher limits? Use a keyed endpoint https://rpc.nodeflare.app/nova/v1/{YOUR_KEY} — get a free key →
Connect to Arbitrum Nova
curl -s -X POST https://rpc.nodeflare.app/nova/public \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'import { ethers } from "ethers";
const provider = new ethers.JsonRpcProvider(
"https://rpc.nodeflare.app/nova/public"
);
const block = await provider.getBlockNumber();import { createPublicClient, http } from "viem";
const client = createPublicClient({
transport: http("https://rpc.nodeflare.app/nova/public"),
});
const block = await client.getBlockNumber();from web3 import Web3
w3 = Web3(Web3.HTTPProvider(
"https://rpc.nodeflare.app/nova/public"
))
print(w3.eth.block_number)Add Arbitrum Nova to your wallet
Network details for MetaMask, Rabby, or any EVM wallet — Arbitrum Nova chain ID 42170 (0xa4ba).
| Network name | Arbitrum Nova |
| RPC URL | https://rpc.nodeflare.app/nova/public |
| Chain ID | 42170 |
| Currency symbol | ETH |
| Block explorer | https://nova.arbiscan.io |
Built for Arbitrum Nova
Gaming, social apps, and micro-transaction workloads on Arbitrum Nova. Every request routes to the nearest healthy node, with automatic failover and no per-request throttling — the gaps public endpoints leave.
Dedicated Arbitrum Nova RPC node — your own path, not a shared pool
NodeFlare runs its own dedicated Arbitrum Nova node on bare-metal — not a reseller of Alchemy or Infura, and not a shared free-for-all pool. A free or paid key gives you a dedicated endpoint path with your own rate limits, no per-request throttling, and full access to heavy methods (eth_getLogs, trace_*, debug_*) — your own Arbitrum Nova RPC without running the node yourself.
Arbitrum Nova RPC — FAQ
What is Arbitrum Nova's chain ID?
Arbitrum Nova's chain ID is 42170 (hex 0xa4ba). Its native currency is ETH and its block explorer is nova.arbiscan.io. You can connect with NodeFlare's free public RPC at https://rpc.nodeflare.app/nova/public — no API key required.
How do I add Arbitrum Nova to MetaMask?
In MetaMask, open the network menu → "Add a network" → "Add a network manually", then enter — Network name: Arbitrum Nova; New RPC URL: https://rpc.nodeflare.app/nova/public; Chain ID: 42170; Currency symbol: ETH; Block explorer URL: https://nova.arbiscan.io. Save, then switch to Arbitrum Nova. The endpoint is free and needs no account.
What is the Arbitrum Nova RPC URL?
NodeFlare's public Arbitrum Nova RPC URL is https://rpc.nodeflare.app/nova/public over HTTPS. No API key is required for the public endpoint.
Is the Arbitrum Nova RPC free?
Yes. The public Arbitrum Nova endpoint is free with no sign-up. A free API key unlocks higher rate limits, heavy methods, and a dedicated path — 2,000,000 compute units per month, no credit card.
What are the Arbitrum Nova RPC rate limits?
The public endpoint is limited to 2 requests/second per IP. A free key gives 10 requests/second; paid plans scale to 500 req/s. Every plan includes all 22 supported chains.
Is NodeFlare a good Arbitrum Nova RPC provider?
NodeFlare is an independent Arbitrum Nova RPC provider that runs its own nodes — not a reseller or aggregator of third-party backends. The public endpoint is free with no sign-up; a free API key adds higher rate limits, and heavy methods (eth_getLogs, trace_*, debug_*) — 2,000,000 compute units per month, no credit card.
Is there a dedicated Arbitrum Nova RPC node?
Yes. NodeFlare runs its own dedicated Arbitrum Nova node(s), and every request is routed to the nearest healthy node with automatic failover. A free or paid key gives you a dedicated endpoint path with your own rate limits and full access to archive methods like eth_getLogs and debug_traceTransaction.
Go deeper
- Full Arbitrum Nova API reference → — supported methods, WebSocket, regions
- Rate limits & compute-unit costs → — what each method costs against your quota
- Pay per request with x402 → — Arbitrum Nova calls in USDC from $0.001, no account:
POST /nova/x402 - RPC for trading bots → and indexers → — low-latency, eth_getLogs-heavy workloads
- Screen a Arbitrum Nova token for scams → — ownership, honeypot check, holder concentration → one risk score
- Onchain tools for AI agents → — token-safety, wallet intelligence and RPC over MCP / x402
Build on Arbitrum Nova with a free key
Higher limits, a dedicated path, and automatic failover — every chain included. No credit card.
Get your free API key →Arbitrum Nova RPC methods
Per-method docs for Arbitrum Nova — parameters, compute-unit cost, and copy-paste examples.