// Arbitrum One

The Stack Arbitrum One Builders Ship On

Connect to Arbitrum One Mainnet and Sepolia Testnet with low-latency RPC, full archive data, debug and trace APIs, and real-time Streams. The complete Arbitrum One data stack, managed from a single Quicknode dashboard.

Start building for freeContact sales
// Supported networksMainnetSepolia Testnet
// 99.99% uptime SLA17+ global regions
// Unified Arbitrum Stack

Mainnet, Testnet, Archive, and
Streams in One Dashboard.

Arbitrum builders need more than basic RPC. Quicknode runs the full surface: low-latency JSON-RPC, full archive with debug and trace, and real-time Streams, all from one dashboard.

InterfaceStatus
MAINNETONLINE
TESTNETONLINE
ARCHIVEONLINE
STREAMSACTIVE
// Read & Stream

Data Access for Every Arbitrum Workload

Query, subscribe, and stream Arbitrum data with low latency. From a single eth_call to billions of rows of historical logs, you get the right interface for the job.

JSON-RPC over HTTPS and WSS on Arbitrum One and Sepolia Testnet
Full archive nodes with debug_traceTransaction and trace_block
Streams for backfill and real-time Arbitrum blocks, logs, and traces
Webhooks for push notifications on addresses and events
Single Flight RPC to fetch a block and all its receipts in one call
// Build & Ship

EVM Tooling and Reliable Sends

Land transactions on the same Quicknode account. The Ethereum toolchain you already know works unchanged on chain ID 42161.

Smart Transactions and reliable broadcasting to land transactions during congestion
Token authentication, rate-limiting, JWT, and whitelisting on every endpoint
ethers.js, web3.js, viem, and @quicknode/sdk supported out of the box
Archive access with debug and trace for indexing and simulation

Enterprise-grade security and compliance built in

SOC 1
SOC 2 Type II
ISO 27001
// Every Arbitrum Data Pattern

The Full Data Suite.
Every Arbitrum Data Pattern.

Six ways to access Arbitrum data, from a single eth_call to billions of rows of queryable history. Pick the interface, ship faster.

Arbitrum JSON-RPC

Standard JSON-RPC over HTTPS and WSS on Arbitrum One and Sepolia Testnet. Every EVM method supported, including eth_call, eth_getLogs, eth_getBalance, eth_sendRawTransaction, and eth_subscribe, with predictable rate limits.

Explore Core RPC API

Archive, Debug & Trace

Full historical state with no pruning, plus the deep analysis namespaces. Run debug_traceTransaction and trace_block against Arbitrum archive nodes for indexing, simulation, and trading forensics.

Explore Archive Access

Streams

Backfill and real-time Arbitrum blocks, logs, and traces delivered to your datastore with guaranteed reliability. Filter upstream, receive only the data you actually need.

Explore Streams

Webhooks

Event-driven alerts with guaranteed delivery. Subscribe to specific addresses, event types, or onchain conditions.

Explore Webhooks

Single Flight RPC

Fetch a block and all of its transaction receipts in a single call with qn_getBlockWithReceipts. Fewer round trips and faster indexing for trackers, explorers, and analytics on Arbitrum.

Explore Single Flight RPC

JSON-RPC

Batch queries, transaction submission, and contract interactions for HyperEVM and HyperCore historical data.

Explore Core RPC API
// Built for EVM Developers

Your Ethereum app runs on Arbitrum.

Arbitrum is EVM equivalent, so the tooling you already know works unchanged. ethers.js, web3.js, viem, and web3.py all hit a Quicknode Arbitrum endpoint the same way they hit Ethereum. Same methods, same SDK, just a different RPC URL and chain ID 42161.

No rewrites

Point your existing Ethereum codebase at a Quicknode Arbitrum endpoint and deploy. Contracts, libraries, and tooling carry over.

Same JSON-RPC methods

eth_call, eth_getLogs, eth_sendRawTransaction, and eth_subscribe all behave exactly as they do on Ethereum.

Read the Arbitrum docs
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// Your Ethereum code, pointed at Arbitrum
import { createPublicClient, http } from "viem";
import { arbitrum } from "viem/chains";


const client = createPublicClient({
  chain: arbitrum,
  transport: http(QUICKNODE_ARBITRUM_URL)
});


const block = await client.getBlockNumber();


// Same methods, same SDK. Just chain ID 42161.
// Add Arbitrum to MetaMask

Connect MetaMask to ARB in seconds.

Open MetaMask, go to Settings, Networks, Add Network, and enter your Quicknode Arbitrum RPC URL with the details on the right. Save, and MetaMask routes through your private Quicknode endpoint instead of a rate-limited public RPC.

FIELDVALUE
Network nameArbitrum One
RPC URLYour Quicknode Arbitrum URL
Chain ID42161
Currency SymbolARB
Block Explorerarbiscan.io
// Resources

Build on Arbitrum quicker.

Docs, guides, and runnable sample apps for every Arbitrum workload. Clone, customize, and ship.

// Docs

Arbitrum Documentation

Full reference for every Arbitrum JSON-RPC method, WebSocket subscription, and the debug and trace namespaces. Code examples for @quicknode/sdk, ethers.js, web3.js, and viem.

Read the docs
// Guides

Arbitrum Guides

Step-by-step tutorials for building on Arbitrum, with working code you can run. Deploy contracts, track tokens and transfers, index onchain events, and stream real-time data.

Read the guides
// Sample Apps

EVM Token Factory

Deploy ERC-20 tokens from a factory contract. Clone the app and ship on Arbitrum.

View sample app
// Faucet

Testing on Arbitrum One Testnet? Get free Testnet tokens.

The Quicknode Multi-Chain Faucet drips Arbitrum One Testnet tokens to your wallet, one drip per network every 12 hours. Connect MetaMask, Coinbase Wallet, Uniswap Wallet, or Phantom and pick your network.

Get Testnet tokens
// Let's Build

Start where you are.

From your first Arbitrum One endpoint to mission-critical production workloads, Quicknode scales with you. Get started in minutes.

// Developers

For builders who move fast.

Spin up your Arbitrum One endpoint and ship. The free tier covers prototyping and small production loads, no credit card required.

Start building for free
// Enterprise

For teams scaling with confidence.

Dedicated Arbitrum One infrastructure, contractual SLAs, priority support, and procurement-ready terms for wallets, exchanges, trading firms, and high-volume protocols.

Contact sales
"Quicknode provides the most robust, low-latency, high-performance nodes on the market with great multi-chain coverage and excellent technical support."
Ivan Met, Engineering Manager @ Nansen
// FAQ

Frequently Asked Questions

Still have unanswered questions? Reach out to support and the Quicknode team can help you find answers.