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Build better with Arbitrum nodes

Run high-performing Arbitrum RPC nodes and APIs in minutes on a platform built for scale.

100K+ Developers
20K+ Active Nodes
12 Global Data Centers
Unrivaled infrastructure. Unbeatable pricing.

Reliable Arbitrum One Mainnet and Sepolia Testnet infrastructure. No friction. No complexity. Just infrastructure that scales with you.

Full node request
1 RU
Archive node request
2 RUs
API request = 1 Request Unit
Unlimited requests
Unlock Arbitrum Unlimited Node

Get fully scalable, production-grade RPC infrastructure with a flat monthly fee.
Billing is based on your selected RPS tier, giving you full control over cost and scalability.

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Global Nodes

Chainstack makes sure you get access to robust and scalable infrastructure, ready for your Arbitrum journey, in a matter of minutes.

We take away the burden of managing it so that you can instantly focus on building and exploring data on Arbitrum RPC and API.

Create Arbitrum node

Dedicated Nodes

With Chainstack’s patented Bolt technology you get fully synced dedicated Arbitrum RPC nodes in almost no time at all.

Chainstack spins up dedicated Arbitrum RPC nodes with the latest state—so you get a node ready the same day.

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“We’re happy to have Chainstack fully supporting Arbitrum One now that the migration of Nitro has been complete! We believe that to build an ecosystem, support is needed at all levels. With Chainstack’s full support we’re excited to keep empowering the Arbitrum ecosystem with infrastructure that will continue to provide for the community.”

A.J. Warner Chief Strategy Officer, Offchain Labs

Run Arbitrum nodes anywhere

Spin up dedicated or global Arbitrum nodes with geo-balanced low-latency routing and automated upgrades on reliable high-performance infrastructure.

Arbitrum RPC nodes
Infrastructure scaling options
Security and monitoring

Arbitrum RPC nodes

Chain ID42161
Network nameArbitrum One (a.k.a. “Arbitrum Mainnet”)
Protocol typeOptimistic roll-up secured by Ethereum
Execution stackArbitrum Nitro (Arbitrum Stylus for WASM + EVM)
Native gas tokenETH (same as Ethereum)
Average block time~0.25 s (batch posted to Ethereum every ~8 min)

Run your own Arbitrum node to tap into Ethereum-level security with roll-up-grade fees. Self-hosted Arbitrum One or Arbitrum Nova RPC endpoints provide full data access, zero rate limits, and faster transaction confirmations for any Web3 project.

Create Arbitrum node

Launch an Arbitrum node on Chainstack in three clicks. Our automated provisioning spins up a full or archive node on the Chainstack cloud, so you start querying the Arbitrum blockchain in under a few minutes.

  • Global Node — Geo-balanced Arbitrum RPC endpoint for Mainnet or Sepolia Testnet.
  • Dedicated Node — Region-specific high-performance RPC node instance.

Full and Archive node endpoints are available.

Where you can use a reliable RPC endpoint:

  • MetaMask
  • Hardhat
  • Remix IDE
  • web3.js
  • ether.js
  • Foundry
  • Brownie, etc.

Copy the ready-to-use HTTPS and WebSocket URLs, drop them into v6 ethers.js, and instantly push mainnet or Sepolia testnet transactions.

Learn more in our Docs

1

Arbitrum chain summary

Quick chain reference

2

Node setup options

Choose the right deployment option

3

Update your application

Embed the Arbitrum RPC endpoint in your code

Chain ID42161
Network nameArbitrum One (a.k.a. “Arbitrum Mainnet”)
Protocol typeOptimistic roll-up secured by Ethereum
Execution stackArbitrum Nitro (Arbitrum Stylus for WASM + EVM)
Native gas tokenETH (same as Ethereum)
Average block time~0.25 s (batch posted to Ethereum every ~8 min)

Run your own Arbitrum node to tap into Ethereum-level security with roll-up-grade fees. Self-hosted Arbitrum One or Arbitrum Nova RPC endpoints provide full data access, zero rate limits, and faster transaction confirmations for any Web3 project.

Create Arbitrum node

Launch an Arbitrum node on Chainstack in three clicks. Our automated provisioning spins up a full or archive node on the Chainstack cloud, so you start querying the Arbitrum blockchain in under a few minutes.

  • Global Node — Geo-balanced Arbitrum RPC endpoint for Mainnet or Sepolia Testnet.
  • Dedicated Node — Region-specific high-performance RPC node instance.

Full and Archive node endpoints are available.

Where you can use a reliable RPC endpoint:

  • MetaMask
  • Hardhat
  • Remix IDE
  • web3.js
  • ether.js
  • Foundry
  • Brownie, etc.

Copy the ready-to-use HTTPS and WebSocket URLs, drop them into v6 ethers.js, and instantly push mainnet or Sepolia testnet transactions.

Learn more in our Docs

Grow and scale without worry

Everything your team needs to scale securely and stay supported—SLA, access control, and compliance included.

SLA and dedicated support

Access priority support with guaranteed response times for high-availability infrastructure and RPC node performance.

SOC2 compliant

Our systems follow SOC2 standards with robust access logging, encryption, and operational oversight.

SSO and role-based access

Integrate with your identity provider via SAML or OIDC, and manage access with RBAC at scale.

Arbitrum archive nodes starting at just $49

Get access to Arbitrum archive nodes to query the entire history of the Arbitrum One Mainnet—starting at just $49 per month.

And with Chainstack’s Bolt fast sync technology, you can deploy your own dedicated archive node in minutes instead of months.

Get started

Pay with $ARB or any other crypto

Flexible billing with crypto. Pay for every plan and service using Arbitrum or 150+ other available tokens. No lock-ins, no constraints—just seamless payments on your terms.

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Build on Arbitrum blockchain with us

Discover a wealth of information on how to deploy blockchain infrastructure and build amazing applications using Arbitrum RPCs and APIs with Chainstack.

Frequently Asked Questions
What is Base?

Base is Coinbase’s OP-Stack layer 2 that settles to Ethereum while offering cheaper gas, a familiar EVM environment, and easy fiat on-ramps for the exchange’s 100 M+ users.

How to get Base RPC endpoint?
Open a free Chainstack account, then access your console. Hit Add node, pick the Base network, and spin up your node with one click. Once it’s up, click Access & credentials and take your personal RPC endpoint into your dApp.
How to run a Base node?
A few clicks in the console start a Global Node for Base so you get instant OP-Stack access. Upgrade to a Dedicated Node if you expect sustained throughput or private mempool control. Otherwise, prepare for a self-hosted marathon of OP-Stack builds, sequencer tweaks, and endless Grafana dashboards.
What is Base RPC API?

Base inherits the Ethereum JSON-RPC spec through the OP Stack, so familiar calls such as eth_blockNumber and eth_estimateGas work unchanged. Extra methods surface L2 gas metrics and deposit status when bridging from Ethereum L1. Developers simply point their HTTP or WSS client at a Base node for cheaper, faster EVM execution.

How much does it cost to run a Base RPC?

Because Base is an L2, storage requirements are smaller, yet sequencer traffic can spike; cloud bills range from US $100 to US $250 / month depending on archival depth. Add engineering time for OP-Stack upgrades and the real cost grows. It’s far more economical to grab a pay-as-you-go Base endpoint from a provider such as Chainstack.

Is Base RPC free?

You can point to Base’s shared OP Stack endpoint for free, though it slows down whenever traffic spikes. Chainstack’s free-usage tier delivers up to 3 million reliable Base requests before any billing kicks in.

How to setup a Base RPC?

Copy the Base endpoint shown in your Chainstack project. Drop it into your EVM wallet’s custom RPC list or update ethers.providers.JsonRpcProvider(<URL>) and you’re transacting on Base.

Notes for Arbitrum API

When communicating with a Arbitrum RPC node, the Arbitrum client implements a JSON-RPC specification, a communication protocol allowing one to make remote calls and execute them as if they were made locally.

The Arbitrum API allows developers to communicate with the Arbitrum blockchain to build applications. The best way to use the Arbitrum API is to use a web3 library such as ethers.js if using JavaScript or web3.py using Python.