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Arbitrum

Arbitrum RPC Endpoint

Arbitrum is the leading Layer 2 ecosystem, enabling users to shape the future of Web3.

Network

About the Network

Arbitrum leads the Layer 2 scaling race with optimistic rollup technology that offers near-instant finality and drastically reduced gas costs. The Arbitrum RPC allows wallets and applications to connect to the Arbitrum blockchain. By using the EVM-compatible Arbitrum RPC endpoint from 1RPC, users get private, verifiable access to the network without exposing wallet metadata or IP addresses to public RPC providers.

Arbitrum One

Arbitrum One

42161
ETH
https://arbiscan.io
https://1rpc.io/arb

Need help connecting?

Check our documentation for guides on adding Arbitrum to MetaMask and other Web3 wallets.

View Docs

How to Add Arbitrum RPC

Add Arbitrum 1RPC to your wallet to use our free Arbitrum RPC endpoint. Follow the steps below to add the Arbitrum RPC endpoint manually to any Web3 wallet:

1

Check that your wallet has RPC settings and configurability

2

Navigate to add a new network

3

Paste the network details into the relevant fields

Network Name:1RPC Arbitrum One Mainnet
RPC URL:https://1rpc.io/arb
Chain ID:42161
Symbol:ETH
4

To add Arbitrum to MetaMask instantly, click on the orange button.

One-click Setup

You can also add Arbitrum to MetaMask automatically without entering details manually.

Privacy-protected Arbitrum RPC endpoint

Fully attested onchain RPC relay with privacy guarantees, not assumptions.

Verifiable trust

1RPC is the first and only Web3 RPC relay with infrastructure that is fully attested onchain. Anyone can verify its integrity by assessing the relay's hardware and software components.

Phishing protection

Transaction sanitizers are anti-phishing toggles that defend against phishing attacks to prevent loss of user funds. These rules can be added and edited at any time on the 1RPC dashboard.

Zero-tracking privacy

What's private stays private. Burn after relaying wipes all metadata after request is done. True zero-tracking means we don't (and are unable to) store or collect your personal data.

Custom API access

Generate a unique API key that spins up RPC endpoints across 64+ chains supported on 1RPC. Customizable keys allow users to define their own permissions, providing greater control over features and access levels.

Explore RPC endpoints across Web3

Privacy-preserving RPC endpoints for 65+ blockchain networks.

Ethereum

Ethereum

1
ETH
https://etherscan.io
https://1rpc.io/eth
or
BNB Chain

BNB Chain

56
BNB
https://bscscan.com
https://1rpc.io/bnb
or
OKT Chain

OKT Chain

66
OKT
https://www.okx.com/explorer/oktc
https://1rpc.io/oktc
or

Frequently
asked questions

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RPC stands for Remote Procedure Call enables interactions within a decentralized network. There are 2 components: an RPC node, which allows applications, including crypto wallets, to connect with the blockchain, and the RPC endpoint, which is a URL that acts as the gateway for accessing the functionalities of a blockchain through an RPC.