Connect a wallet
Select Arbitrum One in your wallet. Its chain ID is 42161 and the network fee token is ETH. MetaMask and OKX Wallet connect to the official bridge.
Your ecosystem guide / Arbitrum One
Arbitrum One: DeFi, ETH fees and the ARB token
Arbitrum One is an Ethereum Layer 2 for swaps, lending, perpetual futures and yield markets. Operations execute on One; data and results are submitted to Ethereum. ETH pays network fees and ARB participates in ArbitrumDAO governance. Uniswap, Camelot, Aave, Morpho, GMX, Ostium, Omni and Pendle offer different ways to use assets.
- Chain ID
- 42161
- Verified on 13.10.2026
- Network fees
- ETH
- Verified on 13.10.2026
- Settlement layer
- Ethereum
- Verified on 13.10.2026
Arbitrum One
All sections
Arbitrum One Mainnet: the exact network
This page covers Arbitrum One, the Ethereum rollup network. One, Nova and Arbitrum Sepolia use different chain IDs and keep separate balances.
- Arbitrum One chain ID
- 42161
- Gas asset
- ETH on Arbitrum One
- Public RPC
- https://arb1.arbitrum.io/rpc
- Other Arbitrum networks
- Nova: 42170 · Sepolia testnet: 421614
Your first transfer
Choose Arbitrum One. Bring ETH for fees.
Arbitrum One uses Ethereum-compatible wallets and 0x addresses. A wallet can show the same address on Ethereum and Arbitrum, while each network holds its own balance.
Withdraw from an exchange
Choose Arbitrum One as the withdrawal network and copy your wallet address. ETH arriving on One can pay for transfers, swaps and lending operations.
Or bridge existing funds
Arbitrum Bridge connects Ethereum and Arbitrum. Set Ethereum as the source and Arbitrum One as the destination; the Ethereum transaction uses ETH on Ethereum.
Which USDC arrives on Arbitrum One?
Arbitrum One has Circle-issued native USDC and USDC.e, which represents USDC bridged from Ethereum. They have different contracts. The destination token in a bridge route determines which balance you receive.
Receive native USDC
A Circle CCTP route burns USDC on the source network and mints native USDC on One.
Receive the bridged token
The canonical lock-and-mint route locks USDC on Ethereum and creates USDC.e on One.
| Asset | Contract on Arbitrum One | Origin |
|---|---|---|
| USDC | 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 | Native USDC issued by Circle |
| USDC.e | 0xff970a61a04b1ca14834a43f5de4533ebddb5cc8 | USDC bridged from Ethereum |
Bringing ETH or USDC from an exchange
An exchange withdrawal has its own fee and minimum amount. After funds arrive, wallet transactions use ETH on Arbitrum One. Keep some ETH when supplying or trading another token.
| Coin | Exchange | Network on the exchange | Fee | Minimum | Withdrawals | Action |
|---|---|---|---|---|---|---|
| ETH | MEXC | ARBITRUM ONE(ARB) | 0.0000013 | 0.001 | Open | Withdraw |
| ETH | OKX | ARBITRUM ONE | 0.0000014 | 0.001 | Open | Withdraw |
| ETH | Bitget | ARBITRUMONE | 0.000002 | 0.0041311 | Open | Withdraw |
| ETH | Bybit | ARBI | 0.00004 | 0.00004 | Open | Withdraw |
| ETH | Binance | ARBITRUM | 0.00005 | 0.0003 | Open | Withdraw |
| ETH | Gate.io | ARBEVM | 0.0000976 | 0.002 | Open | Withdraw |
| ETH | BingX | ARBITRUM | 0.0001 | 0.0001 | Open | Withdraw |
| ETH | Kraken | ARBITRUM ONE | 0.00015 | 0.0003 | Open | Withdraw |
| ETH | HTX | ARBITRUM | 0.0002 | 0.005 | Open | Withdraw |
| ETH | KuCoin | ARBITRUM | 0.0002 | 0.0004 | Open | Withdraw |
| USDC | MEXC | ARBITRUM ONE(ARB) | 0.0033 | 0.5 | Open | Withdraw |
| USDC | HTX | ARBITRUM | 0.0499 | 0.5 | Open | Withdraw |
| USDC | Gate.io | ARBEVM | 0.05 | 0.01 | Open | Withdraw |
| USDC | Bitget | ARBITRUMONE | 0.149836 | 9.989012 | Open | Withdraw |
| USDC | Bybit | ARBI | 0.2 | 1 | Open | Withdraw |
| USDC | BingX | ARBITRUM | 0.5 | 5.489574 | Open | Withdraw |
| USDC | Binance | ARBITRUM | 0.6 | 3 | Open | Withdraw |
| USDC | Kraken | ARBITRUM ONE (USDC) | 1 | 4 | Open | Withdraw |
| USDC | KuCoin | ARBITRUM | 1 | 5 | Open | Withdraw |
Exchange data as of 14.10.2026 22:37
Returning to Ethereum or an exchange
The canonical bridge withdrawal to Ethereum takes about a week. Request it on Arbitrum One, wait for the countdown and use Claim on Ethereum; the last transaction requires ETH there. Sending to an exchange’s Arbitrum One deposit address follows that exchange’s deposit process. Fast bridges use a separate route with their own fee and available liquidity.
The canonical bridge withdrawal ↗Wallets for this network
Wallet
Keeper (Tonkeeper)
A wallet for transfers, swaps and connecting to apps. Previously named Tonkeeper; multichain features are available on mobile first.
- Arbitrum
iOS · Android
User controls keys
Checked 2026-10-01
Wallet · Terminal
OKX Wallet / DEX
A Web3 product combining self-custody with a dedicated DEX trading module. The wallet is available in apps and an extension; the DEX combines token discovery, analysis and swap execution.
- Arbitrum
iOS · Android · Extension
User controls keys
Checked 2026-10-01
Buying tokens
Trading terminals
Terminal
Maestro
Buys a token from a pasted contract address. Beyond a manual trade it carries limit orders, auto-snipe, copytrade, signals and a bridge.
The fee is 1% on every buy and sell; transfers are not taxed. On Solana it is taken inside the same transaction, on other chains it accrues per Telegram account and is charged once unpaid fees pass the chain minimum. Keys: the documentation cites AES encryption, the Terms of Service say the provider retains the private keys.
- Arbitrum
Telegram
The Terms name the United States and Canada as a Restricted Location; the page with the rest of that list, maestrobots.com/restrictedlocations, is referenced by the Terms themselves and returns 404 as of 18 September 2026.
Checked 2026-09-18
Terminal
Based
Buys a token from a pasted contract address. It carries copytrading, take-profit and stop-loss, limit orders, DCA and a sniper marked as EVM-only.
The fee is 1% per transaction. Keys: the bot provides the wallet, the documentation says the private key is not stored in clear and describes no export button. Based publishes no Terms, so no jurisdiction limits are named anywhere.
- Arbitrum
Telegram
Checked 2026-09-18
Terminal
Cove
Trades off a single USDC balance on Solana and buys from a pasted contract address; buy and sell confirmations are off by default.
The fee is tiered: 1% on most chains, up to 2% on an Ethereum or HyperEVM buy, and Solana sells step from 10% down to 1%. Gas is sponsored up to $5 per trade and the bot asks for the surplus above that. Keys: the Privy-backed wallet is yours and the private key can be exported.
- Arbitrum
Telegram
The Terms, last updated on 11 September 2026, prohibit use from the United States, China and other listed jurisdictions, and prohibit using a VPN to get around that. But it works. At your own risk, folks.
Checked 2026-09-18
Terminal
Definitive
A terminal for market, limit and TWAP orders. Prime uses a separate Trading Vault, with gas costs deducted during execution.
- Arbitrum
Web
User controls keys
Definitive’s terms prohibit use by sanctioned persons and residents of territories subject to country-wide or territory-wide sanctions.
Checked 2026-10-08
Terminal
GMGN
Web trading with charts, wallet labels, contract checks, limit orders, take-profit, stop-loss and copy trading. Connect an external wallet or sign in through Telegram to use a GMGN wallet.
The service charges 1% per buy or sell, including copy trades. Gas, priority fees, validator tips and venue fees are separate. With an external browser wallet, private keys remain with the user.
- Arbitrum
Web
SOL withdrawals from a GMGN Telegram-linked wallet require 2FA setup and an address whitelist. A new or changed whitelist triggers a 3-hour withdrawal hold; rebinding Google Authenticator triggers a 24-hour hold.
Checked 2026-09-22
OKX Wallet / DEX
Swaps and trading →What to do with your wallet
Swaps, loans, perpetuals and yield markets.
These applications use Arbitrum One. Choose the network in the application before selecting a market: a balance on Ethereum, Nova or another Arbitrum chain belongs to a different network.
Swaps and liquidity
Uniswap
Swap tokens or supply liquidity to pools. Uniswap v3 and v4 contracts are deployed on Arbitrum; the pool and liquidity range determine how your assets participate in swaps.
Swaps and liquidity
Camelot
An exchange rooted in Arbitrum One, with liquidity infrastructure across other Arbitrum chains. Concentrated liquidity positions use a chosen price range; the interface offers manual and automated management.
Lending
Aave
Supply assets to a lending pool to earn interest, or borrow against collateral. The interest rate changes with borrowing demand; the health factor tracks a borrower’s proximity to liquidation.
Lending
Morpho
Borrow through a market with its own collateral rules, or supply through a curated vault. Each vault has a specific allocation strategy and fees; Arbitrum is a supported deployment.
Perpetual futures
GMX
Trade perpetual futures or provide their backing liquidity through GM pools and GLV vaults. Pool value reflects trading fees, token prices and traders’ profits or losses.
Perpetual futures
Ostium
Trade perpetual exposure to currencies, commodities, indices, stocks and crypto. Positions track oracle prices; USDC collateral and liquidity are held in Arbitrum contracts.
Perpetual futures
Variational / Omni
Trade perpetuals through RFQ quotes with OLP as counterparty. Fund your settlement pool with USDC on Arbitrum One; the deposit uses a gasless wallet signature and an application fee.
Yield markets
Pendle
Separates a yield-bearing asset into PT, the claim to principal at maturity, and YT, the claim to yield until that date. PT and YT can be traded separately. Liquidity pools pair PT with SY, the wrapped yield-bearing asset.
Where a position’s result comes from
Three ways to put assets to work.
Lending, backing a trading market and buying a dated principal claim create different positions. Choose a mechanism to follow the asset, the source of its return and the exit.
Lend through Aave
- 01Supply an asset
- 02Receive an aToken
- 03Withdraw the asset and accrued interest
Source of the result
Borrowers pay interest to the pool. A supplier’s aToken balance grows as interest accrues.
- Exiting the position
- Withdraw from the pool when enough liquidity is available. Assets supporting an active loan must still meet its collateral requirements.
- What changes the result
- Borrowing demand and reserve parameters change the interest rate. Borrowing against your deposit creates a debt that can trigger liquidation.
Provide GMX liquidity
- 01Deposit pool assets
- 02Receive GM or GLV tokens
- 03Redeem a share of the pool
Source of the result
Trading, borrowing, swap and liquidation fees enter the pool. GM represents one market; GLV allocates liquidity across supported GM markets.
- Exiting the position
- Sell GM or GLV through the application. Redemption depends on liquidity available after reserves for open positions.
- What changes the result
- Your position includes the pool’s assets and its exposure to trader results. Profitable traders draw value from the pool; losing trades add value to it.
Buy Pendle PT
- 01Buy PT for a selected maturity
- 02Hold the principal claim
- 03Redeem at maturity
Source of the result
PT can trade at a discount to its redemption value. Holding to maturity realizes that price difference in the market’s defined accounting asset.
- Exiting the position
- Redeem when the market matures or sell PT earlier at the market price. Each market specifies the redemption asset and conversion rules.
- What changes the result
- The purchase price, maturity date and underlying asset set the result. YT carries the separate right to yield until maturity.
ETH operates. ARB votes. USDC moves value.
These tokens have distinct roles in the same wallet. Sending or using ARB and USDC on One still requires a network fee in ETH.
Network transactions
Pays for computation on Arbitrum One and the data cost charged to each operation. ETH on Ethereum is a separate balance used for Ethereum transactions.
ArbitrumDAO governance
Holders delegate voting power or vote on protocol changes, treasury decisions and Security Council elections. Voting delegation leaves the tokens in the holder’s wallet.
Transfers and collateral
Circle issues native USDC on Arbitrum One. USDC.e is the separate token bridged from Ethereum; applications and deposit routes can accept different versions.
USDC and USDC.e have different contracts
The bridge can deliver native USDC through Circle CCTP, which burns and mints USDC between networks, or USDC.e through the canonical lock-and-mint route.
- USDC
- 0xaf88d065e77c8cC2239327C5EDb3A432268e5831
- USDC.e
- 0xff970a61a04b1ca14834a43f5de4533ebddb5cc8
One is a network. Arbitrum is also a technology family.
Choosing a network chooses its balances, applications and data rules. An application on a dedicated Arbitrum chain does not become an Arbitrum One application.
Arbitrum One
Nitro Rollup settling to Ethereum. Transaction data is published to Ethereum; ETH pays fees. This is the network used by the applications in this hub.
Arbitrum Nova
A separate Ethereum L2 using AnyTrust. A data availability committee keeps transaction data in normal operation. Nova also uses ETH, with its own balances and applications.
Dedicated Arbitrum chains
Teams choose their gas token, data availability and governance. A chain can settle directly to Ethereum as an L2 or to another L2 as an L3.
Execute on One. Settle on Ethereum.
Arbitrum One is an optimistic rollup: it executes operations outside Ethereum, publishes compressed transaction data and submits claims about the resulting state.
A sequencer orders operations
Collects transactions and includes them in Arbitrum blocks. The wallet receives an execution result before Ethereum confirms the batch.
Ethereum receives the batch
Compressed data lets others reconstruct the chain. Publishing many operations together spreads the Ethereum data cost across the batch.
Validators check the result
BoLD lets validators challenge a wrong state claim. Arbitrum One validation is permissionless; Ethereum resolves the final disputed computation.
Who operates and upgrades One?
The Arbitrum Foundation maintains the sequencer. ArbitrumDAO governs protocol upgrades; the elected Security Council can act in emergencies. Transaction ordering and validating a state claim are separate roles.
Primary source ↗Does the Arbitrum fee estimate include Ethereum data costs?
Arbitrum One’s total network fee pays for execution on One and for publishing transaction data to Ethereum. Both are charged through the transaction in ETH on One. ARB’s role is governance; the ordinary network fee uses ETH.
Execution on One
Computation and storage consume resources on Arbitrum.
Data on Ethereum
The transaction also reimburses its share of posting the batch to Ethereum.
The base fee’s two costs
Base fee: execution and Ethereum data.
The base network fee in ETH combines Arbitrum computation with a charge for publishing transaction data to Ethereum. A swap or lending application can collect its own fee alongside the network transaction.
Primary source ↗After reimbursing Ethereum batch costs, base network fee profits are collected by ArbitrumDAO. ARB holders and delegates decide how DAO treasury funds are used through governance. ArbitrumDAO ↗
On One, a sender can add a voluntary priority fee in ETH, which the sequencer uses to order transactions. Of the priority fees collected, 97% goes to the ArbitrumDAO treasury and 3% to the Arbitrum Developer Guild. Transactions without this extra fee are also included. Priority fees and their recipients ↗
Why does Omni let me deposit without ETH?
Omni accepts a wallet signature authorizing a USDC deposit and pays for submitting it. Its deposit fee is charged in USDC. That application flow does not change Arbitrum One’s ETH fee token.
Omni ↗Solidity applications and Rust computation.
Nitro supports Ethereum tooling. Stylus adds a WebAssembly execution environment alongside the EVM, so Rust and Solidity contracts can call one another.
Existing Ethereum tools
Develop Solidity contracts with familiar wallets, libraries and development tools, then deploy them to Arbitrum.
Stylus
Rust, C and C++ can implement computation-heavy contracts that interact with Solidity. The gas benefit depends on the workload.
A dedicated environment
Launch a separate Arbitrum chain when an application needs its own gas model, execution settings, permissions or governance.
New and expired Stylus contract activations on One and Nova are temporarily paused. Already active contracts keep running until activation expires; they can be renewed beforehand through keepalive. Solidity and EVM deployment and execution continue. Stylus activation notice ↗
Questions before using Arbitrum
1Do I need ARB to use Arbitrum One?+
Network transactions use ETH on Arbitrum One. ARB is used for ArbitrumDAO voting; it is not required to pay a normal network fee.
2Why is my Ethereum address empty on Arbitrum?+
The same wallet address can exist on both networks, but their balances are separate. An Ethereum balance arrives on One through a bridge or a withdrawal to One.
3Can I use my Nova balance in an Arbitrum One application?+
Nova is a separate network, with chain ID 42170. Move funds through a route supporting the destination network before using an application on One, chain ID 42161.
4What is the difference between USDC and USDC.e?+
Native USDC is issued by Circle on Arbitrum One. USDC.e represents USDC bridged from Ethereum. Their contracts and supported deposit routes differ.
5What can I do with ARB besides holding it?+
Delegate its voting power to an ArbitrumDAO representative or vote yourself. Lending ARB through an application is a separate position with that market’s interest and collateral rules.
6Does every Arbitrum transaction take a week?+
The waiting period applies to a canonical bridge withdrawal to Ethereum. Transfers, swaps and application operations on One are executed in Arbitrum blocks; they do not wait for that withdrawal period.
Follow the network and its builders
Offchain Labs develops Nitro and Stylus. The Arbitrum Foundation supports the ecosystem; ArbitrumDAO discusses upgrades and treasury decisions in public.
Facts checked 13 October 2026