> For the complete documentation index, see [llms.txt](https://docs.cakewallet.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cakewallet.com/cryptos/arbitrum.md). # Arbitrum Arbitrum in Cake Wallet: one 0x address on the Arbitrum network, BIP39 seed, automatic gas fees in ETH, ERC-20 tokens like ARB, and USDT bridging. Official Website: [arbitrum.io](https://arbitrum.io/) Arbitrum `(ETH)` is a Layer-2 network for Ethereum. A Layer-2 is a separate chain that processes transactions off of Ethereum's main chain and posts them back to it, giving you much lower fees and faster confirmations while inheriting Ethereum's security. This wallet type supports the **Arbitrum** network. Do not send funds to or receive funds from other networks using this wallet. ## Addresses In Cake Wallet's Arbitrum wallet, there is only one address per wallet, which is standard for the Ethereum ecosystem. Keep in mind that this has lesser privacy compared to some other assets, where new addresses are automatically generated. Your Arbitrum address starts with `0x` followed by a series of alphanumeric characters. This is the same `0x` address format used on Ethereum and other EVM chains, so the same address can receive funds on many chains. {% hint style="warning" %} The `0x` address format is the same across EVM chains, but the network is not. Make sure the sender uses the **Arbitrum** network. A token sent on the wrong network (for example Ethereum mainnet instead of Arbitrum) will not arrive. {% endhint %} ## Seed Format Cake Wallet uses a 12-word BIP39 seed for Arbitrum wallets by default. Under `Advanced Settings` on the wallet creation screen you can choose a **24-word** BIP39 seed instead, and you can add a seed passphrase. When creating or restoring a wallet, you can use the seed phrase or the private key. The derivation path used is `m/44'/60'/0'/0`. {% hint style="info" %} Because Arbitrum shares the same seed format and derivation path as Ethereum, its seed can be shared with your other Cake Wallet currencies as part of a [wallet group](https://docs.cakewallet.com/features/managing-your-wallet/wallet-groups). {% endhint %} ## Fees Transaction fees are a necessary part of sending ETH or ERC-20 tokens. ETH is consumed as a 'gas' fee when making any transaction from an Arbitrum wallet. This also applies to sending ERC-20 tokens. For example, to send USDT, you pay a network fee in ETH, not USDT. Thus, sending 10 USDT costs a small amount of ETH, and the recipient receives the full 10 USDT. {% hint style="info" %} **Arbitrum has no fee-level selector.** Unlike Ethereum, Polygon, Base and BNB Smart Chain, Cake Wallet does not offer Slow / Medium / Fast for Arbitrum. The fee is set automatically from current network rates and cannot be changed. {% endhint %} A `Fees` row still appears under `Advanced Settings` on the send screen and shows the estimated fee. Tapping that row does nothing on Arbitrum — there is no fee picker to open. ## MEV protection Blink (MEV) protection is **not** available on Arbitrum. Cake Wallet's Blink protection covers Ethereum and Base only, so Arbitrum transactions are broadcast to the network normally. ## Tokens Cake Wallet's Arbitrum wallet can store ERC-20 tokens in addition to ETH. Some common tokens such as ARB, USDT, USDC, USDC.e, WBTC, and LINK are displayed by default. To show other ERC-20 tokens, open the `Assets` tab on your home screen, tap the `Tokens` button, and enable them. ### Adding a new token You can add a new ERC-20 token from the same `Tokens` screen: search for your desired token, then tap to enable it. If the token does not appear, you can add it by [contract address](https://docs.cakewallet.com/features/advanced/add-custom-tokens). Paste the address of the custom token you wish to add, then click the `+` button. ## Transaction history Transaction history is populated using the ArbiScan API. You can enable or disable this API lookup under `ArbiScan History` under `Settings` → `Connections`. ## Features for Arbitrum * [Bridge USDT between chains](https://docs.cakewallet.com/features/basic/bridge-usdt-between-chains) — move USDT between Ethereum, Polygon, and Arbitrum directly in-app. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. 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