How to Buy Arbitrum (ARB)
Buy ARB on Hyperliquid via Fexr in three steps. Self-custody. No KYC. AI-assisted execution.
Get a Wallet
Download the Fexr wallet app (iOS or Android) or connect any EVM-compatible wallet — MetaMask, Ledger, Tangem. Set a spending cap: this is the maximum Fexr can ever use on your behalf.
- App Store: Fexr Wallet for iOS
- Google Play: Fexr Wallet for Android
- Or connect via WalletConnect from any EVM wallet
Fund with USDC
Deposit USDC to your Fexr account via Arbitrum. USDC bridges to Hyperliquid automatically — typically 1–3 minutes.
- Already have USDC on another chain? Bridge to Arbitrum via Arbitrum Bridge
- Need to buy USDC with fiat? Use a CEX (Coinbase, Binance) then transfer to Arbitrum
- Minimum deposit: $10 USDC
Buy ARB
Tell the Fexr AI assistant what you want: "Buy $100 of ARB at market." The assistant shows you the exact output and fee before you confirm.
- Market orders: instant fill at current price
- Limit orders: "Buy ARB when price drops to $X"
- DCA: "Buy $50 of ARB every week"
Buying Arbitrum — Common Questions
01. What is the minimum amount to buy ARB?
Hyperliquid's minimum order size varies by token — typically $1–$10 worth of ARB. The Fexr AI assistant will alert you if your order falls below the minimum.
02. Do I need to verify my identity (KYC)?
No KYC required for eligible regions. Fexr is self-custody — you hold your own keys. Geographic restrictions apply (USA, UK retail, Ontario, Belgium, OFAC territories).
03. What fees apply when buying ARB?
Hyperliquid spot: maker 0.01%, taker 0.035%. Fexr adds no fee on top. Arbitrum gas when depositing USDC is typically <$0.01.
04. Can I withdraw my ARB?
Perpetual positions settle in USDC. Withdraw USDC via Arbitrum to any EVM wallet. Withdrawals always return to your own wallet — Fexr cannot send funds to third parties.
05. Is buying ARB on Fexr safe?
Your funds stay in your own wallet. Fexr holds a capped, revocable trading permission — not custody of your assets. You can revoke it anytime.
