Connecting to Ostium

Open Ostium app and click on the "connect" button.

Choose how you want to connect with Ostium app. You can connect to Ostium in two different ways, depending on your experience and preferences:

A. Web3 Wallet (Recommended for Web3-Native Users): Connect using your Arbitrum-compatible wallet, such as MetaMask, Rabby, or any other wallet provider you prefer. This option is ideal for users familiar with Web3 concepts and comfortable managing things like gas fees (e.g., using ETH to cover transaction costs). You’ll have full control over your wallet and interactions on-chain.
B. Email (Recommended for CEX Users or Web3 Beginners): Log in with your email to create a smart account, managed by you but with a more user-friendly experience. This method is perfect for users coming from centralized exchanges like Binance, Coinbase, or Bybit, who may not be familiar with Web3. No need to worry about gas fees — transactions are abstracted away and handled for you. Email verification is required. This login method is powered by Privy.

Feature

Web3 Wallet

Email (Smart Account)

Who it's for

Web3-native users

CEX users or Web3 beginners

Login method

Arbitrum-compatible wallet (MetaMask, Rabby, etc.)

Email + confirmation

Wallet type

User’s own wallet

Smart account (managed by user)

Gas fees

Paid by user in ETH

Covered by the platform

Custody

Fully self-custodial

Managed via Privy, still user-controlled

Best for

Full Web3 control & experience

Simple access without needing to manage keys

A. Web3 wallet

Select Wallet

Click on "Continue with a wallet" if your wallet is not there and select it.

Connect and confirm

Enable 1-click trading (ostium sponsors gas)

Enable 1-Click Trading > Follow module steps and approve transactions

You need some ETH to approve the transaction.

(If you want, you can disable 1-click trading)

Profile > Disable 1CT

B. Email

Introduce your email

Write your email address > Submit

Go to your inbox

Open the no-reply@privy.io and copy code > Go back to ostium.app and paste code

Smart account sucessfully created

You can see the account address under the profile. The smart accounts use USDC to pay for withdrawal transactions' gas fee. We decrease the available USDC in 2 units to ensure users can withdraw their assets anytime.