Embedded vs External Wallet

Aura supports two distinct account types. The choice affects custody, fees, and how your trading wallet is managed.

Embedded wallet (new Aura account)

When you sign in with Google, Apple, or email, Aura creates a dedicated embedded wallet via Privy. This wallet is used exclusively for your Hyperliquid and Polymarket activity.

What this means:

• Gas on all transactions is sponsored — no HYPE or MATIC needed
• Zero Hyperliquid builder fees until $1B lifetime volume
• You don't need a pre-existing crypto wallet
• The embedded wallet is custodied by Privy's key management infrastructure

What it doesn't mean:

• You are not locked in — Privy lets you export your private key from account settings
• Aura cannot access your wallet without your authorization

External wallet (bring your own)

Sign in with MetaMask, Rabby, WalletConnect, or any EVM-compatible wallet. Aura uses your wallet for authentication and for signing the one-time setup steps (agent key, unified mode, referral, builder fee approval). All trades after setup are handled by the agent key — your external wallet is never prompted for individual orders.

What this means:

• You retain full self-custody — Aura has no access to your external wallet
• Funds in your external wallet are never touched
• A 0.1bp Aura builder fee applies on mainnet perps
• Gas is still sponsored — no HYPE or MATIC needed

Which should I use?

Both paths use the same Hyperliquid agent key for trading. The main differences are custody model and fees:

See Fees & Costs for full fee details.