Fees & Costs
Gas
Free. All transactions on both Hyperliquid and Polygon (for Polymarket) are gas-sponsored by Aura. You never need to hold HYPE, MATIC, or any gas token.
Hyperliquid trading fees
Hyperliquid charges maker and taker fees based on your 14-day volume tier. These are protocol-level fees set by Hyperliquid — Aura has no control over them. See Hyperliquid's fee schedule for the full rate table.
Aura builder fee
A 0.1% ceiling on Aura's builder fee for mainnet perps only. This is a one-time approval — you sign it once during setup and it applies to all future trades. See Builder Fee.
Not charged on: perps.fun markets, spot markets, HIP-3 tokens, or Polymarket.
Polymarket fees
Polymarket has its own fee structure for prediction market trades. See Polymarket's docs for current rates.
Platform fee
None. Aura charges no subscription fee, no platform fee, and no withdrawal fee.
Zero-fee path
New accounts created through Aura (embedded wallet via Google, Apple, or email) are eligible for zero Hyperliquid builder fees until $1B lifetime trading volume. See Free Trading.