> For the complete documentation index, see [llms.txt](https://docs.vooi.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vooi.io/vooi-ultra-v3/vooi_ultra-tradingfees.md). # Ultra Trading Fees This page outlines the trading fee structure for venues currently supported on **VOOI Ultra**: [https://ultra.vooi.io](https://ultra.vooi.io/). Trading fees are an essential part of how DeFi operates, compensating liquidity providers and ensuring healthy market balance. Each supported venue has its own fee model, while VOOI provides transparent access to these structures for better cost awareness. Please note: all fees are determined by the respective venue and are subject to change. ## Extended Currently, Extended features a flat fee structure: * **Maker:** 0 bps (0%) – adds liquidity to the order book. * **Taker:** 2.5 bps (1 – 0.025%) – takes liquidity from the order book. For more details, refer to the [Extended documentation](https://docs.extended.exchange/extended-resources/trading/trading-fees-and-rebates?utm_source=chatgpt.com). ## Lighter Trading fees apply **both when opening and closing positions** and vary dynamically with trading volume: * **Maker:** 0 bps (0.00%) – adds liquidity to the order book. * **Taker:** 0 bps (0.00%) – takes liquidity from the order book. For more details, refer to the [Lighter documentation](https://docs.lighter.xyz/perpetual-futures/fees). ## Aster Trading fees apply **both when opening and closing positions** and vary dynamically with trading volume: * **Maker:** 0 bps (0.00%) – adds liquidity to the order book. * **Taker:** 4 bps (0.04%) – takes liquidity from the order book. For more details, refer to the [Aster documentation](https://docs.asterdex.com/product/aster-perpetual-pro/fees-and-specs/fees). ## Hyperliquid Trading fees apply **both when opening and closing positions** and vary dynamically with trading volume: * **Maker:** 0 – 1.5 bps (1 – 0.015%) – adds liquidity to the order book. * **Taker:** 0 – 4.5 bps (1 – 0.045%) – takes liquidity from the order book. For more details, refer to the [Hyperliquid documentation](https://hyperliquid.gitbook.io/hyperliquid-docs/trading/fees). ## trade.xyz trade.xyz is a HIP-3 market group on Hyperliquid. Fees depend on the market, fee tier, and Growth Mode status. Standard base fees are: * Maker: 3 bps (0.03%) – adds liquidity to the order book. * Taker: 9 bps (0.09%) – takes liquidity from the order book. Growth Mode markets may have lower fees. For more details, refer to the [trade.xyz documentation](https://docs.trade.xyz/perp-mechanics/fees). ## Kinetiq Kinetiq is a HIP-3 market group on Hyperliquid. Fees depend on the specific market and active Hyperliquid/Kinetiq discounts. Current displayed rates are as listed below, but users should check the live fee data before trading. * **Maker:** 2 bps (0.02%) – adds liquidity to the order book. * **Taker:** 5 bps (0.05%) – takes liquidity from the order book. For more details, refer to the [Markets by Kinetiq documentation](https://markets.xyz/docs/fees-and-costs). ## VOOI Fee Approach While VOOI strives to offer no additional fees for trading on supported perpetual DEXs, certain DEXs may still incur additional charges. Referral and rebate mechanisms for VOOI Ultra are planned for future releases and may help partially offset these costs. Additional details will be shared separately. ### VOOI Fees **Trading through VOOI MCP is not subject to VOOI fees.** Venue trading fees may still apply according to the selected venue’s fee schedule. A small additional fee is applied on top of venue trading fees while trading via VOOI Ultra App: **Extended** * **VOOI** does **not apply any additional fees**. **Lighter** * **VOOI** charges a flat **1 bps (0.01%)** fee for taker and maker orders. **Aster** * **VOOI** charges a flat **1 bps (0.01%)** fee for taker and maker orders. **Hyperliquid** * **VOOI** charges a flat **1 bps (0.01%)** fee for taker and maker orders. **trade.xyz** * **VOOI** charges a flat **1 bps (0.01%)** fee for taker and maker orders. **Kinetiq** * **VOOI** charges a flat **1 bps (0.01%)** fee for taker and maker orders. --- # 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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