# API3 Perpetual Futures on PowerTrade – Funding Rate, Contract Specs & Trading Guide

Trade **API3 perpetual futures** on [**PowerTrade**](https://power.trade) with **zero fees**, **hourly settlements**, and **transparent funding rates** benchmarked to the **CoinGecko API3/USDC Index**.\
API3 perpetuals allow traders to **speculate or hedge API3 price movements** with **leverage**, **multi-collateral margining**, and **fair, verifiable funding**.

👉 **Start trading API3 Perpetual Futures now on** [**PowerTrade**](https://power.trade) **or its decentralized counterpart** [**Polaris**](https://polaris.trade)**.**

***

### What Are API3 Perpetual Futures?

**API3 perpetual futures** are leveraged derivatives that let traders go **long** or **short** on API3 price movements without holding the underlying token.

* **Long API3 Perpetual:** Profit when API3 price rises.
* **Short API3 Perpetual:** Profit when API3 price falls.

Unlike traditional futures, **API3 perpetuals never expire**. Instead, they use **hourly funding payments** exchanged between long and short traders to maintain alignment with API3’s global spot market price.

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### API3 Perpetual Contract Specifications

| Parameter                | Details                      |
| ------------------------ | ---------------------------- |
| **Instrument Name**      | API3-PERPETUAL               |
| **Underlying Asset**     | API3 (API3)                  |
| **Settlement Currency**  | USDC                         |
| **Leverage**             | Up to 100×                   |
| **Settlement Frequency** | Hourly                       |
| **Trading Fees**         | 0% maker / taker             |
| **Collateral Options**   | BTC, ETH, and stablecoins    |
| **Margin Mode**          | Isolated or Portfolio Margin |

PowerTrade perpetuals offer **zero-fee trading**, **benchmark-aligned funding**, and **multi-collateral flexibility**, built for both **retail** and **institutional traders**.

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### API3 Perpetual Funding Rate Explained

PowerTrade’s **API3 funding rate** ensures perpetual contract prices remain in sync with the **API3/USDC Index**, derived from [**CoinGecko**](https://www.coingecko.com/en/coins/api3).

**Funding Rate Formula:**

```
F = P + clamp(I – P, +0.05%, –0.05%)
```

Where:

* **P (Premium Index):** Difference between the perpetual and index price.
* **I (Interest Rate):** 0.01% per 8 hours (applied hourly).
* **Clamp:** Limits adjustment to ±0.05% to prevent extreme funding shifts.

Funding is **applied hourly** and only impacts open positions at settlement.\
Traders who close positions before funding time **pay no funding fees**.

👉 **Learn more:** PowerTrade Funding Rate Calculation Guide

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### API3/USDC Index Price Methodology

The **API3/USDC Index Price** tracks API3’s fair market value against USDC, using data aggregated from **CoinGecko’s composite exchange feed**.

📊 **Reference Source:** [API3 on CoinGecko](https://www.coingecko.com/en/coins/api3)

#### Purpose of the Index

The index price ensures **fair and transparent pricing** for API3 perpetual contracts — anchoring PowerTrade’s mark prices to a global benchmark and preventing manipulation from any single venue.

#### Index Construction

CoinGecko’s composite API3 index aggregates prices across major exchanges and weights them by:

* Trading volume and liquidity depth
* Exchange uptime and data reliability
* Consistency versus global market averages

Outlier and stale prices are automatically excluded to preserve data integrity.\
PowerTrade uses this validated index to derive its **API3 mark price** and **liquidation thresholds**.

#### Fallback Mechanism

If CoinGecko’s data feed becomes temporarily unavailable, PowerTrade switches to an internal **pre-market index**, derived from **API3 perpetual bid/ask data**.\
This ensures uninterrupted mark pricing and system stability during data disruptions.

***

### Mark Price and Liquidation Logic

PowerTrade’s **mark price** mechanism ensures smooth PnL calculations and fair liquidations:

```
Mark Price = Index Price + EMA(Market Price – Index Price)
```

* The **EMA (Exponential Moving Average)** is calculated over a 15-second window to smooth price volatility.
* This helps minimize unnecessary liquidations and ensures mark prices reflect true market conditions.

**PnL Calculations:**

* **Long API3:** `PnL = Position Size × (Mark Price – Entry Price)`
* **Short API3:** `PnL = Position Size × (Entry Price – Mark Price)`

**Liquidation Trigger:**\
`Account Balance + Unrealized PnL ≤ Maintenance Margin`

When triggered:

1. Open orders are canceled.
2. Positions close at market.
3. The insurance fund and ADL systems maintain fairness and market stability.

***

### Why Trade API3 Perpetual Futures on PowerTrade?

✅ **0% Trading Fees** – Zero maker/taker fees for all perpetuals.\
✅ **Hourly Settlements** – Faster, fairer, and more transparent than 8-hour cycles.\
✅ **Benchmark-Aligned Funding** – Derived directly from CoinGecko index data.\
✅ **Multi-Collateral Margining** – Use BTC, ETH, or stablecoins as collateral.\
✅ **Portfolio Margin** – Cross-margin perpetuals and options.\
✅ **Trade Anywhere** – Available on [PowerTrade (CEX)](https://power.trade) and [Polaris (DEX)](https://polaris.trade).

PowerTrade’s API3 perpetual markets deliver **deep liquidity**, **verifiable funding**, and **institutional-grade transparency**, ideal for professional traders and active retail users alike.

***

### Example API3 Perpetual Use Cases

1️⃣ **Hedge API3 Holdings**\
Protect your API3 spot portfolio by shorting API3 perpetuals.

2️⃣ **Leverage Trading**\
Amplify API3 exposure with up to 100× leverage.

3️⃣ **Funding Rate Arbitrage**\
Profit from differences between PowerTrade and other exchanges’ funding rates.

4️⃣ **Volatility Plays**\
Trade short-term API3 moves with zero fees and hourly funding precision.

***

### Funding Transparency and Reproducibility

PowerTrade stands out as one of the few exchanges where **funding rates are fully reproducible** from public order book and index data.\
Every rate can be independently verified — ensuring fairness and transparency.

👉 **See details:** PowerTrade Perpetual Funding Rate Methodology

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### How to Start Trading API3 Perpetuals

1. **Create an account** on [PowerTrade](https://power.trade) or [Polaris](https://polaris.trade).
2. **Deposit collateral** – USDC, BTC, or ETH.
3. **Select API3-PERPETUAL** from the market list.
4. **Trade instantly** with 0% fees and hourly funding transparency.

***

### Conclusion

PowerTrade’s **API3 Perpetual Futures** provide the most transparent, efficient, and fee-free way to trade API3 with leverage.\
Whether you’re hedging API3 exposure, arbitraging funding, or speculating on price volatility, **PowerTrade** and **Polaris** deliver the most advanced perpetual markets in crypto.

👉 **Start trading API3 perpetuals today on** [**PowerTrade**](https://power.trade) **or** [**Polaris**](https://polaris.trade)**.**