> For the complete documentation index, see [llms.txt](https://tychi.gitbook.io/tychi-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tychi.gitbook.io/tychi-whitepaper/features/markdown.md).

# Gas Fee Abstraction

### Overview

Tychi Wallet introduces a powerful **Fee Abstraction Layer** that simplifies how users pay transaction fees. Instead of needing native tokens (like ETH or BNB) for gas, users can pay gas fees using **TYI** or **BNB**—with the system handling conversions and execution automatically behind the scenes.

***

### 🔧 Technical Engineering

A **dedicated backend-powered abstraction layer** handles real-time gas fee estimation, token conversion, and transaction broadcasting. The entire process is **off-chain**, ensuring speed and efficiency without compromising user control.

***

#### System Flow

1. **🔍 Detect Origin Chain**\
   Tychi identifies the blockchain where the transaction was initiated.
2. **📊 Estimate Gas Requirement**\
   The system evaluates network congestion and calculates required native gas for execution.
3. **💹 Fetch Live Conversion Rates**\
   Token prices are fetched and cross-verified using:

   * Chainlink oracles
   * CoinMarketCap API
   * CoinGecko API

   *Slippage tolerance is applied to avoid price mismatches.*
4. **💱 Execute Off-Chain Conversion**\
   TYI or BNB is converted into the required native token using:
   * Internal liquidity reserves
   * Third-party APIs
   * DEX or CEX routes (as needed)
5. **📡 Broadcast Transaction**\
   Final transaction is signed and submitted using the correct native token for gas.

***

### 🧠 AI-Powered Gas Optimization

Tychi integrates an **AI layer** that:

* Monitors historical network data
* Predicts low-congestion windows
* Suggests optimal times to transact
* Avoids tracking user behavior to maintain privacy

This **non-intrusive recommendation engine** helps reduce gas costs while keeping the user in control.

***

### 🔬 Slippage Protection

Before executing a conversion:

* Price feeds are **averaged across sources**
* **Maximum slippage tolerance** is checked
* If exceeded, transaction is **paused or rejected** to prevent loss

### Flow Diagram

### Overview

Tychi Wallet introduces a powerful **Fee Abstraction Layer** that simplifies how users pay transaction fees. Instead of needing native tokens (like ETH or BNB) for gas, users can pay gas fees using **TYI** or **BNB**—with the system handling conversions and execution automatically behind the scenes.

***

### 🔧 Technical Engineering

A **dedicated backend-powered abstraction layer** handles real-time gas fee estimation, token conversion, and transaction broadcasting. The entire process is **off-chain**, ensuring speed and efficiency without compromising user control.

***

#### System Flow

1. **🔍 Detect Origin Chain**\
   Tychi identifies the blockchain where the transaction was initiated.
2. **📊 Estimate Gas Requirement**\
   The system evaluates network congestion and calculates required native gas for execution.
3. **💹 Fetch Live Conversion Rates**\
   Token prices are fetched and cross-verified using:

   * Chainlink oracles
   * CoinMarketCap API
   * CoinGecko API

   *Slippage tolerance is applied to avoid price mismatches.*
4. **💱 Execute Off-Chain Conversion**\
   TYI or BNB is converted into the required native token using:
   * Internal liquidity reserves
   * Third-party APIs
   * DEX or CEX routes (as needed)
5. **📡 Broadcast Transaction**\
   Final transaction is signed and submitted using the correct native token for gas.

***

### 🧠 AI-Powered Gas Optimization

Tychi integrates an **AI layer** that:

* Monitors historical network data
* Predicts low-congestion windows
* Suggests optimal times to transact
* Avoids tracking user behavior to maintain privacy

This **non-intrusive recommendation engine** helps reduce gas costs while keeping the user in control.

***

### 🔬 Slippage Protection

Before executing a conversion:

* Price feeds are **averaged across sources**
* **Maximum slippage tolerance** is checked
* If exceeded, transaction is **paused or rejected** to prevent loss

### 🧩 Flow Diagram

<figure><img src="/files/OegWX9Jy0SRgxWtXi6zt" alt=""><figcaption></figcaption></figure>