Transaction Fees
Understanding and optimizing transaction costs on HashKey Chain
HashKey Chain employs a dual-fee structure that provides the security of Ethereum while maintaining cost efficiency. Understanding how fees work is essential for developers building applications on the network.
Fee Structure Overview
Every transaction on HashKey Chain includes two distinct cost components, each serving a different purpose in the network's architecture:
| Fee Component | Purpose | Variability | Primary Factor |
|---|---|---|---|
| L2 Execution Fee | Processing transactions on HashKey Chain | Medium | HashKey Chain network congestion |
| L1 Security Fee | Publishing data to Ethereum mainnet | High | Ethereum gas prices |
L1 Security Fee
The L1 Security Fee represents the cost of posting transaction data to Ethereum mainnet, which is essential for HashKey Chain's security model as a Layer 2 solution.
Key Characteristics
- Fluctuates significantly based on Ethereum mainnet gas prices
- Often constitutes the larger portion of the total transaction cost
- Calculated based on the data size of your transaction
- Benefits from Ethereum's data compression techniques
L2 Execution Fee
The L2 Execution Fee covers the computational resources required to execute your transaction on HashKey Chain itself.
Key Characteristics
- Based on a gas model similar to Ethereum
- Typically more stable and predictable than L1 fees
- Adjusts dynamically based on HashKey Chain network utilization
- Generally much lower than equivalent transactions on Ethereum mainnet