Fee Structure & Economics
Nexis Appchain implements a sophisticated fee structure based on EIP-1559, optimized for low-cost AI agent operations while maintaining economic sustainability and security.Overview
Base Fee
1 gwei minimum (adjustable)
EIP-1559
Dynamic fee market with priority tips
Multi-Vault
3-vault system for fee distribution
EIP-1559 Implementation
Fee Components
Every transaction on Nexis has two fee components:- Minimum: 1 gwei
- Dynamic: Adjusts based on block utilization
- Target: 50% block capacity (15M gas)
- Burned/Redistributed: 70% of base fee
- Minimum: 0 gwei
- User-defined: Higher tips = faster inclusion
- Recipient: 100% to sequencer
- Typical: 0-2 gwei for normal priority
Base Fee Adjustment
Base Fee Calculation
Fee Estimation
Fee Vault System
Nexis implements a three-vault system for fee distribution:1. BaseFeeVault
The BaseFeeVault receives 70% of all transaction fees:BaseFeeVault Contract
- 50% Burned: Permanently removed from circulation → deflationary pressure
- 50% Staking Rewards: Distributed to NZT stakers → yield generation
2. SequencerFeeVault
Receives 20% of fees to fund sequencer operations:SequencerFeeVault Contract
- Infrastructure costs (servers, bandwidth)
- Monitoring and maintenance
- Emergency reserves
- Future decentralized sequencer rewards
3. L1FeeVault
Receives 10% to cover Base L2 data availability costs:L1FeeVault Contract
- Pay for batch submission to Base L2
- Cover calldata costs on Base
- Buffer for gas price spikes
- Ensure data availability
L1 Data Availability Costs
Nexis batches transactions and posts them to Base L2 for data availability. This incurs costs:Cost Calculation
Batch Optimization
Gas Costs by Operation
Standard Operations
Nexis-Specific Operations
Gas Cost Calculator
Cost Comparison with Other Chains
Transaction Cost Comparison
Why higher than Base L2? Nexis is an L3 that batches to Base L2, adding one layer of overhead. However, Nexis optimizes for AI agent workloads with custom contracts and is still 70x cheaper than Polygon and 30,000x cheaper than Ethereum L1.
AI Agent Operation Costs
Comparing Nexis-specific operations across chains:Monthly Cost Estimates
For a typical AI agent running on Nexis:Fee Revenue & Distribution
Revenue Projections
Based on network activity:Distribution Breakdown
For mature network (1M daily transactions):Fee Optimization Strategies
For Users
Use Lower Priority Fees
Use Lower Priority Fees
Unless urgent, use 0 gwei priority fee. 2-second blocks mean fast inclusion even without tips.
Batch Operations
Batch Operations
Combine multiple operations (stake + claim task) into one transaction to save on base transaction costs.
Monitor Base Fee
Monitor Base Fee
Use fee estimation APIs to transact when base fee is at 1 gwei minimum (typically during low-usage periods).
Optimize Smart Contract Calls
Optimize Smart Contract Calls
Use efficient contract patterns, minimize storage writes, and leverage view functions where possible.
For Developers
Gas Optimization Patterns
Governance Controls
Fee parameters are governance-controlled:Monitoring & Analytics
Real-time Fee Tracking
Public Dashboard
Track live fee metrics:Fee Analytics Dashboard
Real-time fee tracking, vault balances, and historical trends
Frequently Asked Questions
Why are fees higher than Base L2?
Why are fees higher than Base L2?
Nexis is an L3 built on Base L2, adding one layer of coordination overhead. However, fees are optimized for AI agent operations and are still 30,000x cheaper than Ethereum L1.
Can I pay fees in tokens other than NZT?
Can I pay fees in tokens other than NZT?
Not directly. However, you can use meta-transactions or account abstraction to have a relayer pay NZT fees while you pay in USDC or other tokens.
What happens to burned fees?
What happens to burned fees?
Burned fees are sent to address 0x000…dEaD and permanently removed from circulation, creating deflationary pressure on NZT supply.
Can base fee go below 1 gwei?
Can base fee go below 1 gwei?
No. 1 gwei is the hardcoded minimum to prevent spam and ensure economic security. Governance can adjust this minimum via proposal.
How often do vaults distribute funds?
How often do vaults distribute funds?
BaseFeeVault distributes when balance exceeds threshold (typically every 24 hours). Sequencer and L1 vaults distribute as needed for operations.
What if L1 vault runs out of funds?
What if L1 vault runs out of funds?
Sequencer can temporarily subsidize L1 costs. Governance can also adjust fee split to allocate more to L1 vault if data costs spike.
Additional Resources
Tokenomics Overview
High-level economics and value accrual
Staking Rewards
Earn from fee distribution through staking
Fee Analytics
Live fee tracking and historical data
Gas Optimization Guide
Tips for minimizing transaction costs
Cost Efficient AI Infrastructure: Nexis fees are designed to enable economically viable AI agent operations while maintaining network security and sustainability.