PRD: Gas Fee Optimizer
Summary
One-liner: Predict optimal gas prices and timing to minimize blockchain transaction costs
Domain: Cryptocurrency / Blockchain / Transaction Optimization
Users: Traders, DeFi Users, NFT Collectors, Protocol Developers
Problem Statement
Blockchain transaction fees can vary dramatically based on:
- Network congestion (pending transaction volume)
- Time of day/week (weekends often cheaper)
- Block space competition (NFT mints, token launches)
- Base fee dynamics (EIP-1559 mechanisms)
Users often overpay for gas or have transactions stuck due to poor fee estimation. Without proper tools, users either:
- Pay excessive fees for fast confirmation
- Set fees too low and wait hours/days
- Miss optimal timing windows for cheap transactions
User Stories
As a DeFi user, I want to know the best time to make my swap, so I can minimize transaction costs.
- Acceptance: Shows hourly gas trends, recommends optimal timing windows
As an NFT collector, I want gas alerts when fees drop below threshold, so I can mint at low cost.
- Acceptance: Configurable threshold alerts, historical low comparisons
- Note: Alerting feature planned for v2.0. Current version supports on-demand price checks.
As a trader, I want accurate gas estimates for different confirmation speeds, so I can choose cost vs speed.
- Acceptance: Shows slow/standard/fast/instant with estimated times and costs
As a protocol developer, I want to understand gas trends for my contracts, so I can advise users.
- Acceptance: Gas estimation for specific contract calls, historical analysis
Functional Requirements
- REQ-1: Fetch real-time gas prices from multiple sources
- REQ-2: Analyze historical gas patterns (hourly, daily, weekly)
- REQ-3: Recommend optimal transaction timing
- REQ-4: Estimate gas cost for standard operations (transfer, swap, mint)
- REQ-5: Alert when gas drops below user-defined threshold (planned for v2.0)
- REQ-6: Support multiple chains (Ethereum, Polygon, Arbitrum, etc.)
- REQ-7: Calculate USD cost of transactions
API Integrations
| API |
Purpose |
Auth |
| Ethereum RPC |
Real-time gas prices |
RPC URL |
| Etherscan Gas Tracker |
Gas oracle |
API key (free) |
| Blocknative |
Gas predictions |
API key (free tier) |
| CoinGecko |
ETH/MATIC price for USD conversion |
No auth |
Success Metrics
- Gas recommendations accurate within 10% of optimal
- Historical pattern detection with 80%+ accuracy
- Support for at least 5 major EVM chains
- Real-time updates with < 5 second lag
Non-Goals
- Automated transaction submission
- Gas token (CHI, GST2) optimization
- Flashbots/MEV bundle submission
- Layer 2 bridging cost optimization
1---2name: 027-prd-19e1813c3description: PRD: Gas Fee Optimizer4---5# PRD: Gas Fee Optimizer67## Summary8**One-liner**: Predict optimal gas prices and timing to minimize blockchain transaction costs9**Domain**: Cryptocurrency / Blockchain / Transaction Optimization10**Users**: Traders, DeFi Users, NFT Collectors, Protocol Developers1112## Problem Statement1314Blockchain transaction fees can vary dramatically based on:15- Network congestion (pending transaction volume)16- Time of day/week (weekends often cheaper)17- Block space competition (NFT mints, token launches)18- Base fee dynamics (EIP-1559 mechanisms)1920Users often overpay for gas or have transactions stuck due to poor fee estimation. Without proper tools, users either:21- Pay excessive fees for fast confirmation22- Set fees too low and wait hours/days23- Miss optimal timing windows for cheap transactions2425## User Stories26271. **As a DeFi user**, I want to know the best time to make my swap, so I can minimize transaction costs.28 - Acceptance: Shows hourly gas trends, recommends optimal timing windows29302. **As an NFT collector**, I want gas alerts when fees drop below threshold, so I can mint at low cost.31 - Acceptance: Configurable threshold alerts, historical low comparisons32 - *Note: Alerting feature planned for v2.0. Current version supports on-demand price checks.*33343. **As a trader**, I want accurate gas estimates for different confirmation speeds, so I can choose cost vs speed.35 - Acceptance: Shows slow/standard/fast/instant with estimated times and costs36374. **As a protocol developer**, I want to understand gas trends for my contracts, so I can advise users.38 - Acceptance: Gas estimation for specific contract calls, historical analysis3940## Functional Requirements4142- **REQ-1**: Fetch real-time gas prices from multiple sources43- **REQ-2**: Analyze historical gas patterns (hourly, daily, weekly)44- **REQ-3**: Recommend optimal transaction timing45- **REQ-4**: Estimate gas cost for standard operations (transfer, swap, mint)46- **REQ-5**: Alert when gas drops below user-defined threshold *(planned for v2.0)*47- **REQ-6**: Support multiple chains (Ethereum, Polygon, Arbitrum, etc.)48- **REQ-7**: Calculate USD cost of transactions4950## API Integrations5152| API | Purpose | Auth |53|-----|---------|------|54| Ethereum RPC | Real-time gas prices | RPC URL |55| Etherscan Gas Tracker | Gas oracle | API key (free) |56| Blocknative | Gas predictions | API key (free tier) |57| CoinGecko | ETH/MATIC price for USD conversion | No auth |5859## Success Metrics6061- Gas recommendations accurate within 10% of optimal62- Historical pattern detection with 80%+ accuracy63- Support for at least 5 major EVM chains64- Real-time updates with < 5 second lag6566## Non-Goals6768- Automated transaction submission69- Gas token (CHI, GST2) optimization70- Flashbots/MEV bundle submission71- Layer 2 bridging cost optimization
tools-only