optimizing-gas-fees
Checks real-time gas prices, estimates transaction costs, and identifies optimal timing for executing on-chain operations.
Install
mkdir -p .claude/skills/optimizing-gas-fees && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/6614" && unzip -o skill.zip -d .claude/skills/optimizing-gas-fees && rm skill.zipInstalls to .claude/skills/optimizing-gas-fees
Activation
This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.
Optimize blockchain gas costs by analyzing prices, patterns, and timing.Key capabilities
- →Fetch real-time gas prices across multiple chains
- →Estimate transaction costs in ETH and USD
- →Analyze historical hourly and daily gas patterns
- →Predict future gas prices for specific hours
- →Compare gas fees across different blockchains
How it works
The skill utilizes Python scripts to query RPC endpoints for real-time gas metrics and historical block data. It processes this data to provide cost estimations and predictive analysis for various blockchain operations.
Inputs & outputs
When to use optimizing-gas-fees
- →Estimate gas costs before initiating transactions
- →Find optimal windows for low-cost token swaps
- →Compare gas fees across different chains
- →Automate monitoring of gas price spikes
About this skill
Optimizing Gas Fees
Overview
Gas fee optimization skill that:
- Fetches real-time gas prices from multiple sources
- Estimates transaction costs in ETH and USD
- Analyzes historical patterns to find optimal timing
- Predicts future gas prices
- Compares gas across multiple chains
Prerequisites
- Python 3.8+ with requests library
- Network access to RPC endpoints
- Optional:
ETHERSCAN_API_KEYfor higher rate limits - Optional: Custom RPC URLs via environment variables
Instructions
-
Check current gas prices (optionally for a specific chain):
cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py current cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py current --chain polygon -
Estimate transaction cost for known operations or custom gas limits (available operations:
eth_transfer,erc20_transfer,erc20_approve,uniswap_v2_swap,uniswap_v3_swap,sushiswap_swap,curve_swap,nft_mint,nft_transfer,opensea_listing,aave_deposit,aave_withdraw,compound_supply,compound_borrow,bridge_deposit):cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py estimate --operation uniswap_v2_swap --all-tiers cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py estimate --gas-limit 150000 --tier fast # 150000 = configured value -
Find the optimal transaction window with lowest expected gas:
cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py optimal -
View gas patterns (hourly or daily):
cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py patterns cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py patterns --daily -
Predict future gas prices for a given hour:
cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py predict --time 14 -
Compare gas prices across multiple chains:
cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py compare -
View base fee history for recent blocks:
cd ${CLAUDE_SKILL_DIR}/scripts && python3 gas_optimizer.py history --blocks 50
Output
- Current: Base fee, priority fee, and tier prices (slow/standard/fast/instant)
- Estimate: Gas cost in native token and USD for each tier
- Patterns: Historical hourly/daily patterns with low-gas markers
- Optimal: Recommended transaction window with expected savings
- Predict: Gas forecast for specific time with confidence
- Compare: Side-by-side gas prices across chains
Supported Chains
| Chain | Native Token | Block Time |
|---|---|---|
| Ethereum | ETH | ~12 sec |
| Polygon | MATIC | ~2 sec |
| Arbitrum | ETH | ~0.25 sec |
| Optimism | ETH | ~2 sec |
| Base | ETH | ~2 sec |
Price Tiers
| Tier | Percentile | Confirmation Time |
|---|---|---|
| Slow | 10th | 10+ blocks (~2+ min) |
| Standard | 50th | 3-5 blocks (~1 min) |
| Fast | 75th | 1-2 blocks (~30 sec) |
| Instant | 90th | Next block (~12 sec) |
Error Handling
See ${CLAUDE_SKILL_DIR}/references/errors.md for:
- RPC connection issues
- API rate limiting
- Price feed errors
- Pattern analysis errors
Examples
See ${CLAUDE_SKILL_DIR}/references/examples.md for:
- Quick start commands
- Cost estimation scenarios
- Multi-chain comparison
- Practical workflows
Resources
- EIP-1559 - Fee market specification
- Etherscan Gas Tracker - Reference oracle
- L2Fees - L2 cost comparison
Prerequisites
Limitations
- →Requires network access to RPC endpoints
- →Dependent on RPC connection stability and API rate limits
How it compares
Unlike manual checking of block explorers, this skill automates multi-chain comparisons and provides predictive modeling for optimal transaction timing.
Compared to similar skills
optimizing-gas-fees side by side with the closest alternatives in the catalog.
| Skill | Installs | Updated | Safety | Difficulty |
|---|---|---|---|---|
| optimizing-gas-fees (this skill) | 1 | 27d | Review | Intermediate |
| pdf-processing-pro | 17 | 10mo | Review | Intermediate |
| python-repl | 6 | 4mo | Review | Beginner |
| math-router | 6 | 7mo | Review | Beginner |
Try saying
Example prompts that trigger this skill in your AI assistant.
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