Track live EVM gas fees across Ethereum, Base, Polygon, and Arbitrum using free public RPC endpoints with no API key required. Classifies current gas as low,...
1 installs
Coding
Gas Tracker
Try itMonitor current Ethereum gas prices (Slow/Standard/Fast/Instant tiers) with Gwei values and estimated confirmation times. Use when user asks about ETH gas pr...
What it does
Monitor current Ethereum gas prices (Slow/Standard/Fast/Instant tiers) with Gwei values and estimated confirmation times. Use when user asks about ETH gas prices, wants to check if network is congested, or set gas alerts for transactions. Fetches from public RPC and explorer APIs with automatic fallbacks.
The skill document
Gas Tracker
Monitor Ethereum gas prices in Gwei across Slow / Standard / Fast / Instant tiers.
Quick Use
python scripts/gas_tracker.py
python scripts/gas_tracker.py --fast
python scripts/gas_tracker.py --alert 30
python scripts/gas_tracker.py --json
Output
ETH Gas Tracker | Source: publicnode.com | Block #21345678
Updated: 2026-06-23T07:10:00Z
Tier Gwei ETA
------ ------ -------
Slow 12.0 Gwei ~15 min
Standard 15.0 Gwei ~5 min
Fast 20.0 Gwei ~2 min
Instant 25.0 Gwei ~30 sec
Base Fee: 10.0 Gwei
Status: LOW — Good time to transact
Flags
| Flag | Description |
|---|---|
--slow | Show slow tier only |
--standard | Show standard tier only |
--fast | Show fast tier only |
--instant | Show instant tier only |
--alert GWEI | Exit 0 if standard gas < GWEI, exit 1 if above |
--json | Raw JSON output |
Data Sources
Tries in order: ethereum.publicnode.com RPC → api.blockscout.com → ethgas.info → api.ethgas.watch. Uses the first available.
Alert Script Example
Useful for cron jobs:
python scripts/gas_tracker.py --alert 30 && echo "Gas is low, good to swap!" || echo "Gas too high"
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