Gas tracker & alerts
21 EVM chains via public RPCs (eth_feeHistory), Ethereum blob base fee (EIP-4844) and Bitcoin fees from mempool.space. Refreshed hourly.
Gas alertbelowgwei
Checks the chain's public RPC from your browser every 30 s while this tab is open and fires a desktop notification. Nothing is stored server-side.
| Chain | Base fee | Priority (p50) | Fast (p90) | eth_gasPrice | Block fullness | Base fee, last 20 blocks |
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