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Gas Price Oracle

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Multi-chain gas prices for Ethereum, Base, Arbitrum, Optimism

Pricing

Pay per usage

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Developer

Yunare Maia

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a day ago

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Multi-chain Gas Price Oracle

Real-time gas prices for 8 EVM chains with fallback redundancy. Built for AI agents, DeFi apps, and transaction optimization.

Features

8 chains: Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche, Gnosis
Multiple sources: Blocknative, GasNow (ETH), and redundant RPCs (4x Ethereum, 3x Base, 2x others)
EIP-1559 aware: base fee + priority fee + max fee per chain
L2 data fees: estimated L1 data fee for Arbitrum, Optimism, Base
Gas spike alerts: webhook notifications on fee spikes or rapid changes
Block number: included for transaction planning

Input

Field	Type	Default	Description
`chains`	array	`["ethereum","base","arbitrum","optimism","polygon"]`	Chains to monitor
`intervalSeconds`	int	`30`	Check interval (15s - 300s)
`webhookUrl`	string	—	Webhook URL for gas spike alerts
`maxRuns`	int	`1`	Max checks (default 1 = run once and finish; set higher for continuous monitoring)
`gasSpikeThresholdGwei`	number	`50`	Gas fee (gwei) to trigger alert
`includeL2Fees`	bool	`true`	Include L1 data fee estimates for L2s

Example Input

{
  "chains": ["ethereum", "base", "arbitrum", "optimism", "polygon"],
  "intervalSeconds": 30,
  "gasSpikeThresholdGwei": 50,
  "includeL2Fees": true
}

Output (dataset)

{
  "timestamp": "2026-08-06T01:48:40.458Z",
  "chain": "ethereum",
  "base_fee_gwei": 12.34,
  "priority_fee_gwei": 1.2,
  "max_fee_gwei": 13.54,
  "l1_data_fee_gwei": null,
  "block_number": 21045231,
  "source": "rpc"
}

Use Cases

AI agents: check gas before submitting transactions
Bridging: find cheapest time to bridge assets
Trading bots: optimize transaction timing
Monitoring: alert on gas spikes affecting dApp users

Pricing

Free for demo runs. Production runs billed per Apify usage units.

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