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Gas

Gas resource provides operations for querying gas prices and fee information.

Operations​

Get Gas Price​

Retrieve the current legacy gas price.

Required Credentials: Ethereum RPC

Parameters: None

Example Output:

{
  "gasPrice": "20000000000"
}

Get Fee History​

Analyze historical fee data for EIP-1559 optimization.

Required Credentials: Ethereum RPC

Parameters:

  • Block Count (required): Number of blocks to query
  • Newest Block (optional): Starting block (default: latest)
  • Reward Percentiles (optional): Array of percentiles to calculate

Use Cases:

  • Optimize EIP-1559 gas fees
  • Analyze fee trends
  • Predict optimal transaction timing

Example:

{
  "blockCount": 10,
  "rewardPercentiles": [25, 50, 75]
}

Output:

{
  "oldestBlock": "18500000",
  "baseFeePerGas": ["20000000000", "21000000000", "20500000000"],
  "gasUsedRatio": [0.5, 0.6, 0.55],
  "reward": [
    ["1000000000", "1500000000", "2000000000"],
    ["1100000000", "1600000000", "2100000000"],
    ["1050000000", "1550000000", "2050000000"]
  ]
}

Estimate Max Priority Fee​

Estimate the maximum priority fee for transactions.

Required Credentials: Ethereum RPC

Parameters: None

Example Output:

{
  "maxPriorityFeePerGas": "2000000000"
}

Common Use Cases​

Dynamic Fee Calculation​

[Trigger] → [Get Fee History] → [Calculate Optimal Fee] → [Send Transaction]

Gas Price Monitoring​

[Schedule Trigger] → [Get Gas Price] → [Check Threshold] → [Alert]

Tips​

  • EIP-1559: Most modern networks use EIP-1559 pricing (base fee + priority fee)
  • Legacy Gas: Some networks still use legacy gas pricing
  • Fee History: Use for smart fee estimation based on network conditions
  • Network Congestion: Fees increase during high network usage