eth_feeHistory | Galleon⁸ Docs

curl -X POST https://node-api-docs-proxy.galleon8.workers.dev/{apiKey} \
     -H "Content-Type: application/json" \
     -d '{
  "jsonrpc": "2.0",
  "method": "eth_feeHistory",
  "params": [
    "0x4",
    "latest",
    [
      10,
      50,
      90
    ]
  ],
  "id": 1
}'

{
  "jsonrpc": "2.0",
  "id": "1",
  "result": {
    "oldestBlock": "0x10d4c",
    "baseFeePerGas": [
      "0x3b9aca00",
      "0x3c6bf526",
      "0x3d2f31ac",
      "0x3e1d2c80",
      "0x3f0f4a40"
    ],
    "gasUsedRatio": [
      0.42,
      0.55,
      0.61,
      0.49
    ],
    "reward": [
      [
        "0x77359400",
        "0x9502f900",
        "0xb2d05e00"
      ],
      [
        "0x77359400",
        "0x9502f900",
        "0xb2d05e00"
      ],
      [
        "0x77359400",
        "0x9502f900",
        "0xb2d05e00"
      ],
      [
        "0x77359400",
        "0x9502f900",
        "0xb2d05e00"
      ]
    ]
  }
}

Returns transaction base fee per gas and effective priority fee per gas for the requested/supported block range.

Request

This endpoint expects an object.

blockCountstringRequiredformat: "^0x(?:0|[1-9a-fA-F][a-fA-F0-9]*)$"

Number of blocks in the requested fee history.

newestBlockanyRequired

Newest block number or tag for the fee history range.

rewardPercentileslist of doublesOptional

Optional priority fee percentiles to sample for each block.

Response

Historical fee data for the requested block range.

oldestBlockstringformat: "^0x(?:0|[1-9a-fA-F][a-fA-F0-9]*)$"

Hex-encoded integer quantity.

baseFeePerGaslist of strings

gasUsedRatiolist of doubles

rewardlist of lists of stringsOptional