eth_feeHistory

ArbitrumC2

Returns a window of base fees and requested priority-fee percentiles across recent blocks, for building EIP-1559 fee strategies.

Endpoint

POST https://api.1st-node.com/v1/arbitrum/rpc

Parameters

Name	Type	Description
blockCount	QUANTITY	Number of blocks in the requested range.
newestBlock	QUANTITY \| TAG	Highest block of the range.
percentiles	Array	Priority-fee percentiles to sample.

Returns

Object — baseFeePerGas, gasUsedRatio and reward percentiles.

Request

curl https://api.1st-node.com/v1/arbitrum/rpc \
  -H "Authorization: Bearer $ONE_KEY" \
  -H "content-type: application/json" \
  -d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_feeHistory",
  "params": ["0x5", "latest", [25, 50, 75]]
}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_feeHistory",
  "params": ["0x5", "latest", [25, 50, 75]]
}

Response

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": { "oldestBlock": "0x12d4e26", "baseFeePerGas": ["0x…"], "reward": [["0x…"]] }
}

More chain methods on Arbitrum

eth_gasPrice eth_maxPriorityFeePerGas eth_chainId

← Arbitrum API

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