{"sample":true,"note":"Static example of what /arb/gas-history returns; not live data and not charged. Call without sample=1 and pay $0.01 with any x402 client for a live result.","tool":"/arb/gas-history","price":"$0.01","example":{"chain":"Arbitrum One","chainId":42161,"fromBlock":123456770,"toBlock":123456789,"blocks":20,"baseFeeGwei":{"low":0.011,"average":0.012,"high":0.014,"latest":0.012,"next":0.012},"priorityFeeGwei":{"p10":0.0005,"p50":0.001,"p90":0.01},"history":[{"block":123456789,"baseFeeGwei":0.012,"gasUsedRatio":0.48,"priorityFeeGwei":[0.0005,0.001,0.01]}]}}