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Optimism Gas Price History
x402
Optimism Gas Price History is a paid API for AI agents from agent-data-tools.revmesh2074.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Returns per-block base fee, gas usage ratio, and percentile priority fees for the last N blocks on Optimism, plus window-level fee summaries.
Price / call$0.01
Success—
StatusUnknown
How this service works
Gas price history on Optimism (eth_feeHistory): base fee in gwei for each of the last N blocks (5-100, default 20), how full each block was, and the 10th, 50th and 90th percentile priority fees, with the low, average and high base fee over the window. Use to judge whether fees are rising, pick a priority fee or time a transaction; for the current price alone use op_gas.
Output
A JSON object containing: an array of per-block entries (block number, base fee in gwei, gas used ratio, and [p10, p50, p90] priority fees), the block range covered, chain name and ID, and aggregate summaries — low/average/high/latest/next base fee in gwei, plus window-level p10/p50/p90 priority fees.
Example use cases
Timing an Optimism DeFi transaction
“Check the Optimism gas fee history for the last 30 blocks and tell me if fees are rising or falling — I want to know whether to wait or submit my DeFi swap now.”
Choosing a priority fee for a wallet app
“Get the Optimism fee history for the past 20 blocks so I can see the 10th, 50th, and 90th percentile priority fees and suggest a good tip for a standard transfer.”
Monitoring Optimism network congestion
“Fetch 100 blocks of Optimism gas history and show me how full each block has been and what the high and low base fees were over that window — I'm trying to spot congestion patterns.”
Technical details
Endpoint
GEThttps://agent-data-tools.revmesh2074.workers.dev/op/gas-history?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need historical context about Optimism gas fees — fee trends, block congestion levels, or a basis for choosing a priority fee. If you only need the current gas price on Optimism, prefer the op_gas endpoint instead. Choose this over generic Ethereum gas tools when the user specifically wants Optimism L2 fee data.
Side effects
- blocks parameter out of range (must be 5-100) — likely returns a 400 or validation error
- RPC node unavailable or rate-limited — may return 5xx or timeout
- Payment not provided or insufficient credits — returns 402 Payment Required
- Blocks value not an integer — schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| blocks | integer | How many recent blocks, 5-100 (default 20) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| chain | string | |
| blocks | number | |
| chainId | number | |
| history | array | |
| toBlock | number | |
| fromBlock | number | |
| baseFeeGwei | object | |
| priorityFeeGwei | object |
Tags
x402
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