L2 Gas Price Pulse

Keyless multi-L2 gas-price pulse (Base, Optimism, Arbitrum, Polygon via public L2 JSON-RPC, no key): per-chain gasPrice/priority-fee/base-fee in gwei + latest block, one fallback host per chain, stateful KVS run-over-run gas/base-fee % deltas + spike & host-flip alerts. Read-only public data.

What you get

Every run writes a dataset with one row per record:

{
  "kind": "l2-gas-pulse",
  "ts": "2026-09-24T00:35:01Z",
  "firstRun": true,
  "prevRunTs": null,
  "count": 4,
  "chains": [
    {
      "chain": "base",
      "hostServed": "https://mainnet.base.org",
      "blockNumber": 51710376,
      "blockTimestamp": "2026-09-24T00:34:59Z",
      "gasPriceGwei": 0.006,
      "maxPriorityFeePerGasGwei": 0.001,
      "baseFeeGwei": 0.005,
      "blobGasUsed": 6246044,
      "error": null,
      "note": null
    },
    {
      "chain": "optimism",
      "hostServed": "https://mainnet.optimism.io",
      "blockNumber": 157305661,
      "blockTimestamp": "2026-09-24T00:34:59Z",
      "gasPriceGwei": 0.001000758,
      "maxPriorityFeePerGasGwei": 0.001,
      "baseFeeGwei": 7.58e-07,
      "blobGasUsed": 4315200,
      "error": null,
      "note": null
    },
    {
      "chain": "arbitrum",
      "hostServed": "https://arb1.arbitrum.io/rpc",
      "blockNumber": 508284984,
      "blockTimestamp": "2026-09-24T00:34:59Z",
      "gasPriceGwei": 0.020108,
      "maxPriorityFeePerGasGwei": 0.0,
      "baseFeeGwei": 0.020096,
      "blobGasUsed": null,
      "error": null,
      "note": null
    },
    {
      "chain": "polygon",
      "hostServed":

Input

{
  "chains": "base,optimism,arbitrum,polygon"
}

Field	Type	Description
chains	string	Chains: the chains parameter. Default: "base,optimism,arbitrum,polygon".

Use cases

• Monitor on a schedule — run this Actor on a timer and get a fresh, normalized snapshot every time; diff the datasets to see what changed.
• Feed a dashboard or model — clean, one-JSON-item-per-record output is ready to pipe into a spreadsheet, database, or LLM prompt without any post-processing.
• Research & due diligence — pull a structured set of records for a topic, name, or window without scraping the public source by hand.

Limits & notes

• No API key, no login: it only reads public endpoints/feeds. If the upstream source is degraded, the run still succeeds and returns an honest status item instead of failing.
• Results reflect what the public source returned at run time (top-N windows, newest-first where applicable).
• Pay-per-event via synthetic events: each default-dataset item is billed through apify-default-dataset-item ($0.001 per item), plus apify-actor-start.
• Free to try on the free plan; PPE pricing applies to paid-plan users.

Categories

OTHER