What Agents Buy.

• This looks like gas price data, which is available free from the chain's own base fee, a free read. A paid call buys packaging or convenience, not exclusive data, so confirm you need it before paying.

Grades

No purchase-based grade yet. Everything below was measured, by paying this seller or by sweeping the chain, and none of it is editorial.

Accuracy against a primary source

• accurate Gas price (Base): returned 0.005, off by +0 gwei against Base chain latest block · $0.005/call · tx

Measured 2026-08-17 by paying this seller and comparing the number it returned with a source it cannot resell. A dated sample, not a live guarantee. Full corpus at /categories.

Did it deliver what it promised?

3 of 3 endpoints we paid returned everything their own published schema promised.

• delivered returned all 11 promised fields /gas/cheapest-window · 2,208ms · 15 bonus field(s)
  Real response shape

  {
   "chain": "string",
   "chainId": "integer",
   "requestedHours": "integer",
   "units": "string",
   "hasDailyCycle": "boolean",
   "recommendation": "string",
   "savingsPercent": "number",
   "daysObserved": "number",
   "confidence": "string",
   "hourlyAverages": {
    "array_of": {
     "hourUtc": "integer",
     "samples": "integer",
     "avgGasPrice": "number"
    }
   },
   "cheapestHourUtc": "integer",
   "priciestHourUtc": "integer",
   "hoursObserved": "integer",
   "coverage": {
    "samples": "integer",
    "hoursCovered": "number",
    "oldestSample": "string",
    "newestSample": "string",
    "sampleIntervalSeconds": "integer",
    "retentionHours": "integer",
    "totalSamplesTaken": "integer",
    "durable": "boolean",
    "lastError": "null"
   },
   "fetchedAt": "string"
  }

  Types only, verified from a real paid call. Values discarded.

• delivered returned all 8 promised fields /gas · 2,671ms · 2 bonus field(s)
  Real response shape

  {
   "chain": "string",
   "chainId": "string",
   "rpcSource": "string",
   "blockNumber": "string",
   "units": {
    "fees": "string",
    "cost": "string"
   },
   "baseFeePerGas": "string",
   "priorityFeePerGas": {
    "low": "string",
    "medium": "string",
    "high": "string"
   },
   "gasPrice": "string",
   "estimatedTransferCost": {
    "gasLimit": "string",
    "basis": "string",
    "gwei": "string",
    "eth": "string"
   },
   "fetchedAt": "string"
  }

  Types only, verified from a real paid call. Values discarded.

• delivered returned all 8 promised fields /gas/compare · 6,652ms
  Real response shape

  {
   "gasLimit": "string",
   "basis": "string",
   "chains": {
    "array_of": {
     "chain": "string",
     "label": "string",
     "chainId": "string",
     "blockNumber": "string",
     "baseFeePerGas": "string",
     "gasPrice": "string",
     "estimatedCost": "string"
    }
   },
   "cheapest": "string",
   "baseRank": "string",
   "baseVsEthereum": "string",
   "unavailable": "string",
   "fetchedAt": "string"
  }

  Types only, verified from a real paid call. Values discarded.

This is a paid delivery check: we called the endpoint with its own advertised input and compared the response against its own advertised output. It is the one thing free probing cannot see.

Verifiable receipts

4 paid calls to this host are recorded as tamper-evident receipts, all delivered or graded accurate. Each can be re-verified independently, from the archived bytes up.

{
 "baseFeePerGas": "string",
 "blockNumber": "string",
 "chain": "string",
 "chainId": "string",
 "estimatedTransferCost": {
  "basis": "string",
  "eth": "string",
  "gasLimit": "string",
  "gwei": "string"
 },
 "fetchedAt": "string",
 "gasPrice": "string",
 "priorityFeePerGas": {
  "high": "string",
  "low": "string",
  "medium": "string"
 },
 "rpcSource": "string",
 "units": {
  "cost": "string",
  "fees": "string"
 }
}

{
 "chain": "string",
 "chainId": "integer",
 "cheapestHourUtc": "integer",
 "confidence": "string",
 "coverage": {
  "durable": "boolean",
  "hoursCovered": "number",
  "lastError": "null",
  "newestSample": "string",
  "oldestSample": "string",
  "retentionHours": "integer",
  "sampleIntervalSeconds": "integer",
  "samples": "integer",
  "totalSamplesTaken": "integer"
 },
 "daysObserved": "number",
 "fetchedAt": "string",
 "hasDailyCycle": "boolean",
 "hourlyAverages": {
  "array_of": {
   "avgGasPrice": "number",
   "hourUtc": "integer",
   "samples": "integer"
  }
 },
 "hoursObserved": "integer",
 "priciestHourUtc": "integer",
 "recommendation": "string",
 "requestedHours": "integer",
 "savingsPercent": "number",
 "units": "string"
}

{
 "baseRank": "string",
 "baseVsEthereum": "string",
 "basis": "string",
 "chains": {
  "array_of": {
   "baseFeePerGas": "string",
   "blockNumber": "string",
   "chain": "string",
   "chainId": "string",
   "estimatedCost": "string",
   "gasPrice": "string",
   "label": "string"
  }
 },
 "cheapest": "string",
 "fetchedAt": "string",
 "gasLimit": "string",
 "unavailable": "string"
}

The full record and the format are at /receipts.

What it sells

3 endpoints listed, priced $0.0050 to $0.0200, settling on Base.

• $0.0050 Live Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for
• $0.0100 Live gas cost comparison across Base, OP Mainnet, Arbitrum One, and Ethereum in one call, ranked cheapest first.
• $0.0200 Cheapest hours of day to transact on Base, from collected gas history: hourly averages in UTC ranked cheapest first, p

First seen in the registry on 2026-08-04.

Grades here come from paying this service and recording what happened, or from calling it where it is free. Settlement figures are swept daily from Base USDC Transfer logs. Nothing on this page is sponsored.

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