TOLL

What software pays for, recorded every six hours.

Snapshot
2026-11-01 21:59 UTC
Sweep
daily-2026-10-30 · finished 2026-10-30 13:00 UTC
Listed
52,265

numeric distribution drift derived

api.zfinia.comOtherderived

POST https://api.zfinia.com/x402/v1/numeric-distribution-drift

failabsent from every registry#6 by calls of 15 on this host

0.15 USDC

per call, as the listing declares it on eip155:8453

Compare with anotherEvery figure as JSONCite this page

the price, as of 2026-10-04 21:22 UTC · method

Validation state
fail
as of 2026-10-04 13:10 UTC · method · sweep daily-2026-10-04
Uptime, 7 / 30 / 90 days
— / 50% / 50%
as of 2026-10-04 13:10 UTC · method · 0 of 0 in 7d, 1 of 2 in 30d, 1 of 2 in 90d
Calls, trailing 30 days
1
as of 2026-10-04 21:22 UTC · method
Unique payers, trailing 30 days
1
as of 2026-10-04 21:22 UTC · method
Last called
2026-10-04 08:11 UTC
as of 2026-10-04 21:22 UTC · method
First observed by TOLLderived
2026-10-04
as of 2026-10-04 12:19 UTC · method · observation began 10 September 2026; listings that predate it show that date
Pricederived
0.15 USDC
as of 2026-10-04 21:22 UTC · method · on eip155:8453
Networks
1
as of 2026-10-04 21:22 UTC · method

Counters

2 observations, 1 of them a change, fewer than the 3 a trace needs

How big is this endpoint among the ones like it?

1 call100,000this endpoint
Calls counted in the trailing thirty days across the 4,403 endpoints in Other that carry counters, binned on a logarithmic scale because the range runs over five orders of magnitude. The marked bin is this endpoint, at 1: 3,070 in the category are counted higher and 1,332 lower.

No trace is drawn of this endpoint’s own volume. Its counters have changed 1 time across 2 observations, and 3 changes are the fewest this site will draw a trace through, because two points and a guess are not a series. Every observation is in the JSON.

In words

The sweep of 2026-10-04 found numeric distribution drift unreachable.

TOLL files numeric distribution drift under the "other" category: a POST endpoint on api.zfinia.com, listed in neither registry at the last pull.

numeric distribution drift is priced at 0.15 USDC on Base.

The request to numeric distribution drift is a json body with the fields after, before, columns and quantile_tolerance_fraction.

A response from numeric distribution drift, as declared, includes limits, passed, stable, columns, complete, findings and 2 others.

numeric distribution drift drew a single call from a single payer in the trailing 30 days.

The last call to numeric distribution drift came 29 days before the snapshot, 2026-10-04.

numeric distribution drift shares api.zfinia.com with 14 other listed endpoints and is tied 6th by calls with 10 others.

numeric distribution drift takes 3% of the calls counted across api.zfinia.com.

Most comparable listings in the "other" category, 97%, ask less.

numeric distribution drift sits nearest in price to tiers prototype (api.run402.com) and audit (leftclaw.services) among listings in the "other" category.

The wallet paid by numeric distribution drift is the payee of 179 endpoints across 5 hosts.

The seller's tags on numeric distribution drift are data quality, drift, distribution and monitoring.

numeric distribution drift was missing from the Coinbase registry at the pull of 2026-10-05, confirmed at the pull of 2026-10-05; that is registry presence, not liveness.

Where the sentences above compare this endpoint with others, the comparison is against the index as it stands now, live; the figures above are final.

Payment options as declared

the payment options, as of 2026-10-04 21:22 UTC · method

Every payment option declared on this listing
registrynetworkassetamountschemepay to
Coinbaseeip155:8453USDC0.15 USDCexact0x25e824…6a9608

Preflight checks at the last sweep

the checks, as of 2026-10-04 13:10 UTC · methodendpoint answered HTTP none

  • endpoint_reachable · the endpoint answered at all

Validation history, 90 days

Every sweep that observed this endpoint, newest first.

Validation observations over the last 90 days
observed, UTCstatefailed checkssweep
2026-10-04 13:10 UTCfail1daily-2026-10-04
2026-10-04 12:37 UTCpass0new-after-daily-2026-10-04

Registry presence

Presence in a registry, not liveness of the service (method). Newest first.

  1. absence from Coinbase confirmed, rule v1
  2. absent from Coinbase at this pull
  3. listed in Coinbase

Declared input and output, as listed

From the registry record, not validated by TOLL.the declared schema, as of 2026-10-04 08:11 UTC · method

The input and output block
{
  "input": {
    "body": {
      "after": "latency_ms,amount\n30,100\n60,200\n90,not-a-number\n120,400\n150,500\n",
      "before": "latency_ms,amount\n10,100\n20,200\n30,300\n40,400\n50,500\n",
      "columns": [
        "latency_ms",
        "amount"
      ],
      "quantile_tolerance_fraction": 0.1
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "limits": {
        "maxRows": 5000,
        "maxListed": 200,
        "maxColumns": 64,
        "maxCsvBytes": 262144,
        "maxDatasets": 10,
        "maxFindings": 500,
        "maxCategories": 1000,
        "maxKeyColumns": 4
      },
      "passed": false,
      "stable": false,
      "columns": [
        {
          "after": {
            "max": "150",
            "min": "30",
            "p25": "60",
            "p75": "120",
            "median": "90"
          },
          "moved": [
            "min",
            "p25",
            "median"
          ],
          "before": {
            "max": "50",
            "min": "10",
            "p25": "20",
            "p75": "40",
            "median": "30"
          },
          "column": "latency_ms",
          "null_rate": {
            "after": 0,
            "before": 0
          },
          "numeric_count": {
            "after": 5,
            "before": 5
          }
        },
        {
          "after": {
            "max": "500",
            "min": "100",
            "p25": "200",
            "p75": "500",
            "median": "400"
          },
          "moved": [
            "median",
            "p75"
          ],
          "before": {
            "max": "500",
            "min": "100",
            "p25": "200",
            "p75": "400",
            "median": "300"
          },
          "column": "amount",
          "null_rate": {
            "after": 0,
            "before": 0
          },
          "numeric_count": {
            "after": 4,
            "before": 5
          }
        }
      ],
      "complete": true,
      "findings": [
        {
          "code": "QUANTILE_DRIFT",
          "column": "latency_ms",
          "detail": "latency_ms: min moved from 10 to 30, beyond the 10.0% tolerance.",
          "statistic": "min"
        },
        {
          "code": "QUANTILE_DRIFT",
          "column": "latency_ms",
          "detail": "latency_ms: p25 moved from 20 to 60, beyond the 10.0% tolerance.",
          "statistic": "p25"
        },
        {
          "code": "QUANTILE_DRIFT",
          "column": "latency_ms",
          "detail": "latency_ms: median moved from 30 to 90, beyond the 10.0% tolerance.",
          "statistic": "median"
        }
      ],
      "request_id": "example-request",
      "service_id": "numeric_distribution_drift",
      "assumptions": [
        "Quantiles are read off the exact sorted values, so a large or high-precision amount is never collapsed before the comparison.",
        "Values that are not exactly comparable numbers are excluded from every statistic and the exclusion is reported, because a silently narrowed sample makes every figure below it wrong.",
        "Tolerance is proportional to the earlier value, so a move from 0 to anything is always a finding."
      ],
      "limitations": [
        "Five order statistics per column between the two datasets supplied. This is not a distribution test and carries no significance claim.",
        "stable is true only when both datasets were fully read, every named column was comparable, and nothing moved beyond tolerance."
      ],
      "observed_at": "2026-10-02T00:00:00.000Z",
      "not_examined": [],
      "finding_count": 8,
      "after_row_count": 5,
      "service_version": "1.0.0",
      "before_row_count": 5,
      "columns_compared": 2,
      "findings_by_code": {
        "QUANTILE_DRIFT": 7,
        "NON_NUMERIC_VALUES_PRESENT": 1
      },
      "quantile_tolerance_fraction": 0.1
    }
  }
}
Cite this page

This endpoint is delisted: the page is frozen at its last observation and its live URL is the stable one. Data reuse is under CC BY 4.0 (terms).

Plain text

TOLL, "numeric distribution drift on api.zfinia.com". https://tollindex.com/e/api-zfinia-com-x402-v1-numeric-distribution-drift-80cc24. Accessed [access date].

BibTeX

@misc{toll-e-api-zfinia-com-x402-v1-numeric-distribution-drift-80cc24-2026-11-01,
  author = {TOLL},
  title = {numeric distribution drift on api.zfinia.com},
  howpublished = {\url{https://tollindex.com/e/api-zfinia-com-x402-v1-numeric-distribution-drift-80cc24}},
  year = {2026},
  month = {11},
  note = {Frozen at its last observation, 2026-11-01 21:59 UTC. Accessed [access date].}
}

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