# Fleet Fuel Records – Two-Measure Correlation

> Fleet Fuel Records – Two-Measure Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).

Computes a statistical correlation between distance_km and fuel_litres across up to 200 fleet fuel records, returning a local descriptive analytics report with no external enrichment or forecasting.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-analytics-fleet-fuel-records-correlation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fleet-fuel-records-two-measure-correlation-19497dfc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cB9jWYzPYOLHWTWt4Z4A9

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fleet-fuel-records-two-measure-correlation-19497dfc -d '<json body>'
```

Example prompt: I have 50 fleet fuel records — each with a vehicle ID, date, distance in km, and fuel in litres — can you run a two-measure correlation report on them to see how strongly distance and fuel usage are related?

## When to prefer this

Choose this endpoint when you have raw fleet fuel records (up to 200 rows) with distance and fuel fields and want a quick, inexpensive ($0.01 USDC) local correlation statistic without needing external data enrichment, forecasting, or machine learning. Ideal for fleet operations teams doing routine descriptive analytics or audits. Prefer alternatives if you need more than 200 rows, multi-measure analysis, predictive modeling, or data from external sources.

## Known failure modes

- Fewer than 1 row submitted — request rejected
- More than 200 rows submitted — exceeds maxItems limit
- Missing required fields (row_id, vehicle, date, distance_km, fuel_litres) in any row — schema validation error
- Invalid date format (not YYYY-MM-DD) — pattern validation failure
- Non-numeric or out-of-range values for distance_km or fuel_litres — schema rejection
- Payment not fulfilled via x402 protocol — 402 response, no report returned
- All fuel_litres or distance_km values are null — correlation cannot be computed

## How this service works

Fleet fuel records - Two-measure correlation: Two-measure correlation for Fleet fuel records. Up to 200 supplied typed records. Local descriptive analytics; no enrichment or forecast. One of 25 new profiles across 20 shared operations in this industry. 0.01 USDC includes one bounded two-measure correlation report.

## Output

A bounded two-measure correlation report for the submitted fleet fuel records, including a correlation coefficient (and associated descriptive statistics) between distance_km and fuel_litres across all supplied rows. No external enrichment, forecasting, or predictions are included — purely local descriptive analytics derived from the submitted data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "vehicle",
     "date",
     "distance_km",
     "fuel_litres"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "vehicle": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "distance_km": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "fuel_litres": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "vehicle": "group-a",
     "distance_km": 10,
     "fuel_litres": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "vehicle": "group-b",
     "distance_km": 20,
     "fuel_litres": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "vehicle": "group-a",
     "distance_km": 15,
     "fuel_litres": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "vehicle": "group-b",
     "distance_km": 30,
     "fuel_litres": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fleet-fuel-records-two-measure-correlation-19497dfc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)