# M2M Trust Pareto Audit – Defect/Waste/Loss/Rework Ranking

> M2M Trust Pareto Audit – Defect/Waste/Loss/Rework Ranking is a paid API for AI agents from energybilltoolkit.co.uk, paid per call via x402, $0.010000/call, status unknown (last checked 2026-09-15).

Performs deterministic Pareto ranking analysis on a list of defect, waste, loss, or rework categories to identify the vital few contributing most to overall issues.

## Facts

- Endpoint: POST https://energybilltoolkit.co.uk/m2m-trust/api/tools/pareto-audit
- Price: $0.010000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/energybilltoolkit-co-uk-7f4ac97c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cSL7lE11CyYKQneZTCT2Y

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 energybilltoolkit-co-uk-7f4ac97c -d '<json body>'
```

Example prompt: Run a Pareto audit on these defect categories for me — scratches: 45, misalignment: 30, wrong label: 12, contamination: 8, broken seal: 5 — and tell me which ones account for 80% of total defects.

## When to prefer this

Use this endpoint when you need a fully deterministic, reproducible Pareto ranking without any AI or stochastic variance — ideal for quality audits, Lean Six Sigma workflows, or any scenario where audit trails require consistent outputs given the same inputs. Prefer it over general-purpose analytics tools when you need structured cumulative-percentage breakdowns conforming to Pareto/80-20 methodology.

## Known failure modes

- Missing or empty category list returns a 400 validation error
- Non-numeric counts or negative values may cause a 422 unprocessable entity error
- All categories with equal counts produce a flat Pareto with no clear vital few
- Single-category input returns trivial 100% result with a warning
- Malformed JSON body returns a 400 parse error

## How this service works

M2M Trust deterministic analysis tool: Pareto ranking for defect, waste, loss or rework categories.

## Output

A deterministically computed Pareto ranking of the input categories, including individual counts, percentage contributions, cumulative percentages, and a classification of which categories fall within the vital-few (typically ~80% of total impact) versus the trivial-many tail.

## Example request

```json
{
 "categories": [
  {
   "count": 45,
   "label": "scratches"
  },
  {
   "count": 30,
   "label": "misalignment"
  },
  {
   "count": 12,
   "label": "wrong_label"
  },
  {
   "count": 8,
   "label": "contamination"
  },
  {
   "count": 5,
   "label": "broken_seal"
  }
 ]
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "categories": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "label",
     "count"
    ],
    "properties": {
     "count": {
      "type": "number",
      "description": "Positive count/value.",
      "exclusiveMinimum": 0
     },
     "label": {
      "type": "string",
      "minLength": 1,
      "description": "Category label."
     }
    },
    "additionalProperties": false
   },
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/energybilltoolkit-co-uk-7f4ac97c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from energybilltoolkit.co.uk](https://www.zero.xyz/host/energybilltoolkit.co.uk/llms.txt)