# Motion Capture Analytics — Category Frequencies & Secondary-Measure Weighted Mean

> Motion Capture Analytics — Category Frequencies & Secondary-Measure Weighted Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Computes category frequencies and a secondary-measure weighted mean for motion capture records (frame_count, missing_frames) across up to 200 rows, returning two independent analytical reports.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-creative-21-109?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/motion-capture-analytics-category-frequencies-secondary-measure-a78a02df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_llNNjT3nZCsEgmVdjZVNj

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 motion-capture-analytics-category-frequencies-secondary-measure-a78a02df -d '<json body>'
```

Example prompt: Analyze these 50 motion capture rows — grouped by asset_group — and give me the category frequencies plus the frame_count-weighted mean of missing_frames for each group.

## When to prefer this

Choose this endpoint when you need two complementary views of a motion capture dataset in a single paid call: how often each asset group appears (category frequencies) and the numeric weight-adjusted average of a chosen measure (frame_count or missing_frames). It is ideal for animation pipeline QA, session reporting, and asset coverage audits where you already have the data locally and need fast, offline-style aggregation without any external API dependency. Prefer it over generic analytics services when your data fits the mocap schema and you need both reports for $0.01.

## Known failure modes

- Fewer than 1 row submitted — minimum item count violation
- More than 200 rows submitted — exceeds maxItems limit
- Invalid date format (not YYYY-MM-DD) — pattern validation failure
- Missing required fields (row_id, asset_group, date, frame_count, missing_frames) — schema validation error
- Invalid field enum value (not frame_count or missing_frames) — rejected input
- Null numeric values for all rows in selected field — weighted mean undefined
- Payment not included or insufficient — x402 payment required error

## How this service works

Motion capture — Category frequencies + Secondary-measure weighted mean: Category frequencies + Secondary-measure weighted mean for supplied motion capture records (frame_count, missing_frames). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Returns two independent reports: (1) a frequency count of each asset_group category across the submitted rows, and (2) a weighted mean of the selected secondary measure (frame_count or missing_frames) using the paired numeric field as weights — all computed locally with no external lookups.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/motion-capture-analytics-category-frequencies-secondary-measure-a78a02df/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)