# Motion Capture Category Frequencies and Keyed Dataset Comparison

> Motion Capture Category Frequencies and Keyed Dataset Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-25).

Analyzes motion capture records to produce category frequency distributions and a row-keyed comparison between two supplied datasets of up to 200 rows each.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-creative-21-111?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/motion-capture-category-frequencies-and-keyed-dataset-comparison-ddf37483
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MPD5sg48fF-k2et6S1kFO

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-category-frequencies-and-keyed-dataset-comparison-ddf37483 -d '<json body>'
```

Example prompt: I have two sets of motion capture records — a baseline and a revised batch — each with up to 50 rows including row_id, asset_group, date, frame_count, and missing_frames. Can you run a category frequency analysis on the first set and a keyed comparison between the two so I can see how asset group distributions and frame counts changed?

## When to prefer this

Choose this endpoint when you have motion capture records with asset_group and frame metadata and need both a categorical frequency breakdown and a row-keyed diff between two datasets in a single API call. It is especially useful for QC workflows where you want to audit capture completeness and compare session runs without any external data enrichment or prediction. Best suited for batches up to 200 rows where local, deterministic analysis is sufficient.

## Known failure modes

- Exceeding 200 rows in either dataset returns a validation error
- Missing required fields (row_id, asset_group, date, frame_count, missing_frames) causes rejection
- Invalid date format (non-YYYY-MM-DD) triggers a pattern validation error
- Mismatched row_ids between the two datasets may result in unmatched rows in the comparison report
- Null numeric values are allowed but may affect summary statistics

## How this service works

Motion capture — Category frequencies + Keyed dataset comparison: Category frequencies + Keyed dataset comparison 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 analytical reports: (1) a category frequency table showing how often each distinct value of categorical fields (e.g. asset_group) appears across the supplied rows, and (2) a keyed dataset comparison report that matches records by row_id between the two supplied datasets and highlights differences in numeric fields such as frame_count and missing_frames. No external lookups or predictions are made; all analysis is performed locally on the supplied data.

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/motion-capture-category-frequencies-and-keyed-dataset-comparison-ddf37483/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)