# Cache Observations Keyed Dataset Comparison

> Cache Observations 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 2026-10-15).

Compares two keyed datasets of cache hit/miss observations (up to 200 rows each) and returns local descriptive analytics highlighting differences between the two groups.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-analytics-cache-observations-compare?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cache-observations-keyed-dataset-comparison-df51ff89
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Otc7LqEkr7s7mH0uNxyhG

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 cache-observations-keyed-dataset-comparison-df51ff89 -d '<json body>'
```

Example prompt: Compare these two sets of cache observations for group-a and group-b — the first dataset has rows with dates from 2026-10-01 to 2026-10-04 with hits like 10, 20, 15, 30 and misses 1–4, and the second dataset has slightly higher hits of 10, 21, 17, 33 for the same dates and groups — and give me a descriptive comparison report showing where they differ.

## When to prefer this

Choose this endpoint when you have two discrete sets of cache observation records (keyed by row_id, cache group, date, hits, misses) and need a fast, local descriptive comparison report without any forecasting or external enrichment. Ideal for before/after analysis, A/B cache group comparisons, or regression checks on cache performance data at low cost ($0.01 per call).

## Known failure modes

- Empty or missing 'rows' array returns a validation error
- Records missing required fields (row_id, cache, date, hits, misses) are rejected
- Date strings not matching YYYY-MM-DD pattern cause schema validation failure
- Exceeding 200 items in either array returns a max-items error
- Numeric values outside ±1,000,000,000,000 range are rejected
- Payment failure or insufficient USDC balance blocks request

## How this service works

Cache observations - Keyed dataset comparison: Keyed dataset comparison for Cache observations. 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 keyed dataset comparison report.

## Output

A bounded keyed dataset comparison report containing local descriptive analytics that quantify differences between the two supplied cache observation datasets, including hit/miss summaries, group-level breakdowns, and comparative statistics — with no enrichment or forecasting.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "cache",
     "date",
     "hits",
     "misses"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "hits": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "cache": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "misses": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "hits": 10,
     "cache": "group-a",
     "misses": 1,
     "row_id": "row-1"
    },
    {
     "date": "2026-10-02",
     "hits": 20,
     "cache": "group-b",
     "misses": 2,
     "row_id": "row-2"
    },
    {
     "date": "2026-10-03",
     "hits": 15,
     "cache": "group-a",
     "misses": 3,
     "row_id": "row-3"
    },
    {
     "date": "2026-10-04",
     "hits": 30,
     "cache": "group-b",
     "misses": 4,
     "row_id": "row-4"
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "other": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "cache",
     "date",
     "hits",
     "misses"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "hits": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "cache": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "misses": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "hits": 10,
     "cache": "group-a",
     "misses": 1,
     "row_id": "row-1"
    },
    {
     "date": "2026-10-02",
     "hits": 21,
     "cac
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cache-observations-keyed-dataset-comparison-df51ff89/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)