# Cache Observations Grouped Numeric Summary

> Cache Observations Grouped Numeric Summary is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Computes grouped descriptive statistics (numeric summary) for cache hit/miss observations, grouped by cache name, from up to 200 supplied records.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-analytics-cache-observations-group-summary?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cache-observations-grouped-numeric-summary-9edf3c53
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_al7L9_iPSyB03F7S2hDIw

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-grouped-numeric-summary-9edf3c53 -d '<json body>'
```

Example prompt: I have 4 cache observation records across two groups — group-a on 2026-10-01 with 10 hits and 1 miss (row-1), group-b on 2026-10-02 with 20 hits and 2 misses (row-2), group-a on 2026-10-03 with 15 hits and 3 misses (row-3), and group-b on 2026-10-04 with 30 hits and 4 misses (row-4) — can you give me a grouped numeric summary report for the hits field?

## When to prefer this

Choose this endpoint when you have raw cache observation records (hits/misses per cache name per date) and need local grouped descriptive analytics without any external data enrichment, forecasting, or ML — particularly when you want a cheap ($0.01 USDC), deterministic, bounded summary report grouped by cache identity.

## Known failure modes

- Empty rows array or rows below minItems (1) returns a validation error
- Rows exceeding maxItems (200) are rejected
- Invalid date format (not YYYY-MM-DD) causes schema validation failure
- Missing required fields (row_id, cache, date, hits, misses) in any row causes rejection
- Invalid field enum value (not 'hits' or 'misses') causes rejection
- Payment failure or insufficient USDC balance blocks the request

## How this service works

Cache observations - Grouped numeric summary: Grouped numeric summary 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 grouped numeric summary report.

## Output

A bounded grouped numeric summary report containing descriptive statistics (e.g. count, min, max, mean, sum) for the chosen field (hits or misses), broken down by cache group name, derived entirely from the supplied records with no external 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
  },
  "field": {
   "enum": [
    "hits",
    "misses"
   ],
   "type": "string",
   "default": "hits"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cache-observations-grouped-numeric-summary-9edf3c53/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)