# Cache Observations Base-100 Series Analytics

> Cache Observations Base-100 Series Analytics is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Computes a base-100 indexed series for cache hit or miss observations across up to 200 dated records, enabling normalized trend comparison anchored to a chosen baseline row.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-analytics-cache-observations-index?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cache-observations-base-100-series-analytics-2d21e6ab
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CON4w3WSzcWUp0mI_h4s7

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-base-100-series-analytics-2d21e6ab -d '<json body>'
```

Example prompt: Take these cache hit records for group-a and group-b from October 2026 — up to 4 rows with dates, hits, and misses — and give me a base-100 index series for hits, anchored to row 0 (the first row).

## When to prefer this

Choose this endpoint when you need a simple, fast, local base-100 normalization of cache hit or miss time-series data without external dependencies, enrichment, or forecasting. It is ideal for comparing relative performance trends across multiple cache groups anchored to a reference observation, at very low cost ($0.01 USDC). Prefer alternatives if you also need correlation analysis, forecasting, or enrichment alongside the index.

## Known failure modes

- Fewer than 1 row supplied — minimum of 1 row required
- More than 200 rows supplied — maximum of 200 rows enforced
- base_index references a row index out of bounds for the supplied array
- base_index row has a zero or null value for the selected field, causing division-by-zero in normalization
- Missing required fields (row_id, cache, date, hits, misses) on any row
- Invalid date format — must match YYYY-MM-DD pattern
- Numeric values outside the allowed range (±1,000,000,000,000)

## How this service works

Cache observations - Base-100 series: Base-100 series 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 base-100 series report.

## Output

Returns a base-100 indexed series report for the selected field (hits or misses) across all supplied cache observation rows, normalized so the chosen base_index row equals 100. Includes local descriptive analytics (no external enrichment or forecasting). Each row in the output reflects its value as a percentage of the baseline row's value.

## 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"
  },
  "base_index": {
   "type": "integer",
   "default": 0,
   "maximum": 199,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cache-observations-base-100-series-analytics-2d21e6ab/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)