# Cache Observations Daily Sum Series

> Cache Observations Daily Sum Series 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 daily sum totals (hits or misses) across cache observation records, grouped by date, for up to 200 input rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-analytics-cache-observations-date-series?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-daily-sum-series-fafefea1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gU5DLc1tCkF-_Tcr9wYg2

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-daily-sum-series-fafefea1 -d '<json body>'
```

Example prompt: Can you give me a daily sum series for cache hits using these cache observation records — I have up to 50 rows with fields like date, cache group name, hits, and misses, and I want to see totals by day for the hits field?

## When to prefer this

Choose this endpoint when you have raw cache observation records with daily timestamps and want a quick descriptive daily sum rollup without needing forecasting, enrichment, or cross-dataset comparison. It is ideal for lightweight, bounded analytics on up to 200 rows of cache hit/miss data where you need totals aggregated by date.

## Known failure modes

- Fewer than 1 row supplied — minimum item count not met
- Row missing required fields (row_id, cache, date, hits, misses) — validation error
- Date string not in YYYY-MM-DD format — pattern mismatch
- Numeric field values outside allowed range (±1,000,000,000,000) — schema error
- More than 200 rows submitted — maxItems exceeded
- Invalid field enum value (not 'hits' or 'misses') — enum validation failure
- Payment not included or insufficient — x402 payment required error

## How this service works

Cache observations - Daily sum series: Daily sum 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 daily sum series report.

## Output

Returns a daily sum series report: aggregated numeric totals for the selected field (hits or misses) grouped by date across all supplied cache observation rows. The report is bounded to the input data with no external enrichment or forecasting — purely local descriptive analytics.

## 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-daily-sum-series-fafefea1/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)