# Solar Generation Observations – Category Frequencies

> Solar Generation Observations – Category Frequencies is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Computes category frequency counts for solar generation observation records, returning a bounded descriptive analytics report for up to 200 supplied data rows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ar-analytics-solar-generation-category-counts?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solar-generation-observations-category-frequencies-244c5194
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gBJL8Ye-t5HI4rV5-2Yq4

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 solar-generation-observations-category-frequencies-244c5194 -d '<json body>'
```

Example prompt: I have a batch of up to 200 daily solar generation readings across arrays group-a and group-b with dates, generation_kwh, and irradiance_w_m2 values — can you run a category frequency count on them so I can see how many observations fall into each solar array group?

## When to prefer this

Choose this endpoint when you need a fast, cheap, local frequency count of solar array categories from a small batch (≤200 rows) of generation observations and do not need forecasting, enrichment, or time-series analysis. It is ideal for data quality checks, coverage audits, and descriptive summaries of solar generation logs.

## Known failure modes

- Fewer than 1 row submitted returns a validation error
- More than 200 rows submitted exceeds the maxItems limit and is rejected
- Missing required fields (row_id, solar_array, date, generation_kwh, irradiance_w_m2) cause schema validation failure
- Invalid date format (not YYYY-MM-DD) causes a pattern validation error
- Payment of 0.01 USDC not fulfilled causes a 402 response blocking execution

## How this service works

Solar generation observations - Category frequencies: Category frequencies for Solar generation 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 category frequencies report.

## Output

A bounded category frequencies report listing each distinct solar array category found in the submitted rows along with its observation count, computed locally 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",
     "solar_array",
     "date",
     "generation_kwh",
     "irradiance_w_m2"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "solar_array": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "generation_kwh": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "irradiance_w_m2": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "solar_array": "group-a",
     "generation_kwh": 10,
     "irradiance_w_m2": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "solar_array": "group-b",
     "generation_kwh": 20,
     "irradiance_w_m2": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "solar_array": "group-a",
     "generation_kwh": 15,
     "irradiance_w_m2": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "solar_array": "group-b",
     "generation_kwh": 30,
     "irradiance_w_m2": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solar-generation-observations-category-frequencies-244c5194/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)