# Humidity Observations — Adjacent Row Changes & Two-Measure Correlation

> Humidity Observations — Adjacent Row Changes & Two-Measure Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-02).

Analyzes up to 200 humidity observation records, computing adjacent row changes and two-measure correlation between humidity_percent and observation_count.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-ib26-weather-04-158?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/humidity-observations-adjacent-row-changes-two-measure-correlation-bb3d40e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OGG1EIXeJ2jIHhZ3kRJLC

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 humidity-observations-adjacent-row-changes-two-measure-correlation-bb3d40e6 -d '<json body>'
```

Example prompt: Can you run adjacent row change detection and two-measure correlation on these humidity observation records — I have up to 50 rows with station_group, date, humidity_percent, and observation_count fields, and I want both reports in one call?

## When to prefer this

Choose this endpoint when you have tabular humidity observation data and need both row-over-row change detection and two-measure correlation in a single call without requiring any external data lookups or live weather feeds. Best suited for offline or batch analytical workflows on already-collected sensor data up to 200 rows.

## Known failure modes

- More than 200 rows submitted — request will be rejected or truncated
- Missing required fields (row_id, date, humidity_percent, observation_count) causing validation errors
- Invalid date format (must match YYYY-MM-DD pattern) causing schema rejection
- Null values in numeric fields may affect correlation computation
- Insufficient payment (0.01 USDC required) causing 402 response

## How this service works

Humidity observations — Adjacent row changes + Two-measure correlation: Adjacent row changes + Two-measure correlation for supplied humidity observations records (humidity_percent, observation_count). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data reports for up to 200 rows.

## Output

Two analytical reports: (1) an adjacent row changes report showing sequential differences between consecutive rows for the selected measure, and (2) a two-measure correlation report quantifying the statistical relationship between humidity_percent and observation_count across the supplied dataset of up to 200 rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "row_id",
     "station_group",
     "date",
     "humidity_percent",
     "observation_count"
    ],
    "properties": {
     "date": {
      "type": "string",
      "default": "",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "maxLength": 10
     },
     "row_id": {
      "type": "string",
      "default": "",
      "maxLength": 80,
      "minLength": 1
     },
     "station_group": {
      "type": "string",
      "default": "",
      "maxLength": 80
     },
     "humidity_percent": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "observation_count": {
      "type": [
       "number",
       "null"
      ],
      "maximum": 1000000000000,
      "minimum": -1000000000000
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "date": "2026-10-01",
     "row_id": "row-1",
     "station_group": "group-a",
     "humidity_percent": 10,
     "observation_count": 1
    },
    {
     "date": "2026-10-02",
     "row_id": "row-2",
     "station_group": "group-b",
     "humidity_percent": 20,
     "observation_count": 2
    },
    {
     "date": "2026-10-03",
     "row_id": "row-3",
     "station_group": "group-a",
     "humidity_percent": 15,
     "observation_count": 3
    },
    {
     "date": "2026-10-04",
     "row_id": "row-4",
     "station_group": "group-b",
     "humidity_percent": 30,
     "observation_count": 4
    }
   ],
   "maxItems": 200,
   "minItems": 1
  },
  "field": {
   "enum": [
    "humidity_percent",
    "observation_count"
   ],
   "type": "string",
   "default": "humidity_percent"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/humidity-observations-adjacent-row-changes-two-measure-correlation-bb3d40e6/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)