# Orthogonal Hourly Relative Humidity API

> Orthogonal Hourly Relative Humidity API is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns hourly relative humidity percentages (0-100%) for one or more geographic coordinates over a specified date range

## Facts

- Endpoint: GET https://x402.orthogonal.com/precip/api/v1/relative-humidity-hourly
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orthogonal-hourly-relative-humidity-api-831a7b9c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tgOXiBUKVzq-tkNfcWjPK

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 orthogonal-hourly-relative-humidity-api-831a7b9c
```

Example prompt: Can you get me the hourly relative humidity readings for San Francisco (37.7575, -122.42616) from October 1 to October 31, 2025, in the America/Los_Angeles timezone, as JSON?

## When to prefer this

Choose this endpoint when you need time-series hourly relative humidity data for specific geographic coordinates, especially for multi-location queries across a date range. It is ideal for weather analysis, agricultural planning, HVAC optimization, or any use case requiring fine-grained moisture data at hourly resolution. Prefer it over daily aggregates when intraday humidity variation matters.

## Known failure modes

- Missing or invalid latitude/longitude coordinates returns an error
- Date range outside available data coverage returns empty or partial results
- Mismatched number of latitude and longitude values causes a parameter error
- Unsupported IANA timezone identifier causes a formatting error
- Invalid output format value (not json/geojson/csv) may return an error or default behavior
- Network timeout for large date ranges or many coordinates

## How this service works

Hourly relative humidity as a percentage (0-100%) | ERROR: Unable to calculate price.

## Output

A JSON, GeoJSON, or CSV response containing hourly relative humidity values (as percentages between 0 and 100) for each requested coordinate pair, indexed by localized timestamps according to the specified IANA timezone. Multi-location queries return data for all coordinates in a single response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "end": {
       "type": "string",
       "default": "2025-10-31",
       "example": "2025-10-31"
      },
      "start": {
       "type": "string",
       "default": "2025-10-01",
       "example": "2025-10-01"
      },
      "format": {
       "type": "string",
       "default": "json",
       "description": "Output format: `geojson`, `json` or `csv`"
      },
      "latitude": {
       "type": "string",
       "default": "37.75750,42.35355,29.97991",
       "example": "37.75750,42.35355,29.97991",
       "description": "Comma-separated list of latitude coordinates (WGS84)"
      },
      "longitude": {
       "type": "string",
       "default": "-122.42616,-71.06053,-90.07447",
       "example": "-122.42616,-71.06053,-90.07447",
       "description": "Comma-separated list of longitude coordinates (WGS84)"
      },
      "timeZoneId": {
       "type": "string",
       "default": "America/Chicago",
       "example": "America/Chicago",
       "description": "IANA timezone identifier for localizing timestamps"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orthogonal-hourly-relative-humidity-api-831a7b9c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.orthogonal.com](https://www.zero.xyz/host/x402.orthogonal.com/llms.txt)