# Precip AI Specific Humidity Hourly

> Precip AI Specific Humidity Hourly is a paid API for AI agents from Precip AI - Hyperlocal Weather Data API at mpp.orthogonal.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-10).

Returns hourly specific humidity values (in kg/kg) for a given location using hyperlocal weather modeling

## Facts

- Endpoint: GET https://mpp.orthogonal.com/precip/api/v1/specific-humidity-hourly?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Provider: Precip AI - Hyperlocal Weather Data API
- Docs: https://api.precip.ai
- Website: https://api.precip.ai
- Tags: weather, rainfall, hyperlocal, climate, data
- Canonical page: https://www.zero.xyz/c/precip-ai-hyperlocal-weather-data-api-precip-ai-specific-humidity-cca5845f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KURL7rQlvMOCFSTLs3bFo

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 precip-ai-hyperlocal-weather-data-api-precip-ai-specific-humidity-cca5845f
```

Example prompt: Can you get me the hourly specific humidity readings in kg/kg for the location at 37.7749° N, 122.4194° W for the past 48 hours? I need the full time series for moisture analysis.

## When to prefer this

Use this endpoint when you need precise, site-specific specific humidity (kg/kg) at hourly resolution — ideal for agricultural planning, HVAC load modeling, dew point calculations, or atmospheric science workflows that require absolute moisture content rather than relative humidity. Prefer this over general weather APIs when hyperlocal accuracy matters and you specifically need specific humidity in kg/kg units.

## Known failure modes

- Invalid or out-of-range coordinates return an error
- Time range outside supported historical or forecast window returns no data
- Missing required parameters (lat/lon) result in a 400 Bad Request
- Rate limiting or authentication failure returns 401/429
- Location over ocean or polar region may return null or sparse data

## How this service works

Hourly specific humidity (kg/kg)

## Output

Returns a time series of hourly specific humidity values expressed in kg/kg (kilograms of water vapor per kilogram of moist air) for the requested location and time window, enabling precise atmospheric moisture analysis at site-specific resolution.

## Example request

```json
{
 "hours": 48,
 "latitude": 37.7749,
 "longitude": -122.4194
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/precip-ai-hyperlocal-weather-data-api-precip-ai-specific-humidity-cca5845f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)