# Solar Radiation Hourly

> Solar Radiation 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 downward short-wave radiation flux in watts per square meter (W/m²) for a given location

## Facts

- Endpoint: GET https://mpp.orthogonal.com/precip/api/v1/solar-radiation-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-solar-radiation-hourly-381bc74b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_j3ZnXwaNBZLQfGGKinBKq

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-solar-radiation-hourly-381bc74b
```

Example prompt: Can you pull the hourly solar radiation data in W/m² for the location at 37.7749° N, 122.4194° W for the past 7 days? I want to see the downward short-wave flux hour by hour to evaluate solar panel output potential.

## When to prefer this

Choose this endpoint when you need site-specific, hyperlocal hourly solar radiation flux data in W/m² — particularly for solar energy assessments, agricultural light modeling, or climate research. Prefer this over generic weather APIs when accuracy at the individual site level is critical and when you need the data at hourly resolution rather than daily summaries.

## Known failure modes

- Invalid or out-of-range latitude/longitude returns an error
- Date range exceeds available historical data window
- Missing required location parameters returns a 400 error
- Unsupported date format causes a parsing error
- Location in a region with no coverage returns empty or null data

## How this service works

Hourly downward short-wave radiation flux in watts per square meter (W/m²)

## Output

A time series of hourly downward short-wave radiation flux values in watts per square meter (W/m²) for the specified location and time range, enabling solar energy assessments, agricultural planning, and climate analysis.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/precip-ai-hyperlocal-weather-data-api-solar-radiation-hourly-381bc74b/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)