# Natur Halowerk Solar Storm / Geomagnetic Activity Assembler

> Natur Halowerk Solar Storm / Geomagnetic Activity Assembler is a paid API for AI agents from natur.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-16).

Assembles current geomagnetic activity data from four NOAA sources, returning Kp index, G-scale storm levels, and guidance on what each data source is best suited for.

## Facts

- Endpoint: POST https://natur.halowerk.com/v1/solar-storm
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/natur-halowerk-solar-storm-geomagnetic-activity-assembler-4dfa4c75
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cJWvcSNb38UPr5d0oIILW

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 natur-halowerk-solar-storm-geomagnetic-activity-assembler-4dfa4c75 -d '<json body>'
```

Example prompt: What are the current geomagnetic storm conditions right now — give me the Kp index, the G-scale level, and a breakdown of what each NOAA source is telling us?

## When to prefer this

Choose this endpoint when you need a consolidated, multi-source snapshot of current geomagnetic activity in a single call — particularly when you want the Kp index mapped to the intuitive G-scale and want guidance on each source's strengths and limitations, rather than querying NOAA APIs individually. Best for real-time situational awareness rather than forecasting future storms.

## Known failure modes

- NOAA upstream sources unavailable or returning stale data
- Network timeout when fetching from one or more of the four NOAA feeds
- Response may reflect a storm that has already passed if data freshness is limited
- No active storm conditions returns a low/quiet Kp reading rather than an error

## How this service works

Assembles the current state of geomagnetic activity from four NOAA sources and says what each one is good for. The planetary Kp index is the standard scale and maps to the G-scale storm levels, but it is computed from ground magnetometers and therefore describes a storm that has already arrived.

## Output

Returns the assembled current geomagnetic activity state drawn from four NOAA data sources, including the planetary Kp index (and its mapping to the G-scale storm level from G0 to G5), plus commentary on what each source is best suited for — noting that ground-magnetometer-based data like Kp describes a storm that has already arrived rather than predicting future activity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "include_forecast": {
   "type": "boolean",
   "default": true,
   "description": "Include the official NOAA three-day forecast."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/natur-halowerk-solar-storm-geomagnetic-activity-assembler-4dfa4c75/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from natur.halowerk.com](https://www.zero.xyz/host/natur.halowerk.com/llms.txt)