# The Stall — Solar Intelligence

> The Stall — Solar Intelligence is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns solar energy or solar activity intelligence data, payable per-call with USDC on Base via x402, no API keys required.

## Facts

- Endpoint: GET https://the-stall.intuitek.ai/cap/solar-intel
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/the-stall-solar-intelligence-4cfaf2fa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_On8qjQckJFTZIfYbVk89T

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 the-stall-solar-intelligence-4cfaf2fa
```

Example prompt: Can you pull current solar intelligence data — things like solar irradiance, solar flux, or space weather conditions — using the IntuiTek Stall solar-intel service?

## When to prefer this

Choose this endpoint when you need on-demand solar intelligence data (irradiance, space weather, solar flux) without setting up API keys or accounts, and are comfortable paying $0.02 USDC per call on Base mainnet via the x402 micropayment protocol.

## Known failure modes

- Missing or invalid properties parameter returns malformed or empty response
- Insufficient USDC balance on Base mainnet results in 402 payment required error
- Network or blockchain confirmation delays cause timeout
- Unsupported property key returns null or error payload
- Rate limiting or service unavailability returns 5xx error

## How this service works

Solar irradiance analysis and 7-day forecast for any location. Returns GHI (global horizontal irradiance), DNI (direct normal), DHI (diffuse), peak sun hours, cloud cover, sunrise/sunset, and panel yield estimate for a 1 kW system. Useful for rooftop solar feasibility, agricultural planning, EV charging optimization, and energy market analysis. Free upstream: Open-Meteo (no API key, no rate limits). Undercuts stableenrich.dev/api/google-maps/solar by 31%.

## Output

Returns solar intelligence data such as solar irradiance, solar activity metrics, space weather indices, or photovoltaic-relevant environmental readings, depending on the properties parameter provided.

## Example request

```json
{
 "location": "San Francisco",
 "properties": "solar_irradiance"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/the-stall-solar-intelligence-4cfaf2fa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from the-stall.intuitek.ai](https://www.zero.xyz/host/the-stall.intuitek.ai/llms.txt)