# Site Climate Wind Resource

> Site Climate Wind Resource is a paid API for AI agents from site-climate.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Returns average wind speed at 10m scaled to a turbine hub height, wind power density, and NREL wind resource class for any geographic location.

## Facts

- Endpoint: GET https://site-climate.x402tookit.com/wind-resource?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/site-climate-wind-resource-c8332971
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zqAs-NoNu-D5-3Ur7C6CC

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 site-climate-wind-resource-c8332971
```

Example prompt: What's the wind resource at coordinates 41.8°N, 102.3°W for a turbine with an 80-meter hub height? I need the mean wind speed at hub height, the wind power density, and the NREL class.

## When to prefer this

Choose this endpoint when you need wind resource characterisation for a specific geographic point — especially for renewable energy site assessment, turbine siting, or feasibility studies. It uniquely combines 10m-to-hub-height scaling, NREL class assignment, and monthly wind speed breakdowns in a single call, making it more useful than raw weather APIs for energy planning purposes.

## Known failure modes

- Latitude or longitude out of range returns a validation error
- Hub height outside 10–200m range is rejected
- No wind data available for very remote or ocean locations
- Shear exponent out of 0.1–0.4 range returns an error
- API returns degraded flag if underlying data source is partially unavailable

## How this service works

Average wind speed at 10 m scaled to a turbine hub height, with approximate wind power density and NREL class for a location.

## Output

Returns mean wind speed at 10m and at the specified hub height (m/s), approximate wind power density (W/m²), NREL wind resource class, monthly hub-height wind speeds broken out by calendar month, the calmest and windiest months, the data source and attribution, and a summary verdict on the site's wind resource quality.

## 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",
     "required": [
      "lat",
      "lon"
     ],
     "properties": {
      "lat": {
       "type": "number",
       "description": "Latitude, -90 to 90"
      },
      "lon": {
       "type": "number",
       "description": "Longitude, -180 to 180"
      },
      "hubHeightM": {
       "type": "number",
       "description": "Hub height in metres, 10 to 200 (default 80)"
      },
      "shearExponent": {
       "type": "number",
       "description": "Power-law exponent, 0.1 to 0.4 (default 0.143, open terrain)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "latitude": {
       "type": [
        "null",
        "number"
       ]
      },
      "longitude": {
       "type": [
        "null",
        "number"
       ]
      },
      "sourceUrl": {
       "type": [
        "null",
        "string"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "hubHeightM": {
       "type": [
        "null",
        "number"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "attribution": {
       "type": [
        "null",
        "string"
       ]
      },
      "calmestMonth": {
       "type": [
        "nul
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/site-climate-wind-resource-c8332971/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from site-climate.x402tookit.com](https://www.zero.xyz/host/site-climate.x402tookit.com/llms.txt)