# Marine Conditions Sea State Classifier

> Marine Conditions Sea State Classifier is a paid API for AI agents from marine-conditions.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).

Converts wind speed and wave height into Beaufort wind force and Douglas sea state ratings with plain-language descriptions of sea conditions.

## Facts

- Endpoint: GET https://marine-conditions.x402tookit.com/sea-state?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/marine-conditions-sea-state-classifier-016a6185
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JsA-M0LfQv8K8GOgIC-Y9

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 marine-conditions-sea-state-classifier-016a6185
```

Example prompt: What's the Beaufort wind force and Douglas sea state for a wind speed of 25 knots and a significant wave height of 2.5 meters? Give me a plain-language description of what those conditions are like.

## When to prefer this

Use this endpoint when you have raw numeric wind speed and wave height measurements and need standardized Beaufort and Douglas scale ratings with human-readable descriptions — particularly when integrating buoy or weather station data into maritime safety workflows or vessel routing. Prefer it over manual lookup tables or general-purpose LLM classification for consistent, authoritative scale conversions.

## Known failure modes

- Missing required wind or wave query parameters returns incomplete or null fields
- Invalid unit strings (e.g. waveUnit not 'm' or 'ft') may cause unexpected results
- Negative or physically implausible values may return null classifications
- Network timeout or service unavailability returns no data

## How this service works

Beaufort wind force and Douglas sea state from a wind speed and wave height, with plain-language descriptions of sea conditions.

## Output

Returns the Beaufort wind force number and name (e.g. 'Fresh Breeze'), the input wind speed converted to knots and its standard knot range, a sea description for the wind; plus the Douglas sea state number and name, the input wave height in meters and its standard meter range; a combined summary and verdict string describing overall conditions; a timestamp, data source, degraded flag, disclaimer, and any reasons or parameters not checked.

## 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": [],
     "properties": {
      "wave": {
       "type": "number",
       "description": "Significant wave height"
      },
      "wind": {
       "type": "number",
       "description": "Wind speed"
      },
      "waveUnit": {
       "type": "string",
       "description": "m (default) or ft"
      },
      "windUnit": {
       "type": "string",
       "description": "kt (default), mph, kmh or ms"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "wind": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "name": {
         "type": [
          "null",
          "string"
         ]
        },
        "inputKnots": {
         "type": [
          "null",
          "number"
         ]
        },
        "knotsRange": {
         "type": [
          "null",
          "string"
         ]
        },
        "beaufortForce": {
         "type": [
          "null",
          "number"
         ]
        },
        "seaDescription": {
         "type": [
          "null",
          "string"
         ]
        }
       }
      },
      "waves": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "name": {
         "type": [
          "null",
          "string"
         ]
        },
        "meterRange": {
         "type": [
          "null",
          "string"
         ]
        },
        "inputMeters": {
         "type": [
          "null",
          "number"
         ]
        },
        "douglasSeaState": {
         "type": [
          "null",
          "number"
         ]
        }
       }
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/marine-conditions-sea-state-classifier-016a6185/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from marine-conditions.x402tookit.com](https://www.zero.xyz/host/marine-conditions.x402tookit.com/llms.txt)