# NHC Tropical Cyclone Positions

> NHC Tropical Cyclone Positions is a paid API for AI agents from x402.forgemesh.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns real-time position, movement, intensity, and classification for every active tropical cyclone tracked by the US National Hurricane Center in the Atlantic and Eastern Pacific basins.

## Facts

- Endpoint: POST https://x402.forgemesh.io/tropical-cyclone-positions
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nhc-tropical-cyclone-positions-25b4eadb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Diggf3mRDWrmT0GtxWjSX

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 nhc-tropical-cyclone-positions-25b4eadb -d '<json body>'
```

Example prompt: What tropical storms or hurricanes is the National Hurricane Center tracking right now in the Atlantic or Eastern Pacific — I need each storm's current position, wind speed, and movement direction for maritime routing decisions.

## When to prefer this

Use this endpoint when you need authoritative, real-time NHC tropical cyclone data for the Atlantic or Eastern Pacific basins — ideal for maritime route planning, aviation risk assessment, supply chain disruption analysis, or news/alerting agents. Prefer this over generic weather APIs when you specifically need storm classification, track, and intensity in a machine-readable format with sub-cent per-call pricing.

## Known failure modes

- Empty storm list returned during off-season (not an error — by design)
- Network or payment failure resulting in no response
- NHC data feed temporarily unavailable upstream causing stale or missing data

## How this service works

Latest position, movement, intensity, and classification for every tropical cyclone the US National Hurricane Center is currently tracking across the Atlantic and Eastern Pacific basins. Use it for maritime and aviation risk planning, supply-chain rerouting, and news or alerting agents. Off-season the storm list is empty by design, not an error.

## Output

A list of all currently active tropical cyclones tracked by the NHC, each with its geographic position (latitude/longitude), movement vector (direction and speed in knots), maximum sustained wind intensity, Saffir-Simpson or tropical storm/depression classification, and the basin it is in (Atlantic or Eastern Pacific). During the off-season the list will be empty.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "activeStorms": [
    {
     "name": "Elida",
     "intensity": "50",
     "classification": "TS",
     "latitudeNumeric": 15.6,
     "longitudeNumeric": -116.5
    }
   ]
  },
  "attribution": "NOAA National Hurricane Center (public domain)"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nhc-tropical-cyclone-positions-25b4eadb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.forgemesh.io](https://www.zero.xyz/host/x402.forgemesh.io/llms.txt)