# `nws__nws_find_stations`

**Nws Find Stations**

Find weather observation stations near a location. Returns stations sorted by proximity with distance and bearing. Use to discover station IDs for nws_get_observations.

- Server: [US National Weather Service](https://gateway.mcpharbor.dev/docs/servers/nws) (`dev.mcpharbor.gateway/nws`)
- Price per call: $0.0001 (100 micro-USD); only tools/call is charged
- Endpoint: `https://gateway.mcpharbor.dev/mcp` or `https://gateway.mcpharbor.dev/mcp/nws`
- Upstream tool: exposed by the provider; called through this gateway as `nws__nws_find_stations`
- Provider terms: <https://www.weather.gov/disclaimer> (verified 2026-09-19)
- Upstream API documentation: <https://www.weather.gov/documentation/services-web-api>
- Rate limit: 300 requests per minute
- Attribution required: No attribution required. Must not claim the content as your own, imply NOAA/NWS endorsement, or modify content and present it as official government material. Third parties producing copyrighted works predominantly of NWS material must add a notice identifying the NWS material as not subject to copyright. A User-Agent identifying the app (ideally with contact info) is required on every request.

## Parameters

- `cursor` (string, optional): Opaque continuation token from a previous response's nextCursor. Omit for the first page. The token carries its own page size, so limit applies to the first page only. Every call re-fetches the sta...
- `latitude` (number, required): Center latitude for proximity search.
- `limit` (integer, optional): Max stations per page (1-50). totalCount still reports every station near the point, so pass the returned nextCursor as cursor to reach the rest. Default: `10`.
- `longitude` (number, required): Center longitude for proximity search.

## Example call

Request headers and body:

```http
POST /mcp HTTP/1.1
Host: gateway.mcpharbor.dev
Authorization: Bearer <your gateway API key>
Content-Type: application/json
Accept: application/json, text/event-stream
MCP-Protocol-Version: 2026-07-28
Mcp-Method: tools/call
Mcp-Name: nws__nws_find_stations
```

```json
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "_meta": {
      "io.modelcontextprotocol/clientCapabilities": {},
      "io.modelcontextprotocol/clientInfo": {
        "name": "example-agent",
        "version": "1.0.0"
      },
      "io.modelcontextprotocol/protocolVersion": "2026-07-28"
    },
    "arguments": {
      "latitude": 1,
      "longitude": 1
    },
    "name": "nws__nws_find_stations"
  }
}
```

A successful response:

```json
{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "_meta": {
      "dev.mcpharbor.gateway/call": {
        "chargedMicroUsd": 100,
        "id": "<the id of this charge>"
      }
    },
    "content": [
      {
        "text": "<whatever the upstream tool returned>",
        "type": "text"
      }
    ],
    "resultType": "complete"
  }
}
```

This call costs $0.0001 (100 micro-USD). Reading this page and listing the tool cost nothing.
The `dev.mcpharbor.gateway/call` record in the result is the receipt for that charge. Each
POST is metered separately, so sending the same call again buys another one: see
[agent.txt](https://gateway.mcpharbor.dev/agent.txt), section 7, before retrying.

## Attribution

This provider requires the attribution below wherever you use results from its tools.
Reproduce it verbatim:

> No attribution required. Must not claim the content as your own, imply NOAA/NWS endorsement, or modify content and present it as official government material. Third parties producing copyrighted wo...

## Tool definition

Exactly as `tools/list` returns it (free):

```json
{
  "_meta": {
    "dev.mcpharbor.gateway/pricing": {
      "currency": "USD",
      "pricePerCallMicroUsd": 100
    }
  },
  "annotations": {
    "readOnlyHint": true
  },
  "description": "Find weather observation stations near a location. Returns stations sorted by proximity with distance and bearing. Use to discover station IDs for nws_get_observations.",
  "inputSchema": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "additionalProperties": false,
    "properties": {
      "cursor": {
        "description": "Opaque continuation token from a previous response's nextCursor. Omit for the first page. The token carries its own page size, so limit applies to the first page only. Every call re-fetches the station list, so pages are contiguous within one response; the registry changes rarely, but a later call can window an updated list.",
        "type": "string"
      },
      "latitude": {
        "description": "Center latitude for proximity search.",
        "maximum": 90,
        "minimum": -90,
        "type": "number"
      },
      "limit": {
        "default": 10,
        "description": "Max stations per page (1-50). totalCount still reports every station near the point, so pass the returned nextCursor as cursor to reach the rest.",
        "maximum": 50,
        "minimum": 1,
        "type": "integer"
      },
      "longitude": {
        "description": "Center longitude for proximity search.",
        "maximum": 180,
        "minimum": -180,
        "type": "number"
      }
    },
    "required": [
      "latitude",
      "longitude"
    ],
    "type": "object"
  },
  "name": "nws__nws_find_stations",
  "outputSchema": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "additionalProperties": false,
    "anyOf": [
      {
        "not": {
          "required": [
            "error"
          ]
        },
        "required": [
          "stations",
          "totalCount",
          "shown"
        ]
      },
      {
        "required": [
          "error"
        ]
      }
    ],
    "properties": {
      "error": {
        "additionalProperties": {},
        "description": "Present when the call failed. Absent on success.",
        "properties": {
          "code": {
            "description": "JSON-RPC error code for this failure.",
            "maximum": 9007199254740991,
            "minimum": -9007199254740991,
            "type": "integer"
          },
          "data": {
            "additionalProperties": {},
            "properties": {
              "reason": {
                "description": "Machine-readable failure mode. Declared by this tool: `out_of_scope`: Coordinates fall outside US National Weather Service coverage. Other values are possible when a failure originates below the handler.",
                "examples": [
                  "out_of_scope"
                ],
                "type": "string"
              },
              "recovery": {
                "additionalProperties": {},
                "description": "Actionable next step for the caller.",
                "properties": {
                  "hint": {
                    "type": "string"
                  }
                },
                "required": [
                  "hint"
                ],
                "type": "object"
              },
              "retryable": {
                "description": "Whether retrying may succeed.",
                "type": "boolean"
              }
            },
            "type": "object"
          },
          "message": {
            "description": "Human-readable description of what went wrong.",
            "type": "string"
          }
        },
        "required": [
          "code",
          "message"
        ],
        "type": "object"
      },
      "nextCursor": {
        "description": "Opaque token for the next page of stations — pass it back as `cursor`. Omitted when this is the last page.",
        "type": "string"
      },
      "notice": {
        "description": "Guidance when no stations were found near the requested coordinates, when stations remain beyond this page, or when the supplied cursor points past the end of the list.",
        "type": "string"
      },
      "shown": {
        "description": "Number of stations returned in this page",
        "type": "number"
      },
      "stations": {
        "description": "Nearby stations sorted by distance",
        "items": {
          "additionalProperties": false,
          "description": "Observation station record with identity, location, and zone codes",
          "properties": {
            "bearing": {
              "description": "Compass bearing from query point (e.g., \"NW\")",
              "type": "string"
            },
            "county": {
              "description": "County zone code (e.g., \"WAC033\")",
              "type": "string"
            },
            "distanceKm": {
              "description": "Distance from query point in kilometers",
              "type": "number"
            },
            "elevationM": {
              "description": "Elevation in meters",
              "type": [
                "number",
                "null"
              ]
            },
            "forecastZone": {
              "description": "Forecast zone code (e.g., \"WAZ315\")",
              "type": "string"
            },
            "name": {
              "description": "Station name",
              "type": "string"
            },
            "stationId": {
              "description": "Station identifier (e.g., \"KSEA\")",
              "type": "string"
            },
            "timeZone": {
              "description": "IANA time zone",
              "type": "string"
            }
          },
          "required": [
            "stationId",
            "name",
            "distanceKm",
            "bearing",
            "elevationM",
            "timeZone",
            "county",
            "forecastZone"
          ],
          "type": "object"
        },
        "type": "array"
      },
      "totalCount": {
        "description": "Total observation stations available near this location before the page limit was applied — NOT the number returned in this page, which is shown. Same value on every page of one query; compare it against shown to tell whether stations were withheld.",
        "type": "number"
      }
    },
    "type": "object"
  },
  "title": "Nws Find Stations"
}
```