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OpenAPI Specification

openapi: 3.2.0
info:
  title: Weather Underground PWS Forecast Location API
  description: 'REST API for Personal Weather Station (PWS) data provided by Weather Underground (hosted at api.weather.com). Provides current conditions, daily summaries, hourly and daily historical records, 5-day forecasts, and station location lookup. Access requires a free API key issued to registered PWS contributors.

    '
  version: 2.0.0
  contact:
    url: https://www.wunderground.com/member/api-keys
  termsOfService: https://www.wunderground.com/member/api-keys
  x-api-evangelist-ratings:
    design: 7
    documentation: 5
    authentication: 7
    openapi: 1
servers:
- url: https://api.weather.com
  description: Weather Underground / The Weather Company API server
security:
- apiKey: []
tags:
- name: Location
  description: PWS station location lookup
paths:
  /v3/location/near:
    get:
      operationId: getNearbyPWSLocations
      summary: Find nearest active PWS stations
      description: 'Returns a list of nearest active Personal Weather Stations for a given geographic coordinate. Useful for discovering available station IDs before querying observation data.

        '
      tags:
      - Location
      parameters:
      - name: geocode
        in: query
        required: true
        description: Latitude and longitude as a comma-separated pair
        schema:
          type: string
          example: 37.774,-122.419
      - name: product
        in: query
        required: true
        description: Product type to search for (use "pws" for Personal Weather Stations)
        schema:
          type: string
          enum:
          - pws
          example: pws
      - $ref: '#/components/parameters/format'
      responses:
        '200':
          description: Successful nearby PWS locations response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LocationNearResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  responses:
    NotFound:
      description: 'The requested station ID was not found or has no data for the specified date range.

        '
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    Unauthorized:
      description: 'Authentication failed. The API key is missing, invalid, or not authorized for the requested station or endpoint.

        '
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  parameters:
    format:
      name: format
      in: query
      required: false
      description: Response format. Only JSON is currently supported.
      schema:
        type: string
        enum:
        - json
        default: json
  schemas:
    ErrorResponse:
      type: object
      description: Error response from the API
      properties:
        errors:
          type: array
          items:
            type: object
            properties:
              error:
                type: object
                properties:
                  code:
                    type: string
                    description: Error code
                    example: NOT-AUTHORIZED
                  message:
                    type: string
                    description: Human-readable error message
                    example: Not Authorized
    LocationNearResponse:
      type: object
      description: Response containing nearby PWS station locations
      properties:
        location:
          type: object
          description: Location search result container
          properties:
            stationIdentifier:
              type: array
              items:
                type: string
              description: List of nearby PWS station identifiers
              example:
              - KCASARAT1
              - KCAFREMO12
            latitude:
              type: array
              items:
                type: number
              description: Latitude of each nearby station
              example:
              - 37.774
              - 37.78
            longitude:
              type: array
              items:
                type: number
              description: Longitude of each nearby station
              example:
              - -122.419
              - -122.425
            distanceKm:
              type: array
              items:
                type: number
              description: Distance to each station in kilometers
              example:
              - 0.5
              - 1.2
            distanceMi:
              type: array
              items:
                type: number
              description: Distance to each station in miles
              example:
              - 0.31
              - 0.75
  securitySchemes:
    apiKey:
      type: apiKey
      in: query
      name: apiKey
      description: 'API key issued to registered PWS contributors via https://www.wunderground.com/member/api-keys

        '