Tomorrow.io Events API

openapi: 3.0.3
info:
  title: Tomorrow.io Weather Alerts Events API
  description: Unified Tomorrow.io v4 HTTP API for weather and climate intelligence. Combines realtime observations, forecast timelines (minutely, hourly, daily, current), historical data up to 20 years, weather along a route, raster map tiles, plus management surfaces for Locations, Insights, Alerts, and Events.
  version: 4.0.1
  contact:
    name: Tomorrow.io Support
    url: https://www.tomorrow.io/support/
  license:
    name: Tomorrow.io Terms of Service
    url: https://www.tomorrow.io/terms-of-service/
  x-generated-from: documentation
  x-last-validated: '2026-05-30'
servers:
- url: https://api.tomorrow.io/v4
  description: Tomorrow.io v4 production API
security:
- apiKeyQuery: []
tags:
- name: Events
  description: Query events matching insights at a location or buffered geometry.
paths:
  /events:
    get:
      operationId: getEvents
      summary: Tomorrow.io Get Events
      description: Returns events matching the supplied insights at a location, optionally with a kilometer-radius buffer.
      tags:
      - Events
      parameters:
      - name: location
        in: query
        required: true
        schema:
          type: string
        example: 42.3478,-71.0466
      - name: insights
        in: query
        required: true
        description: Comma-separated insight IDs or pre-defined category names.
        schema:
          type: array
          items:
            type: string
        example: hail,thunderstorm
      - name: buffer
        in: query
        required: false
        description: Radius around the location in kilometers.
        schema:
          type: number
          format: float
          default: 1
        example: 1.0
      responses:
        '200':
          description: Events response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventsResponse'
              examples:
                GetEvents200Example:
                  summary: Default getEvents 200 response
                  x-microcks-default: true
                  value:
                    data:
                      events:
                      - insightId: 6183d156022c1b00086860a1
                        startTime: '2026-05-30T15:00:00Z'
                        endTime: '2026-05-30T17:00:00Z'
                        severity: high
                        location:
                          type: Point
                          coordinates:
                          - -71.0466
                          - 42.3478
        '400':
          $ref: '#/components/responses/BadRequest'
        '429':
          $ref: '#/components/responses/TooManyRequests'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    post:
      operationId: postEvents
      summary: Tomorrow.io Post Events
      description: Advanced POST variant of the Events endpoint accepting a full JSON body with GeoJSON geometries.
      tags:
      - Events
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EventsRequest'
            examples:
              PostEventsRequestExample:
                summary: Default postEvents request
                x-microcks-default: true
                value:
                  insights:
                  - hail
                  - thunderstorm
                  buffer: 1.0
      responses:
        '200':
          description: Events response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventsResponse'
              examples:
                PostEvents200Example:
                  summary: Default postEvents 200 response
                  x-microcks-default: true
                  value:
                    data:
                      events:
                      - insightId: 6183d156022c1b00086860a1
                        startTime: '2026-05-30T15:00:00Z'
                        endTime: '2026-05-30T17:00:00Z'
                        severity: high
                        location:
                          type: Point
                          coordinates:
                          - -71.0466
                          - 42.3478
        '400':
          $ref: '#/components/responses/BadRequest'
        '429':
          $ref: '#/components/responses/TooManyRequests'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    EventsRequest:
      type: object
      description: Advanced Events request body.
      properties:
        location:
          oneOf:
          - type: string
          - $ref: '#/components/schemas/GeoJSONGeometry'
        insights:
          type: array
          items:
            type: string
          example:
          - hail
          - thunderstorm
        buffer:
          type: number
          format: float
          default: 1
          description: Radius around the location in km.
      required:
      - location
      - insights
    EventsResponse:
      type: object
      properties:
        data:
          type: object
          properties:
            events:
              type: array
              items:
                $ref: '#/components/schemas/Event'
    GeoJSONGeometry:
      type: object
      description: GeoJSON geometry — Point, LineString, or Polygon.
      properties:
        type:
          type: string
          enum:
          - Point
          - LineString
          - Polygon
          example: Point
        coordinates:
          type: array
          items: {}
          example:
          - -71.0466
          - 42.3478
      required:
      - type
      - coordinates
    Error:
      type: object
      description: Standard Tomorrow.io error envelope.
      properties:
        code:
          type: integer
          example: 400001
          description: Internal error code.
        type:
          type: string
          example: Invalid Body Parameters
          description: Short error type label.
        message:
          type: string
          example: The provided parameters are invalid.
          description: Human-readable error message.
      required:
      - code
      - type
      - message
    Event:
      type: object
      description: A single insight match.
      properties:
        insightId:
          type: string
          example: 6183d156022c1b00086860a1
        startTime:
          type: string
          format: date-time
          example: '2026-05-30T15:00:00Z'
        endTime:
          type: string
          format: date-time
          example: '2026-05-30T17:00:00Z'
        severity:
          type: string
          enum:
          - low
          - medium
          - high
          - critical
          example: high
        location:
          $ref: '#/components/schemas/GeoJSONGeometry'
  responses:
    TooManyRequests:
      description: Rate limit exceeded.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    BadRequest:
      description: Malformed request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    apiKeyQuery:
      type: apiKey
      in: query
      name: apikey
      description: Tomorrow.io API key passed as `apikey` query parameter. Obtain at https://app.tomorrow.io/development/keys.