openapi: 3.2.0
info:
  title: ROOTE Usage API
  version: 2.0.0
  description: Worldwide live mobility near a coordinate.
servers:
- url: https://api.roote.ai
  description: ROOTE API
tags:
- name: Usage
paths:
  /usage/cities:
    get:
      operationId: publicCityUsage
      security: []
      summary: Public ranking of useful city searches
      description: Aggregated, privacy-safe usage by stable city identifier. No coordinates, users, projects, tokens or event rows are exposed.
      parameters:
      - name: period
        in: query
        required: false
        schema:
          type: string
          enum:
          - 24h
          - 7d
          - 30d
          - 90d
          default: 30d
        description: Aggregation period
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 25
        description: Page size
      - name: offset
        in: query
        required: false
        schema:
          type: integer
          minimum: 0
          default: 0
        description: Deterministic pagination offset
      responses:
        '200':
          description: Public geographic usage aggregates
          content:
            application/json:
              schema:
                type: object
                required:
                - metric_version
                - period
                - updated_at
                - coverage_started_at
                - coverage_complete
                - items
                - pagination
                properties:
                  metric_version:
                    type: string
                    const: '1'
                  period:
                    type: string
                  updated_at:
                    type:
                    - string
                    - 'null'
                    format: date-time
                  coverage_started_at:
                    type:
                    - string
                    - 'null'
                    format: date
                  coverage_complete:
                    type: boolean
                  publication_threshold:
                    type: integer
                  items:
                    type: array
                    items:
                      type: object
                      required:
                      - city_id
                      - name
                      - country
                      - admin_level
                      - useful_searches
                      - requests_with_results
                      - families
                      properties:
                        city_id:
                          type: string
                        name:
                          type: string
                        country:
                          type: string
                        admin_level:
                          type: string
                        useful_searches:
                          type: integer
                        requests_with_results:
                          type: integer
                        families:
                          type: object
                          additionalProperties:
                            type: integer
                  pagination:
                    type: object
        '400':
          description: Invalid request
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
      tags:
      - Usage
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: rt_live_...