openapi: 3.1.0
info:
  title: Orb Alerts API
  description: Orb is a usage-based billing and metering platform. The REST API ingests timestamped usage events, models customers, plans, prices, items, and billable metrics, manages subscriptions, and automates invoicing, credit ledgers, coupons, alerts, and webhooks. All endpoints are served over HTTPS at https://api.withorb.com/v1 and authenticated with a Bearer API key.
  termsOfService: https://www.withorb.com/legal/terms-of-service
  contact:
    name: Orb Support
    url: https://www.withorb.com
    email: team@withorb.com
  version: '1.0'
servers:
- url: https://api.withorb.com/v1
  description: Orb production API
security:
- bearerAuth: []
tags:
- name: Alerts
paths:
  /alerts:
    get:
      operationId: listAlerts
      tags:
      - Alerts
      summary: List alerts
      parameters:
      - name: customer_id
        in: query
        schema:
          type: string
      - name: subscription_id
        in: query
        schema:
          type: string
      - $ref: '#/components/parameters/Cursor'
      - $ref: '#/components/parameters/Limit'
      responses:
        '200':
          description: A paginated list of alerts.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AlertList'
    post:
      operationId: createAlert
      tags:
      - Alerts
      summary: Create alert
      description: Creates a usage, cost, or credit-balance alert on a customer or subscription.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AlertCreate'
      responses:
        '201':
          description: The newly created alert.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Alert'
  /alerts/{alert_id}:
    parameters:
    - name: alert_id
      in: path
      required: true
      schema:
        type: string
    get:
      operationId: fetchAlert
      tags:
      - Alerts
      summary: Fetch alert
      responses:
        '200':
          description: The requested alert.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Alert'
  /alerts/{alert_id}/enable:
    parameters:
    - name: alert_id
      in: path
      required: true
      schema:
        type: string
    post:
      operationId: enableAlert
      tags:
      - Alerts
      summary: Enable alert
      responses:
        '200':
          description: The enabled alert.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Alert'
  /alerts/{alert_id}/disable:
    parameters:
    - name: alert_id
      in: path
      required: true
      schema:
        type: string
    post:
      operationId: disableAlert
      tags:
      - Alerts
      summary: Disable alert
      responses:
        '200':
          description: The disabled alert.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Alert'
components:
  parameters:
    Limit:
      name: limit
      in: query
      description: The number of items to return per page (default 20, max 100).
      schema:
        type: integer
        default: 20
        maximum: 100
    Cursor:
      name: cursor
      in: query
      description: An opaque cursor for the next page of results.
      schema:
        type: string
  schemas:
    PaginationMetadata:
      type: object
      properties:
        has_more:
          type: boolean
        next_cursor:
          type: string
          nullable: true
    AlertCreate:
      type: object
      required:
      - type
      properties:
        type:
          type: string
          enum:
          - usage_exceeded
          - cost_exceeded
          - credit_balance_depleted
          - credit_balance_dropped
          - credit_balance_recovered
        customer_id:
          type: string
        external_customer_id:
          type: string
        subscription_id:
          type: string
        currency:
          type: string
        thresholds:
          type: array
          items:
            type: object
            required:
            - value
            properties:
              value:
                type: number
    AlertList:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Alert'
        pagination_metadata:
          $ref: '#/components/schemas/PaginationMetadata'
    Alert:
      type: object
      properties:
        id:
          type: string
        type:
          type: string
          enum:
          - usage_exceeded
          - cost_exceeded
          - credit_balance_depleted
          - credit_balance_dropped
          - credit_balance_recovered
        enabled:
          type: boolean
        customer:
          type: object
          nullable: true
          properties:
            id:
              type: string
            external_customer_id:
              type: string
        subscription:
          type: object
          nullable: true
          properties:
            id:
              type: string
        currency:
          type: string
          nullable: true
        thresholds:
          type: array
          items:
            type: object
            properties:
              value:
                type: number
        created_at:
          type: string
          format: date-time
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Authenticate with an Orb API key sent as a Bearer token in the Authorization header: `Authorization: Bearer <ORB_API_KEY>`.'