openapi: 3.1.0
info:
  title: CloudZero Allocation Telemetry Budgets API
  description: The CloudZero API V2 enables you to automate the collection, allocation, and analysis of your infrastructure spend. It is organized around REST with predictable resource-oriented URLs, accepts JSON request bodies, returns JSON responses, and uses standard HTTP methods, headers, response codes, and authentication.
  version: 2.0.0
  contact:
    name: CloudZero
    url: https://www.cloudzero.com/
  termsOfService: https://www.cloudzero.com/terms-of-service
servers:
- url: https://api.cloudzero.com
  description: CloudZero Production API
security:
- apiKey: []
tags:
- name: Budgets
  description: Create, read, update, and delete budgets for cost tracking.
paths:
  /v2/budgets:
    get:
      operationId: getBudgets
      summary: CloudZero Get all budgets
      description: Returns a list of all budgets.
      tags:
      - Budgets
      parameters:
      - name: page
        in: query
        schema:
          type: integer
        description: Page number for pagination.
      - name: page_size
        in: query
        schema:
          type: integer
        description: Number of results per page.
      responses:
        '200':
          description: Successful response with list of budgets.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Budget'
                  pagination:
                    $ref: '#/components/schemas/Pagination'
        '401':
          description: Unauthorized. Invalid or missing API key.
        '403':
          description: Forbidden.
    post:
      operationId: createBudget
      summary: CloudZero Create a new budget
      description: Creates a new budget linked to a View for tracking spend against business metrics.
      tags:
      - Budgets
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BudgetInput'
      responses:
        '201':
          description: Budget created successfully.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Budget'
        '400':
          description: Bad request.
        '401':
          description: Unauthorized. Invalid or missing API key.
        '403':
          description: Forbidden.
  /v2/budgets/{budget_id}:
    get:
      operationId: getOneBudget
      summary: CloudZero Get a single budget
      description: Returns a single budget by its identifier.
      tags:
      - Budgets
      parameters:
      - name: budget_id
        in: path
        required: true
        schema:
          type: string
        description: Unique identifier for the budget.
      responses:
        '200':
          description: Successful response with budget data.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Budget'
        '401':
          description: Unauthorized. Invalid or missing API key.
        '403':
          description: Forbidden.
        '404':
          description: Budget not found.
    put:
      operationId: updateOneBudget
      summary: CloudZero Update a budget
      description: Updates an existing budget.
      tags:
      - Budgets
      parameters:
      - name: budget_id
        in: path
        required: true
        schema:
          type: string
        description: Unique identifier for the budget.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BudgetInput'
      responses:
        '200':
          description: Budget updated successfully.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/Budget'
        '400':
          description: Bad request.
        '401':
          description: Unauthorized. Invalid or missing API key.
        '403':
          description: Forbidden.
        '404':
          description: Budget not found.
    delete:
      operationId: deleteOneBudget
      summary: CloudZero Delete a budget
      description: Deletes a single budget by its identifier.
      tags:
      - Budgets
      parameters:
      - name: budget_id
        in: path
        required: true
        schema:
          type: string
        description: Unique identifier for the budget.
      responses:
        '204':
          description: Budget deleted successfully.
        '401':
          description: Unauthorized. Invalid or missing API key.
        '403':
          description: Forbidden.
        '404':
          description: Budget not found.
components:
  schemas:
    Pagination:
      type: object
      properties:
        next:
          type: string
          description: URL for the next page of results.
        previous:
          type: string
          description: URL for the previous page of results.
        total:
          type: integer
          description: Total number of results.
    BudgetInput:
      type: object
      properties:
        name:
          type: string
          description: Display name for the budget.
        amount:
          type: number
          format: double
          description: Budget amount.
        period:
          type: string
          enum:
          - monthly
          - quarterly
          - annual
          description: Budget period.
        view_id:
          type: string
          description: Identifier for the linked View.
        notifications:
          type: array
          items:
            type: object
            properties:
              threshold:
                type: number
                format: double
              recipients:
                type: array
                items:
                  type: string
          description: Notification rules for the budget.
      required:
      - name
      - amount
      - period
    Budget:
      type: object
      properties:
        id:
          type: string
          description: Unique identifier for the budget.
        name:
          type: string
          description: Display name for the budget.
        amount:
          type: number
          format: double
          description: Budget amount.
        period:
          type: string
          enum:
          - monthly
          - quarterly
          - annual
          description: Budget period.
        view_id:
          type: string
          description: Identifier for the linked View.
        notifications:
          type: array
          items:
            type: object
            properties:
              threshold:
                type: number
                format: double
                description: Threshold percentage for notification.
              recipients:
                type: array
                items:
                  type: string
                description: Email addresses for notification recipients.
          description: Notification rules for the budget.
        created_at:
          type: string
          format: date-time
          description: Timestamp when the budget was created.
        updated_at:
          type: string
          format: date-time
          description: Timestamp when the budget was last updated.
  securitySchemes:
    apiKey:
      type: apiKey
      name: Authorization
      in: header
      description: API key for authentication. Include your API key directly in the Authorization header.