openapi: 3.1.0
info:
  title: Utility Accounting Meters API
  description: UtilityAPI provides a REST API for collecting, standardizing, and sharing utility data including meters, bills, intervals, authorizations, and webhook events. Supports the Green Button standard for energy data sharing.
  version: '2'
  contact:
    name: UtilityAPI Support
    url: https://utilityapi.com/contact
  termsOfService: https://utilityapi.com/terms
servers:
- url: https://utilityapi.com/api/v2
  description: UtilityAPI Production Server
security:
- bearerAuth: []
tags:
- name: Meters
  description: Utility services and meter data for authorized customers
paths:
  /meters:
    get:
      operationId: listMeters
      summary: List Meters
      description: List all utility meters for authorized customers.
      tags:
      - Meters
      parameters:
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          default: 100
      - name: next
        in: query
        required: false
        schema:
          type: string
      - name: authorization_uid
        in: query
        description: Filter meters by authorization UID
        required: false
        schema:
          type: string
      responses:
        '200':
          description: List of meters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MeterList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /meters/{uid}:
    get:
      operationId: getMeter
      summary: Get Meter
      description: Retrieve a specific utility meter by UID.
      tags:
      - Meters
      parameters:
      - $ref: '#/components/parameters/uid'
      responses:
        '200':
          description: Meter details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Meter'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: modifyMeter
      summary: Modify Meter
      description: Update metadata on a meter.
      tags:
      - Meters
      parameters:
      - $ref: '#/components/parameters/uid'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MeterUpdate'
      responses:
        '200':
          description: Updated meter
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Meter'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /meters/{uid}/collect:
    post:
      operationId: collectMeterData
      summary: Collect Meter Data
      description: Trigger data collection for a utility meter.
      tags:
      - Meters
      parameters:
      - $ref: '#/components/parameters/uid'
      responses:
        '200':
          description: Collection initiated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MeterCollect'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /meters/{uid}/monitor:
    post:
      operationId: monitorMeterData
      summary: Monitor Meter Data
      description: Enable ongoing monitoring for a utility meter to receive automatic data updates.
      tags:
      - Meters
      parameters:
      - $ref: '#/components/parameters/uid'
      responses:
        '200':
          description: Monitoring enabled
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MeterMonitor'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    MeterUpdate:
      type: object
      properties:
        metadata:
          type: object
    Meter:
      type: object
      properties:
        uid:
          type: string
        authorization_uid:
          type: string
        utility:
          type: string
        service_address:
          type: string
        meter_number:
          type: string
        service_class:
          type: string
          enum:
          - ELECTRIC
          - GAS
          - WATER
        status:
          type: string
        created:
          type: string
          format: date-time
        modified:
          type: string
          format: date-time
    Error:
      type: object
      properties:
        errors:
          type: array
          items:
            type: string
        status:
          type: string
    MeterMonitor:
      type: object
      properties:
        uid:
          type: string
        monitoring:
          type: boolean
        message:
          type: string
    MeterList:
      type: object
      properties:
        meters:
          type: array
          items:
            $ref: '#/components/schemas/Meter'
        next:
          type: string
    MeterCollect:
      type: object
      properties:
        uid:
          type: string
        status:
          type: string
        message:
          type: string
  responses:
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Missing or invalid authentication token
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  parameters:
    uid:
      name: uid
      in: path
      required: true
      description: Unique identifier of the resource
      schema:
        type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: API token from the UtilityAPI dashboard
externalDocs:
  description: UtilityAPI Documentation
  url: https://utilityapi.com/docs