Azure Load Balancer
Azure Load Balancer REST API

Azure Load Balancer REST API provides management of layer-4 load balancers for distributing network traffic across virtual machines. It supports configuring frontend IPs, backend pools, health probes, load balancing rules, and inbound NAT rules.
Documentation GitHub OpenAPI
OpenAPI Specification

openapi: 3.1.0
info:
  title: Azure Load Balancer REST API
  description: Azure Load Balancer distributes incoming network traffic across backend resources. The
    REST API manages load balancers, frontend IP configurations, backend pools, load balancing rules,
    and probes.
  version: '2024-01-01'
externalDocs:
  description: Azure Load Balancer REST API Documentation
  url: https://learn.microsoft.com/en-us/azure/load-balancer/
servers:
- url: https://management.azure.com
  description: Azure Resource Manager
tags:
- name: Load Balancers
  description: Load Balancers operations
- name: Backend Pools
  description: Backend Pools operations
- name: Load Balancing Rules
  description: Load Balancing Rules operations
- name: Probes
  description: Probes operations
- name: Operations
  description: Operations operations
security:
- azure_auth:
  - user_impersonation
paths:
  /providers/Microsoft.Network/operations:
    get:
      operationId: listOperations
      summary: Azure Load Balancer REST API List operations
      description: Lists all available REST API operations for Microsoft.Network.
      tags:
      - Operations
      parameters:
      - $ref: '#/components/parameters/apiVersion'
      responses:
        '200':
          description: Operations list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OperationList'
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /subscriptions/{subscriptionId}/providers/Microsoft.Network/loadBalancers:
    get:
      operationId: listLoadbalancersBySubscription
      summary: Azure Load Balancer REST API List by subscription
      description: Lists all loadBalancers resources within the specified subscription.
      tags:
      - Load Balancers
      parameters:
      - $ref: '#/components/parameters/subscriptionId'
      - $ref: '#/components/parameters/apiVersion'
      responses:
        '200':
          description: Resource list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResourceList'
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/loadBalancers:
    get:
      operationId: listLoadbalancersByResourceGroup
      summary: Azure Load Balancer REST API List by resource group
      description: Lists all loadBalancers resources within the specified resource group.
      tags:
      - Load Balancers
      parameters:
      - $ref: '#/components/parameters/subscriptionId'
      - $ref: '#/components/parameters/resourceGroupName'
      - $ref: '#/components/parameters/apiVersion'
      responses:
        '200':
          description: Resource list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ResourceList'
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/loadBalancers/{name}:
    parameters:
    - $ref: '#/components/parameters/subscriptionId'
    - $ref: '#/components/parameters/resourceGroupName'
    - name: name
      in: path
      required: true
      description: Name of the resource.
      schema:
        type: string
    - $ref: '#/components/parameters/apiVersion'
    get:
      operationId: getLoadbalancers
      summary: Azure Load Balancer REST API Get resource
      description: Gets a specific loadBalancers resource.
      tags:
      - Load Balancers
      responses:
        '200':
          description: Resource
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Resource'
        '404':
          description: Not found
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    put:
      operationId: createOrUpdateLoadbalancers
      summary: Azure Load Balancer REST API Create or update resource
      description: Creates or updates a loadBalancers resource.
      tags:
      - Load Balancers
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Resource'
      responses:
        '200':
          description: Resource updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Resource'
        '201':
          description: Resource created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Resource'
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    patch:
      operationId: updateLoadbalancers
      summary: Azure Load Balancer REST API Update resource
      description: Updates a loadBalancers resource.
      tags:
      - Load Balancers
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: Resource updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Resource'
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    delete:
      operationId: deleteLoadbalancers
      summary: Azure Load Balancer REST API Delete resource
      description: Deletes a loadBalancers resource.
      tags:
      - Load Balancers
      responses:
        '200':
          description: Resource deleted
        '202':
          description: Deletion accepted
        '204':
          description: Resource not found or already deleted
        default:
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  parameters:
    subscriptionId:
      name: subscriptionId
      in: path
      required: true
      description: The ID of the target subscription.
      schema:
        type: string
    resourceGroupName:
      name: resourceGroupName
      in: path
      required: true
      description: The name of the resource group.
      schema:
        type: string
    apiVersion:
      name: api-version
      in: query
      required: true
      description: The API version to use for this operation.
      schema:
        type: string
  schemas:
    Resource:
      type: object
      properties:
        id:
          type: string
          description: Resource ID.
        name:
          type: string
          description: Resource name.
        type:
          type: string
          description: Resource type.
        location:
          type: string
          description: Resource location.
        tags:
          type: object
          additionalProperties:
            type: string
        properties:
          type: object
          description: Resource-specific properties.
    ResourceList:
      type: object
      properties:
        value:
          type: array
          items:
            $ref: '#/components/schemas/Resource'
        nextLink:
          type: string
          description: URL to the next page of results.
    ErrorResponse:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            target:
              type: string
    Operation:
      type: object
      properties:
        name:
          type: string
        display:
          type: object
          properties:
            provider:
              type: string
            resource:
              type: string
            operation:
              type: string
            description:
              type: string
        isDataAction:
          type: boolean
    OperationList:
      type: object
      properties:
        value:
          type: array
          items:
            $ref: '#/components/schemas/Operation'
        nextLink:
          type: string
  securitySchemes:
    azure_auth:
      type: oauth2
      description: Azure Active Directory OAuth2 Flow.
      flows:
        implicit:
          authorizationUrl: https://login.microsoftonline.com/common/oauth2/authorize
          scopes:
            user_impersonation: Impersonate your user account
x-generated-from: https://learn.microsoft.com/en-us/azure/load-balancer/
x-generated-by: claude-crawl-2026-05-08
Azure Load Balancer REST API

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OpenAPI Specification
