Zabbix Authentication API

openapi: 3.2.0
info:
  title: Zabbix Actions Authentication API
  description: The Zabbix API is a JSON-RPC 2.0 HTTP API for programmatically retrieving and modifying the configuration of Zabbix and accessing historical monitoring data. The API is shipped as part of the Zabbix web frontend and accessible at /zabbix/api_jsonrpc.php.
  version: '7.0'
  contact:
    name: Zabbix Support
    url: https://www.zabbix.com/support
  license:
    name: GNU GPL v2
    url: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
  x-logo:
    url: https://www.zabbix.com/assets/img/logo/zabbix_logo.png
servers:
- url: https://{host}/zabbix/api_jsonrpc.php
  description: Zabbix Server JSON-RPC Endpoint
  variables:
    host:
      description: Your Zabbix server hostname
      default: localhost
tags:
- name: Authentication
  description: User login and session management
paths:
  /:
    post:
      operationId: user-login
      summary: User Login
      description: Authenticates a user and creates an API session token. The token must be included in all subsequent API requests.
      tags:
      - Authentication
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/JsonRpcRequest'
            example:
              jsonrpc: '2.0'
              method: user.login
              params:
                username: Admin
                password: zabbix
              id: 1
      responses:
        '200':
          description: Authentication token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonRpcStringResponse'
      x-rpc-method: user.login
  /user.logout:
    post:
      operationId: user-logout
      summary: User Logout
      description: Logs out the user and invalidates the current session token.
      tags:
      - Authentication
      security:
      - ApiToken: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/JsonRpcRequest'
            example:
              jsonrpc: '2.0'
              method: user.logout
              params: []
              id: 2
      responses:
        '200':
          description: Logout result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonRpcBoolResponse'
      x-rpc-method: user.logout
components:
  schemas:
    JsonRpcStringResponse:
      type: object
      properties:
        jsonrpc:
          type: string
        id:
          type: integer
        result:
          type: string
          description: Authentication token
        error:
          $ref: '#/components/schemas/JsonRpcError'
    JsonRpcRequest:
      type: object
      required:
      - jsonrpc
      - method
      - id
      properties:
        jsonrpc:
          type: string
          enum:
          - '2.0'
          description: JSON-RPC protocol version
        method:
          type: string
          description: The API method to call (e.g., host.get, user.login)
        params:
          oneOf:
          - type: object
          - type: array
          description: Method parameters
        id:
          type: integer
          description: Request identifier for correlating responses
        auth:
          type: string
          nullable: true
          description: Authentication token (deprecated in Zabbix 5.4+; use Authorization header)
    JsonRpcBoolResponse:
      type: object
      properties:
        jsonrpc:
          type: string
        id:
          type: integer
        result:
          type: boolean
        error:
          $ref: '#/components/schemas/JsonRpcError'
    JsonRpcError:
      type: object
      properties:
        code:
          type: integer
          description: Error code
        message:
          type: string
          description: Short error description
        data:
          type: string
          description: Detailed error message
  securitySchemes:
    ApiToken:
      type: apiKey
      in: header
      name: Authorization
      description: Zabbix API token obtained via user.login. Pass as "Bearer {token}" in the Authorization header (Zabbix 5.4+), or in the auth field of the JSON-RPC request body.