Microsoft Edge DevTools Protocol HTTP API

openapi: 3.0.3
info:
  title: Microsoft Edge DevTools Protocol HTTP API
  description: >-
    HTTP endpoints for the Microsoft Edge DevTools Protocol, based on the
    Chromium DevTools Protocol. These endpoints allow programmatic discovery
    and management of debuggable browser targets including pages, service
    workers, and extensions. The HTTP API serves as the entry point for
    establishing WebSocket debugging connections to individual targets.
  version: 1.0.0
  contact:
    name: Microsoft Edge Developer
    url: https://developer.microsoft.com/microsoft-edge/
  license:
    name: Microsoft Software License
    url: https://www.microsoft.com/legal/terms-of-use
  x-generated-from: documentation
  x-last-validated: '2026-04-18'
servers:
  - url: http://localhost:9222
    description: Local Edge DevTools debugging endpoint
security: []
tags:
  - name: Targets
    description: Discover and manage debuggable browser targets
  - name: Browser
    description: Browser-level information and management
  - name: Pages
    description: Page target management
paths:
  /json/list:
    get:
      operationId: listTargets
      summary: Microsoft Edge List Debuggable Targets
      description: >-
        Returns a JSON array of all debuggable targets including pages,
        service workers, extensions, and background pages with their
        WebSocket debugger URLs.
      tags:
        - Targets
      responses:
        '200':
          description: List of debuggable targets
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Target'
              examples:
                ListTargets200Example:
                  summary: Default listTargets 200 response
                  x-microcks-default: true
                  value:
                    - description: ''
                      devtoolsFrontendUrl: /devtools/inspector.html?ws=localhost:9222/devtools/page/ABC123
                      id: ABC123
                      title: Example Page
                      type: page
                      url: https://www.example.com
                      webSocketDebuggerUrl: ws://localhost:9222/devtools/page/ABC123
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /json/new:
    put:
      operationId: createTarget
      summary: Microsoft Edge Create New Target
      description: >-
        Opens a new tab navigated to the specified URL and returns the
        new target's debugging information.
      tags:
        - Pages
      parameters:
        - name: url
          in: query
          required: false
          description: URL to navigate the new tab to
          schema:
            type: string
            format: uri
          example: https://www.example.com
      responses:
        '200':
          description: New target created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Target'
              examples:
                CreateTarget200Example:
                  summary: Default createTarget 200 response
                  x-microcks-default: true
                  value:
                    description: ''
                    devtoolsFrontendUrl: /devtools/inspector.html?ws=localhost:9222/devtools/page/DEF456
                    id: DEF456
                    title: New Tab
                    type: page
                    url: https://www.example.com
                    webSocketDebuggerUrl: ws://localhost:9222/devtools/page/DEF456
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /json/activate/{targetId}:
    post:
      operationId: activateTarget
      summary: Microsoft Edge Activate Target
      description: >-
        Brings the specified target to the foreground, making it the
        active page in the browser window.
      tags:
        - Pages
      parameters:
        - name: targetId
          in: path
          required: true
          description: Target identifier
          schema:
            type: string
          example: ABC123
      responses:
        '200':
          description: Target activated successfully
          content:
            text/plain:
              schema:
                type: string
              examples:
                ActivateTarget200Example:
                  summary: Default activateTarget 200 response
                  x-microcks-default: true
                  value: Target activated
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /json/close/{targetId}:
    post:
      operationId: closeTarget
      summary: Microsoft Edge Close Target
      description: >-
        Closes the specified target tab or page.
      tags:
        - Pages
      parameters:
        - name: targetId
          in: path
          required: true
          description: Target identifier
          schema:
            type: string
          example: ABC123
      responses:
        '200':
          description: Target closed successfully
          content:
            text/plain:
              schema:
                type: string
              examples:
                CloseTarget200Example:
                  summary: Default closeTarget 200 response
                  x-microcks-default: true
                  value: Target is closing
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /json/version:
    get:
      operationId: getBrowserVersion
      summary: Microsoft Edge Get Browser Version
      description: >-
        Returns browser version information including the browser name,
        protocol version, user agent string, V8 version, and WebKit version.
      tags:
        - Browser
      responses:
        '200':
          description: Browser version information
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BrowserVersion'
              examples:
                GetBrowserVersion200Example:
                  summary: Default getBrowserVersion 200 response
                  x-microcks-default: true
                  value:
                    Browser: Microsoft Edge/125.0.0.0
                    Protocol-Version: '1.3'
                    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36 Edg/125.0.0.0
                    V8-Version: 12.5.283.0
                    WebKit-Version: 537.36
                    webSocketDebuggerUrl: ws://localhost:9222/devtools/browser/GHI789
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /json/protocol:
    get:
      operationId: getProtocolSchema
      summary: Microsoft Edge Get Protocol Schema
      description: >-
        Returns the complete DevTools Protocol schema in JSON format,
        including all domains, commands, events, and types.
      tags:
        - Browser
      responses:
        '200':
          description: Full protocol schema
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProtocolSchema'
              examples:
                GetProtocolSchema200Example:
                  summary: Default getProtocolSchema 200 response
                  x-microcks-default: true
                  value:
                    version:
                      major: '1'
                      minor: '3'
                    domains:
                      - domain: Page
                        experimental: false
                        commands:
                          - name: navigate
                            parameters:
                              - name: url
                                type: string
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    Target:
      type: object
      description: A debuggable browser target
      properties:
        description:
          type: string
          description: Target description
          example: ''
        devtoolsFrontendUrl:
          type: string
          description: URL to the DevTools frontend for this target
          example: /devtools/inspector.html?ws=localhost:9222/devtools/page/ABC123
        faviconUrl:
          type: string
          description: URL to the target's favicon
          example: https://www.example.com/favicon.ico
        id:
          type: string
          description: Unique target identifier
          example: ABC123
        title:
          type: string
          description: Page title
          example: Example Page
        type:
          type: string
          description: Target type
          enum:
            - page
            - background_page
            - service_worker
            - worker
            - iframe
            - other
          example: page
        url:
          type: string
          format: uri
          description: Current URL of the target
          example: https://www.example.com
        webSocketDebuggerUrl:
          type: string
          description: WebSocket URL for debugging this target
          example: ws://localhost:9222/devtools/page/ABC123
    BrowserVersion:
      type: object
      description: Browser version and protocol information
      properties:
        Browser:
          type: string
          description: Browser name and version
          example: Microsoft Edge/125.0.0.0
        Protocol-Version:
          type: string
          description: DevTools Protocol version
          example: '1.3'
        User-Agent:
          type: string
          description: Full user agent string
          example: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
        V8-Version:
          type: string
          description: V8 JavaScript engine version
          example: 12.5.283.0
        WebKit-Version:
          type: string
          description: WebKit rendering engine version
          example: 537.36
        webSocketDebuggerUrl:
          type: string
          description: WebSocket URL for browser-level debugging
          example: ws://localhost:9222/devtools/browser/GHI789
    ProtocolSchema:
      type: object
      description: DevTools Protocol schema definition
      properties:
        version:
          type: object
          properties:
            major:
              type: string
              example: '1'
            minor:
              type: string
              example: '3'
        domains:
          type: array
          description: Protocol domains
          items:
            type: object
            properties:
              domain:
                type: string
                example: Page
              experimental:
                type: boolean
                example: false
              commands:
                type: array
                items:
                  type: object
                  properties:
                    name:
                      type: string
                    parameters:
                      type: array
                      items:
                        type: object
                        properties:
                          name:
                            type: string
                          type:
                            type: string
              events:
                type: array
                items:
                  type: object
                  properties:
                    name:
                      type: string