Playwright MCP
P

Playwright MCP

Playwright MCP is a browser automation server based on Playwright that interacts with web pages through structured accessibility snapshots without relying on visual models or screenshots, providing lightweight and efficient web page operation capabilities.
2 points
8.0K

What is Playwright MCP?

Playwright MCP is a server based on the Model Context Protocol that provides browser automation capabilities through Playwright. It allows LLMs to interact with web pages through structured accessibility snapshots without relying on screenshots or visual models.

How to use Playwright MCP?

Simply configure the MCP server in a supported client (such as VS Code) to start automated web page operations. Two modes are supported: the default snapshot mode (using the accessibility tree) and the visual mode (using screenshots).

Applicable scenarios

Scenarios that require programmatic interaction with web pages, such as web page automation testing, data scraping, form filling, and web content analysis. It is particularly suitable for operations that require precise element positioning.

Main features

Accessibility snapshot
Use Playwright's accessibility tree instead of pixel input to provide a lightweight and reliable representation of the page structure
LLM-friendly
Purely structured data operations without the need for visual models, making it particularly suitable for language model processing
Deterministic tool application
Avoid the common ambiguity problems of screenshot-based methods and provide precise element positioning and operations
Dual-mode support
Supports the snapshot mode (default) and the visual mode (--vision parameter) to adapt to different usage scenarios
Multi-client support
Compatible with various MCP clients such as VS Code, Cursor, Windsurf, and Claude Desktop
Advantages
Faster and lighter than screenshot-based methods
Provides precise element positioning capabilities
Supports persistent user session configuration
Rich interaction functions (clicking, inputting, dragging and dropping, etc.)
Multi-browser support (Chrome, Firefox, Webkit, etc.)
Limitations
Requires a Node.js 18+ runtime environment
The visual mode requires additional configuration
Some complex web page elements may require special handling
The Docker version currently only supports headless Chrome

How to use

Installation preparation
Ensure that Node.js 18 or a later version is installed on the system
Client configuration
Add the Playwright MCP server configuration to the client you are using
Start the server
The client will automatically start the MCP server, or manually run the start command
Start using
Interact with Playwright MCP through the client interface or API

Usage examples

Automated form filling
Automatically log in to a website and fill in form data
Web content extraction
Extract the headlines from a news website
Web page screenshot archiving
Regularly take screenshots of important web pages for archiving

Frequently Asked Questions

How to solve the error of the browser not being installed?
How to maintain the login state?
Which browsers are supported?
How to debug problems?

Related resources

Playwright official documentation
Complete documentation for the Playwright framework
MCP protocol specification
Official description of the Model Context Protocol
GitHub repository
Project source code and issue tracking
VS Code extension
Playwright test extension for VS Code

Installation

Copy the following command to your Client for configuration
Note: Your key is sensitive information, do not share it with anyone.

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