Playwright MCP
P

Playwright MCP

Playwright MCP is a browser automation server based on Playwright. It interacts with web pages through structured accessibility snapshots, without the need for screenshots or visual models, providing lightweight and efficient web page operation capabilities for LLMs.
2 points
4.9K

What is Playwright MCP?

Playwright MCP is a Model Context Protocol server based on the Playwright framework. It allows language models to interact with web pages through structured data rather than relying on traditional screenshots or visual models. The server provides an accessibility snapshot of the web page, enabling the LLM to understand and operate on web page elements.

How to use Playwright MCP?

Simply configure the MCP server in supported clients (such as VS Code, Cursor, etc.) to start interacting with web pages through simple commands. The server supports two modes: the default snapshot mode and the optional visual mode.

Applicable scenarios

Suitable for scenarios that require automated web page operations, such as data scraping, form filling, web page testing, content extraction, etc. Particularly suitable for tasks that require precise control of web page elements rather than visual recognition.

Main features

Accessibility snapshot
Provides a structured accessibility tree of the web page instead of a pixel screenshot, enabling the LLM to accurately understand the page structure.
Multi-browser support
Supports multiple browser engines such as Chromium, Firefox, WebKit, and Edge.
Dual-mode operation
Provides two interaction methods: snapshot mode (default) and visual mode (--vision option).
User profile management
Supports persistent user profiles and isolated sessions to meet different privacy requirements.
Network request control
Allows configuration of allowed/blocked request sources to enhance security and performance.
Advantages
Lightweight and efficient: Based on structured data rather than pixel processing, with low resource consumption.
Precise control: Operates more accurately through element references rather than visual positioning.
Cross-platform: Supports multiple browsers and operating systems.
Scalable: Supports Docker containerized deployment.
Privacy protection: Allows configuration of isolated sessions without leaving browsing traces.
Limitations
Limited ability to recognize visual elements (unless using the --vision mode).
Requires Node.js environment support.
May have limited support for web pages with rich dynamic content.
Learning curve: Requires understanding of the MCP protocol and Playwright concepts.

How to use

Installation preparation
Ensure that Node.js 18 or a higher version is installed on the system.
Client configuration
Add the MCP server configuration in the supported client.
Start the server
Select the startup method according to your needs: regular mode or Docker container.
Start interacting
Interact with the web page through the provided tools, such as navigation, clicking, inputting, etc.

Usage examples

Web page data extraction
Extract structured data from the target web page.
Form automation filling
Automatically fill in and submit web page forms.
Web page function testing
Automatically test the web page function flow.

Frequently Asked Questions

How is Playwright MCP different from regular Playwright?
Why do element operations sometimes fail?
How to save the login state?
Does it support mobile web page testing?
How to improve the reliability of operations?

Related resources

Playwright official documentation
Complete documentation for the Playwright framework.
MCP protocol specification
The official specification of the Model Context Protocol.
GitHub repository
Source code and issue tracking for Playwright MCP.
Installation demonstration video
Step-by-step demonstration of Playwright MCP installation and configuration.

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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