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Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

#playwright #web-automation #testing-framework

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-your-bot-token",
        "SLACK_TEAM_ID": "T01234567"
      }
    }
  }
}

Tools

List public or pre-defined channels in the workspace with pagination

Post a new message to a Slack channel

Reply to a specific message thread in Slack

Add a reaction emoji to a message

Get recent messages from a channel

Get all replies in a message thread

Get a list of all users in the workspace with their basic profile information

Get detailed profile information for a specific user

Overview

What is Playwright?

Playwright is a framework for web automation and testing that drives Chromium, Firefox, and WebKit with a single API. It is designed for end-to-end tests, browser automation scripts, and as a tool for AI agents. The Playwright MCP server specifically gives AI agents full browser control through the Model Context Protocol (MCP), using structured accessibility snapshots instead of vision models or screenshots.

How to use Playwright?

To use Playwright as an MCP server for AI agents, add it to your MCP client (VS Code, Cursor, Claude Desktop, Windsurf, etc.) with the command npx @playwright/mcp@latest. For Claude Code, run claude mcp add playwright npx @playwright/mcp@latest. The agent then interacts with pages via tools that navigate, fill forms, take screenshots, mock networks, and manage storage – all using element references from the accessibility tree.

Key features of Playwright

Cross-browser automation (Chromium, Firefox, WebKit) on Linux, macOS, Windows
Structured accessibility snapshots for AI agents without vision models
Auto-wait and web-first assertions with no artificial timeouts
Resilient locators based on role, label, placeholder, or test ID
Test isolation with fresh browser contexts per test
Tracing, screenshots, and video capture on test failures

Use cases of Playwright

End-to-end testing across browsers with Playwright Test
AI agent web automation via the MCP server
Web scraping, PDF generation, and screenshot capture using the Playwright Library
Test authoring and debugging within VS Code using the extension
Cross-browser validation in continuous integration pipelines

FAQ from Playwright

What browsers does Playwright support?

Playwright supports Chromium, Firefox, and WebKit on Linux, macOS, and Windows, with both headless and headed execution.

How does Playwright MCP allow AI agents to interact with pages without vision?

It uses structured accessibility snapshots that present the page as a tree of elements with references (e.g., ref=e5). Agents use these refs to click, type, and interact deterministically, without visual ambiguity.

Can Playwright be used for end-to-end testing?

Yes, Playwright Test is a full-featured test runner built for end-to-end testing, providing auto-waiting, web-first assertions, parallel execution, and full browser isolation.

Does Playwright have a VS Code extension?

Yes, the Playwright VS Code extension adds test running, debugging, code generation (CodeGen), locator picker, and trace viewer integration directly into the editor.

Is Playwright available in other programming languages?

Yes, Playwright is also available for Python, .NET, and Java.

Frequently asked questions