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cloudflare-playwright-mcp

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Cloudflare Playwright MCP Example

Deploy to Cloudflare

Overview

This project demonstrates how to use Playwright with Cloudflare Workers as a Model Control Protocol (MCP) server using Cloudflare Playwright MCP.

It enables AI assistants to control a browser through a set of tools, allowing them to perform web automation tasks like navigation, typing, clicking, and taking screenshots.

The server can be used with various AI platforms including Cloudflare AI Playground, Claude Desktop, and GitHub Copilot in VS Code.

Deploy

Follow these steps to set up and deploy the project:

  1. Install dependencies:

npm ci

  1. Deploy to Cloudflare Workers:

npx wrangler deploy

Use with Cloudflare AI Playground

alt text

Cloudflare playground AI is a great way to test MCP servers using LLM models available in Workers AI.

  • Navigate to https://playground.ai.cloudflare.com/

  • Ensure model is set to llama-3.3-70b-instruct-fp8-fast

  • In MCP Servers, set URL to https://[my-mcp-url].workers.dev/sse

  • Click Connect

  • Status should update to Connected and it should list 14 available tools

You can now start to interact with the model, and it will run necessary tools to accomplish what was requested.

TIP

For best results, give simple instructions consisting of one single action, e. g., "Create a new todo entry", "Go to cloudflare site", "Take a screenshot"

Example of a conversation:

Role

Message

User

Go to demo.playwright.dev/todomvc

Assistant

runs browser_navigate tool The page has been navigated to https://demo.playwright.dev/todomvc/. The page title is "React • TodoMVC". The page snapshot shows the content of the page, including a heading, a textbox, and several links.

User

Create some todo entry

Assistant

runs browser_type tool A new todo entry "Buy groceries" has been created. The page snapshot shows the updated content of the page, including the new todo entry.

User

Nice. Now create a todo in parrot style

Assistant

runs browser_type tool A new todo entry "Polly wants a cracker" has been created in parrot style. The page snapshot shows the updated content of the page, including the new todo entry.

User

And create another todo in yoda style

Assistant

runs browser_type tool A new todo entry "A walk, I must take" has been created in Yoda style. The page snapshot shows the updated content of the page, including the new todo entry.

User

Take a screenshot

Assistant

runs browser_take_screenshot tool alt text A screenshot of the current page has been taken. The screenshot is in PNG format and is 56KB in size.

User

Now click the checkbox of the parrot todo entry

Assistant

runs browser_clickt tool The checkbox of the parrot todo entry "Polly wants a cracker" has been clicked. The page snapshot shows the updated content of the page, with the checkbox now checked.

User

Take a screenshot

Assistant

runs browser_take_screenshot tool alt text A screenshot of the current page has been taken. The screenshot is in PNG format and is 58KB in size.

User

Remove completed todo entries

Assistant

runs browser_clickt tool The "Clear completed" button has been clicked. The page snapshot shows the updated content of the page, with the completed todo entry "Polly wants a cracker" removed.

User

Take a final screenshot

Assistant

runs browser_take_screenshot tool alt text A final screenshot of the current page has been taken. The screenshot is in PNG format and is 50KB in size.

Use with Claude Desktop

As of now, Claude Desktop only supports local MCP servers. To use playground-mcp with Claude Desktop we make use of mcp-remote, a tool that proxies remote MCP servers and exposes them locally. Use the following configuration:

  1. Open the configuration file for Claude Desktop.

  2. Add the following JSON snippet under the mcpServers section:

{
  "mcpServers": {
    "cloudflare-playwright-mcp": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://[my-mcp-url].workers.dev/sse"
      ]
    }
  }
}

  1. Save the configuration file and restart Claude Desktop to apply the changes.

This setup ensures that Claude Desktop can communicate with the Cloudflare Playwright MCP server.

Here's an example of a session opening the TODO demo app, adding "buy lemons" and doing a screenshot, taking advantage of playwright-mcp tools and Browser Rendering:

alt text

Configure in VSCode

You can install the Playwright MCP server using the VS Code CLI:

# For VS Code
code --add-mcp '{"name":"cloudflare-playwright","type":"sse","url":"https://[my-mcp-url].workers.dev/sse"}'
# For VS Code Insiders
code-insiders --add-mcp '{"name":"cloudflare-playwright","type":"sse","url":"https://[my-mcp-url].workers.dev/sse"}'

After installation, the Playwright MCP server will be available for use with your GitHub Copilot agent in VS Code.

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Resources

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