Website Screenshot MCP

[](https://mseep.ai/app/gourraguis-glasses-mcp) # Glasses MCP: Let Your AI See the Web 👓 [](https://www.npmjs.com/package/glasses-mcp) [](https://opensource.org/licenses/MIT) Your AI assistant is a powerful partner, capable of processing immense amounts of text and code. But when it comes to the visual web, it's flying blind. It can't see the layout of a competitor's landing page, the design of a complex dashboard, or the look of your latest prototype. **Glasses MCP gives it sight.** It's a simple tool that allows your AI to request a perfect, device-specific screenshot of any website. It's not just about taking pictures; it's about giving your AI the context it's been missing, turning the visual web into a resource it can finally understand and interact with. ## Table of Contents - [Features](#features) - [Installation](#installation) - [Method 1: Desktop Extension](#method-1-desktop-extension) - [Method 2: Manual JSON Configuration](#method-2-manual-json-configuration) - [Usage](#usage) - [Example Prompts](#example-prompts) - [Tool Reference: `screenshot`](#tool-reference-screenshot) - [Supported Devices](#supported-devices) - [Error Handling](#error-handling) - [Limitations](#limitations) - [Development & Contributing](#development--contributing) ## Features * **Capture any URL:** Take a screenshot of any public website or local development server. * **Device Emulation:** See how a site looks on a variety of popular phones, tablets, and laptops. * **Selectable Format:** Choose between `png` and `jpeg` image formats. * **Full Page or Viewport:** Capture the entire scrollable page or just the visible viewport. * **Structured Output:** Returns a clear JSON object indicating success or failure. ## Installation You can install Glasses MCP in two ways, depending on your preference and client application. ### Method 1: Desktop Extension This is the easiest way to get started. It allows for one-click installation in compatible clients like Claude Code. 1. **[Download the latest `glasses-mcp.dxt` file](https://github.com/gourraguis/glasses-mcp/releases/download/v1.1.0/glasses-mcp.dxt)**. 2. Open the `.dxt` file with your client application. The client will handle the rest. ### Method 2: Manual JSON Configuration This method uses `npx` to download and run the package on-demand. It's ideal for command-line usage or for developers who prefer not to install the extension directly. To use this method, add the following JSON to your client's configuration file: ```json { "mcpServers": { "glasses": { "command": "npx", "args": ["-y", "glasses-mcp"] } } } ``` **Configuration File Locations:** * **For Claude Desktop:** `~/Library/Application Support/Claude/claude_desktop_config.json` * **For Gemini CLI:** `~/.gemini/settings.json` * **For Cursor IDE:** Your user `settings.json` file. ## Usage Once integrated, you can use prompts like these with your AI assistant. ### Example Prompts Here are a few examples of how you can use Glasses MCP. For a straightforward capture of a homepage, where the AI can infer the filename: > "Take a screenshot of github.com and save it to my desktop." To specify a different image format and save location: > "Get a JPEG screenshot of the latest news on bbc.com/news and save it in my downloads folder." To see how a website looks on a mobile device, specifying the exact output filename: > "Capture the verge.com homepage as it would appear on a small iOS device and save it as `verge-mobile.png`." To capture a local development server, focusing only on the visible portion of the page: > "Capture just the viewport of my local server at `http://localhost:3000`." ### Tool Reference: `screenshot` | Name | Type | Required | Default | Description | |--------------|--------------------------|----------|---------|-------------------------------------------------------| | `url` | `string` | Yes | - | The full URL of the website to capture. | | `outputPath` | `string` | Yes | - | The local file path to save the screenshot to. | | `format` | `"png"` \| `"jpeg"` | No | `"png"` | The output image format. | | `fullPage` | `boolean` | No | `true` | If `true`, captures the entire page. If `false`, captures only the visible viewport. | | `device` | `string` | No | `laptop-hidpi` | The name of the device to emulate (see Supported Devices below). | ### Supported Devices The `screenshot` tool can optionally emulate a specific device, which sets the viewport size, pixel density, and user agent to match. We have curated a list of popular and representative devices to provide good coverage of the most common form factors while keeping the list manageable. | Device Name | Device ID | Category | Represents | |-----------------------------|------------------|----------|------------------------------------------| | `iPhone 14 Pro Max` | `ios-large` | Phone | A large, modern iOS device. | | `iPhone SE` | `ios-small` | Phone | A smaller, older-generation iOS device. | | `Pixel 6 Pro` | `android-large` | Phone | A large, modern Android device. | | `Galaxy S8` | `android-medium` | Phone | A common, slightly older Android device. | | `iPad Pro 11` | `tablet-large` | Tablet | A modern, high-resolution tablet. | | `iPad Mini` | `tablet-small` | Tablet | A smaller, popular tablet format. | | `Laptop with HiDPI screen` | `laptop-hidpi` | Laptop | A high-resolution laptop (e.g., MacBook Pro). | | `Laptop with MDPI screen` | `laptop-mdpi` | Laptop | A standard-resolution laptop. | **Returns:** A JSON object indicating success or failure. ```json { "success": true, "outputPath": "/path/to/your/screenshot.png" } ``` ### Error Handling If the tool encounters an error (e.g., an invalid URL, a website that fails to load), it will return a JSON object with the `isError` flag set to `true` and a descriptive error message. ```json { "success": false, "error": "net::ERR_NAME_NOT_RESOLVED at https://invalid-url-here.com" } ``` ### Limitations * **No Login/Authentication:** The tool cannot log in to websites that require authentication. It can only capture publicly accessible content. * **Anti-Bot Measures:** Some websites employ sophisticated anti-bot technologies that may block the tool from capturing a screenshot. * **Complex Interactions:** The tool does not support complex interactions like clicking buttons, filling out forms, or scrolling to a specific element before taking a screenshot. ## Development & Contributing To contribute to this project: 1. Clone the repository: `git clone https://github.com/gourraguis/glasses-mcp.git` 2. Install dependencies: `cd glasses-mcp && npm install` 3. Build the project: `npm run build` 4. To test your local build, use the [MCP Inspector](https://github.com/modelcontextprotocol/inspector): ```bash npx @modelcontextprotocol/inspector node dist/main.js ```