What is the difference between cloud mode and local mode?
In cloud mode, browser sessions are managed via the Steel cloud service (requires `STEEL_API_KEY`). In local mode, you run your own Steel Docker container and no API key is needed.
Steel MCP Server
@steel-dev
基本情報
Steel MCP Server について
MCP Server for interacting with a Steel web browser
Steel MCP Server の設定
以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。
{
"mcpServers": {
"steel-mcp-server": {
"command": "npx",
"args": [
"-y",
"@smithery/cli",
"install",
"@steel-dev/steel-mcp-server",
"--client",
"claude"
]
}
}
}Steel MCP Server のツール
9Navigate to any URL in the browser
Perform a Google search by navigating to "https://www.google.com/search?q=encodedQuery".
Click elements on the page using numbered labels
Type text into input fields using numbered labels
Scroll down the page
Scroll up the page
Navigate to the previous page in browser history
Wait for up to 10 seconds, useful for pages that load slowly or need more time for dynamic content to appear.
Capture the current page without bounding boxes or highlights and store it as a resource.
概要
What is Steel MCP Server?
A Model Context Protocol (MCP) server that enables LLMs like Claude to navigate the web through Puppeteer-based tools and Steel. Based on the Web Voyager framework, it provides tools for all standard web actions—clicking, scrolling, typing, and taking screenshots.
How to use Steel MCP Server?
Install via Smithery (npx -y @smithery/cli install @steel-dev/steel-mcp-server --client claude) or clone, npm install, npm run build, then configure Claude Desktop with environment variables. Choose cloud mode (requires a Steel API key) or local/self-hosted mode (requires a running Steel Docker instance). The server starts automatically with Claude Desktop.
Key features of Steel MCP Server
- Browser automation with Puppeteer
- Steel integration for browser session management
- Visual element identification via numbered labels
- Screenshot capture and resource retrieval
- Basic web interaction (navigate, click, type)
- Lazy-loading support through scrolling
Use cases of Steel MCP Server
- Search for a recipe and save the ingredients list
- Track a package delivery status
- Find and compare prices for a specific product
- Fill out an online job application
よくある質問
What are the prerequisites to run Steel MCP Server?
You need Git, Node.js, and Claude Desktop installed. For local mode, you also need the Steel Docker image running locally.
How do I get a Steel API key?
You can obtain one from the Steel dashboard at [https://app.steel.dev/settings/api-keys](https://app.steel.dev/settings/api-keys).
What tools does Steel MCP Server provide?
It provides `navigate`, `search`, `click`, `type`, `scroll_down`, `scroll_up`, `go_back`, `wait`, and `save_unmarked_screenshot` tools, all driven by numbered labels on interactive elements.
Can I view active browser sessions?
Yes. In cloud mode, sessions appear in the Steel dashboard. In local mode, visit the self-hosted dashboard at `http://localhost:5173`.
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