Browser Automation · Developer Tools

Steel MCP Server logo

Steel MCP Server

steel-dev/steel-mcp-server

Give Claude, Cursor, or any MCP client a real Chrome in the cloud. Read pages that block a plain fetch, fill forms, take screenshots, and hand the browser to a person when a login or a CAPTCHA needs one. The browser is run by Steel.

Install

npx -y github:steel-dev/steel-mcp-server

Client configuration

{
  "mcpServers": {
    "steel": {
      "command": "npx",
      "args": [
        "-y",
        "github:steel-dev/steel-mcp-server"
      ],
      "env": {
        "STEEL_API_KEY": "<STEEL_API_KEY>"
      }
    }
  }
}

Environment variables

STEEL_API_KEY
GitHub stars
31
Category
Browser Automation, Developer Tools
License
MIT
Updated
Oct 6, 2026

About Steel MCP Server

Status: 3.0.0. Download it from Releases. It is not published to npm. mcp.steel.dev is not live yet.

Tools (16)

  • steel_scrape

    Read a budgeted page plus bounded links and metadata.

  • steel_screenshot

    Capture a URL for a person, or a live session for a visual check; URL captures support proxies

  • steel_pdf

    Render a page to PDF and return a link; supports proxies

  • steel_session_create

    Start a browser session you can interact with

  • steel_session_release

    Shut it down and stop the meter

  • steel_navigate

    Point a session at a URL

  • steel_snapshot

    Read the page as an accessibility tree with @eN references

  • steel_find

    Locate elements by text, safe regex, or role without reading the whole page

  • steel_act

    Click, type, fill a form, select, hover, scroll, press a key, go back, dismiss overlays

  • steel_wait_for

    Wait for named text, a selector, or a URL

  • steel_session_diagnostics

    Read a session's activity, or rediscover this credential's live handles, without starting a browser

  • steel_session_handoff

    Pause while a person takes exclusive control of the same browser, then return it to the agent

  • steel_session_replay

    On an explicit request, return a finished session's Steel dashboard link

  • steel_batch

    Run known reversible steps in one call; hands off before login, payment, or final confirmation

  • steel_session_options

    Plan a non-default session and discover saved profile IDs or managed-login namespaces

  • steel_session_live_view

    Feeds the inline viewer its connection details.

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
Claude Desktop logo

Claude Desktop

Desktop · Freemium · Proprietary

Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.

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Cursor

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The first agentic IDE. The Cursor editor truly merges how developers and AI work together, delivering a magical coding experience.

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VS Code GitHub Copilot

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VS Code integrates MCP with GitHub Copilot through agent mode, allowing direct interaction with MCP-provided tools in your agentic coding workflow. Configure servers in Claude Desktop, workspace, or user settings, with guided MCP installation and secure handling of secrets in input variables to avoid leaking hardcoded keys.

WindowsMacOSLinuxWeb

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