#5 Browser MCPOpen Source CoreOpen Source

Steel.dev MCP Server

Open-source Model Context Protocol server connecting AI assistants to Steel's stealth browser infrastructure.

★ 9.1

Agent MCP Score

Free open-source server

Official Documentation ↗

Claude Desktop Configuration

Add this snippet to your claude_desktop_config.json to enable full browser capabilities:

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

Direct CLI Install:npx -y @steel-dev/mcp-server

Exposed Tools & Primitives (5)

These functions are invoked autonomously by Claude, Cursor, or your AI agent loop:

⚡steel_create_session

⚡steel_navigate

⚡steel_interact

⚡steel_screenshot

⚡steel_get_content

AI Compatibility & Anti-Bot Specifications

Claude Desktop Integration	✔ Yes — Fully Tested with Claude 3.5 Sonnet / Haiku
Cursor IDE / Windsurf	✔ Yes — Standard Stdio / SSE Transport
Custom Agent Frameworks	✔ Supported (LangChain, LlamaIndex, CrewAI)
Automated CAPTCHA Solving	External solver plugins supported
Stealth & Evasion Engine	Built-in steel-stealth anti-detect engine
Pricing & Licensing	Free open-source server; cloud plans or self-hosted
Source Code Repository	https://github.com/steel-dev/steel-mcp-server ↗

Strengths for AI Agents

✔ Can connect to both Steel Cloud and self-hosted local Steel instances
✔ Detailed cookbooks and code examples for popular frameworks

Considerations

✖ Requires proxy configuration for difficult bot protection systems

Evaluation & Benchmark Verdict

Steel.dev MCP connects AI agents to Steel's open-source stealth browser engine.

Our Verdict

Steel MCP offers unmatched flexibility, allowing agents to use managed cloud or self-hosted instances seamlessly.

Ideal Use Case

Developers seeking an open-source browser stack that can transition from local development to production cloud.

Avoid If

Turnkey out-of-the-box CAPTCHA bypass without extra plugins.

Underlying Cloud Infrastructure

Powered by Steel.dev

Open-source and managed cloud browser engine designed from the ground up for LLM agents, scraping, and automation.

Read Cloud Browser Review →

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