Steel MCP Server

Name: Steel MCP Server
Author: Steel

SteelOfficial

Cloud Chrome for MCP clients: read pages that block plain fetches, fill forms, take screenshots and hand off to a human for logins.

Setup

Choose your client, copy the config, then fill in any required environment variables.

Add to Cursor Add to VS Code

claude mcp add steel --env GLOBAL_WAIT_SECONDS='<GLOBAL_WAIT_SECONDS>' --env STEEL_API_KEY='<STEEL_API_KEY>' --env STEEL_BASE_URL='<STEEL_BASE_URL>' --env STEEL_LOCAL='<STEEL_LOCAL>' -- npx -y @smithery/cli install @steel-dev/steel-mcp-server --client claude

~/.codex/config.toml

[mcp_servers.steel]
command = "npx"
args = ["-y", "@smithery/cli", "install", "@steel-dev/steel-mcp-server", "--client", "claude"]
env = { GLOBAL_WAIT_SECONDS = "<GLOBAL_WAIT_SECONDS>", STEEL_API_KEY = "<STEEL_API_KEY>", STEEL_BASE_URL = "<STEEL_BASE_URL>", STEEL_LOCAL = "<STEEL_LOCAL>" }

# codex mcp add steel --env GLOBAL_WAIT_SECONDS='<GLOBAL_WAIT_SECONDS>' --env STEEL_API_KEY='<STEEL_API_KEY>' --env STEEL_BASE_URL='<STEEL_BASE_URL>' --env STEEL_LOCAL='<STEEL_LOCAL>' -- npx -y @smithery/cli install @steel-dev/steel-mcp-server --client claude

~/.cursor/mcp.json

{
  "mcpServers": {
    "steel": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@steel-dev/steel-mcp-server",
        "--client",
        "claude"
      ],
      "env": {
        "GLOBAL_WAIT_SECONDS": "<GLOBAL_WAIT_SECONDS>",
        "STEEL_API_KEY": "<STEEL_API_KEY>",
        "STEEL_BASE_URL": "<STEEL_BASE_URL>",
        "STEEL_LOCAL": "<STEEL_LOCAL>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "steel": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@steel-dev/steel-mcp-server",
        "--client",
        "claude"
      ],
      "env": {
        "GLOBAL_WAIT_SECONDS": "<GLOBAL_WAIT_SECONDS>",
        "STEEL_API_KEY": "<STEEL_API_KEY>",
        "STEEL_BASE_URL": "<STEEL_BASE_URL>",
        "STEEL_LOCAL": "<STEEL_LOCAL>"
      }
    }
  }
}

~/.gemini/settings.json

{
  "mcpServers": {
    "steel": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@steel-dev/steel-mcp-server",
        "--client",
        "claude"
      ],
      "env": {
        "GLOBAL_WAIT_SECONDS": "<GLOBAL_WAIT_SECONDS>",
        "STEEL_API_KEY": "<STEEL_API_KEY>",
        "STEEL_BASE_URL": "<STEEL_BASE_URL>",
        "STEEL_LOCAL": "<STEEL_LOCAL>"
      }
    }
  }
}

claude_desktop_config.json

{
  "mcpServers": {
    "steel": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@steel-dev/steel-mcp-server",
        "--client",
        "claude"
      ],
      "env": {
        "GLOBAL_WAIT_SECONDS": "<GLOBAL_WAIT_SECONDS>",
        "STEEL_API_KEY": "<STEEL_API_KEY>",
        "STEEL_BASE_URL": "<STEEL_BASE_URL>",
        "STEEL_LOCAL": "<STEEL_LOCAL>"
      }
    }
  }
}

.trae/mcp.json

{
  "mcpServers": {
    "steel": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@steel-dev/steel-mcp-server",
        "--client",
        "claude"
      ],
      "env": {
        "GLOBAL_WAIT_SECONDS": "<GLOBAL_WAIT_SECONDS>",
        "STEEL_API_KEY": "<STEEL_API_KEY>",
        "STEEL_BASE_URL": "<STEEL_BASE_URL>",
        "STEEL_LOCAL": "<STEEL_LOCAL>"
      }
    }
  }
}

Environment variables

GLOBAL_WAIT_SECONDS
STEEL_API_KEY
STEEL_BASE_URL
STEEL_LOCAL

Replace the placeholders with your own credentials and keep them out of version control.

Setup

Environment variables

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