Port Scanner MCP MCP server

An official MCP server provided by Portscan that allows AI agents to programmatically check open TCP ports on the requesting server's public IP. It supports fast (32 ports) and deep (65,535 ports) scans, including SMTP reachability checks, without requiring API keys or authentication. The server is designed for verifying firewall rules, monitoring scripts, and server-to-server deliverability checks.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Portscan

MCP endpoint (Streamable HTTP)

https://api.portscan.com/mcp

Vendor documentation

What you can do with it

Verify firewall rules in CI/CD pipelines
Check public IP port exposure for servers
Confirm expected services are reachable
Monitor SMTP deliverability via port 25

Tools advertised by the last live check:

fast_scan
deep_scan

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http port-scanner-mcp https://api.portscan.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add port-scanner-mcp --url https://api.portscan.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable port-scanner-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "port-scanner-mcp": {
      "url": "https://api.portscan.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "port-scanner-mcp": {
      "type": "streamableHttp",
      "url": "https://api.portscan.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start port-scanner-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "port-scanner-mcp": {
      "type": "http",
      "url": "https://api.portscan.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http port-scanner-mcp https://api.portscan.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "port-scanner-mcp": {
      "url": "https://api.portscan.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "port-scanner-mcp": {
      "serverUrl": "https://api.portscan.com/mcp"
    }
  }
}

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