Koskamo

portcheck MCP

The portcheck MCP server enables AI coding assistants to inspect network ports, identify processes holding them, find available ports, and safely stop conflicting processes. It integrates with tools like check_port, list_ports, find_free_port, wait_for_port, and stop_process to resolve EADDRINUSE errors automatically within agent sessions.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

portcheck MCP logo, by Royston DCommunity listingLocal stdioSource reviewed; not executedPublished by Royston D
Vendor documentation

What you can do with it

  • Check if a specific port is in use and identify the holding process
  • List all listening ports with filters for range, process name, or protocol
  • Find free ports within a specified range
  • Stop a process listening on a port or a specific PID safely

Source and maintenance

Community listingRegistry 0.11.0
mcp-registry: io.github.roystondwork-dev/portcheck@0.11.0Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

portcheck-cli 0.11.0

npmnpx
portcheck-cli package definition
{
  "version": "0.11.0",
  "transport": "stdio",
  "identifier": "portcheck-cli",
  "runtimeHint": "npx",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before 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.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "portcheck-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "portcheck-cli@0.11.0",
        "mcp"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "portcheck-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "portcheck-cli@0.11.0",
        "mcp"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "portcheck-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "portcheck-cli@0.11.0",
        "mcp"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "portcheck-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "portcheck-cli@0.11.0",
        "mcp"
      ]
    }
  }
}

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