portcheck

Name: portcheck
Author: roystondwork-dev

作者：roystondwork-dev版本 0.11.0i★ –i在你的电脑上运行

注册名称io.github.roystondwork-dev/portcheck

安装

概览

作者提供的说明（英文原文）

See which process holds a port, find free ports, and stop a dev server safely.

PopNx MCP 的三大支柱

这三项永远不会合并成一个分数：意见、测量和人气是不同的东西。

用户评价i暂无评价评价功能将在后续阶段与账户功能一起开放
我们的基础检查i1 项中通过 1 项依据公开信息检查；尚未扫描代码
使用情况i尚未统计★ –

它能帮你做什么

我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。

连接方式: 在你的电脑上运行
传输方式: stdio
分类: 其他

安装

选择你使用的 AI 应用，然后复制设置。

安装之前

基础检查：1 项中通过 1 项
在你的电脑上运行，拥有你的用户账户的权限（文件、网络、应用）。
注册中心没有列出需要填写的密钥。

你需要

npm已安装 Node.js（用于 npx 命令）

你用的是哪个应用？

ClaudeClaude CodeCursorVS CodeChatGPT

在上方选择你的应用。我们会记住它，下次按钮会显示“安装到 …”。

打开 Claude Desktop → Settings → Developer → Edit Config，把下面的内容粘贴到 claude_desktop_config.json

{
  "mcpServers": {
    "portcheck": {
      "command": "npx",
      "args": [
        "-y",
        "portcheck-cli",
        "mcp"
      ]
    }
  }
}

在终端中运行这条命令

claude mcp add portcheck -- npx -y portcheck-cli mcp

在 Cursor 中打开

或者自己复制设置

粘贴到项目中的 .cursor/mcp.json，或 ~/.cursor/mcp.json

{
  "mcpServers": {
    "portcheck": {
      "command": "npx",
      "args": [
        "-y",
        "portcheck-cli",
        "mcp"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

在 VS Code 中打开

或者自己复制设置

粘贴到项目中的 .vscode/mcp.json

{
  "servers": {
    "portcheck": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "portcheck-cli",
        "mcp"
      ]
    }
  }
}

浏览器会先询问是否打开应用，然后应用会显示设置并请你确认。密钥的值会留空，由你自己填写。

这个服务器在你的电脑上运行，而 ChatGPT 只能连接互联网上的服务器。请选择其他应用。

你的选择通过 Cookie 保存在这台设备上，无需账户。

这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同，请以 README 为准。

它能做什么

它在你的电脑上运行；安装后，工具列表会显示在你的 AI 应用中。

基础检查i

我们检查的是任何人都能看到的信息；我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月6日

✓ 通过
作者与仓库一致
注册名称已通过 GitHub 账户 roystondwork-dev 验证，该账户拥有此仓库
… 尚未检查
仍在维护
我们还没有从 GitHub 读取这个仓库
… 尚未检查
有许可证
我们还没有从 GitHub 读取这个仓库
– 不适用
端点有响应
它在你的电脑上运行，没有互联网端点
– 不适用
使用 OAuth 登录
在你的电脑上运行，改用本地设置
… 尚未检查
工具描述中没有隐藏指令
它在你的电脑上运行；我们只能读取互联网端点的工具列表

与“其他”中的其他服务器比较i

星标数多于此分类中其他 32489 个服务器的 0%
发布到注册中心的时间比此分类中其他 32489 个服务器的 74% 更新
基础检查结果等于或优于此分类中其他 32489 个服务器的 100%

与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时，星标数才计入。

常见问题

portcheck 安全吗？

它在 1 项适用的基础检查中通过了 1 项。我们没有阅读代码。在添加密钥或令牌之前，请先看看这个服务器要求哪些权限，并使用只具备所需权限的密钥。

它需要哪些密钥或代码？

注册中心没有列出必需的密钥，不过有些服务器会在首次使用时要求你登录。

它在我的电脑上运行还是在云端？

它在你的电脑上运行。你的 AI 应用会在需要时启动它，数据不会经过作者的服务器（除非它自己调用在线服务）。

它还在维护吗？

GitHub 仓库最后更新于–，最新版本（0.11.0）于12天前进入注册中心。

哪些应用可以使用它？

支持 MCP 的应用，例如 Claude Desktop、Claude Code、Cursor 和 VS Code。你的电脑上还需要有 Node.js。

有什么可以替代它？

同一分类中有：Spec Driven Development, Remote Desktop Commander, Whisper

替代选择

同一分类中其他作者的服务器，按星标数排序。

如何看卡片：★ GitHub 星标i三大支柱：评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i

Spec Driven Development

作者：formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

在你的电脑上运行★ 440MIT14个月前更新

安装

Remote Desktop Commander

作者：desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

在云端运行★ 211昨天更新

安装

Whisper

作者：whisper-sec

One routable IPv6 per AI agent, verifiable from the DNS root. Keyless tools need no signup.

电脑或云端今天更新

安装

作者的 README

打开 README

按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。

portcheck

See what's using your ports, find free ones, free them up, and check remote hosts.

One static binary for macOS, Linux and Windows.

Port already in use?

npx portcheck-cli kill 3000

portcheck shows what holds the port and who started it, asks, then stops it gently (and never touches system processes). It's a safer kill-port, with nothing to install first.

Fixes for the error you're seeing: Node.js, Next.js, Vite · Python, Django, Flask · Docker · Rails, Spring Boot, Go, .NET, PHP · macOS · Windows · Linux

Features

	Command
🔍	`portcheck list -l`	Every listening socket with its process, PID and user
✅	`portcheck 3000`	Is the port free? If not, who holds it? Exit code 0 or 1 for scripts
🆓	`portcheck free 3000-3999 -n 3`	Free ports, verified by actually binding them
🛑	`portcheck kill 8080`	Graceful SIGTERM, then SIGKILL; refuses PID 1, your shell and system processes
🧹	`portcheck servers --older-than 1d`	The dev servers you forgot: your listening processes with their project and uptime, oldest first; `--stop` to clean up
📡	`portcheck scan db.internal -p 5432`	Rate-limited TCP connect checks of remote hosts. No root needed
⏳	`portcheck wait db:5432 -t 60s`	Block until services accept connections, or until a port is free. Built for CI
▶️	`portcheck run --port 3000 --next -- npm run dev`	Start a command on a free port (`$PORT`, `{port}`); take the next one or stop the holder
🩺	`portcheck doctor`	Check the ports listed in `.portcheck.yaml` and get a fix for each problem
🖥️	`portcheck`	Live, sortable, filterable TUI. Stop processes without leaving it
🌐	Browser extension	Edge (and Chrome): which process serves a localhost tab, `off` when nothing listens, stop it from the popup (guide)
🧩	VS Code extension	"Port in use" errors in the terminal become one-click fixes; listening ports in the sidebar (guide)
🤖	`portcheck mcp`	AI assistants (Claude Code, Cursor, Copilot…) check and free ports themselves (guide)
⌨️	Raycast	Search Ports, Check Port, Kill Port and Find Free Port from the Mac launcher
✍️	Neovim	`:Portcheck` picker, check/kill/free, and "port in use" in `:terminal` → stop it
🔌	Menu bar / tray app	Your listening ports in the macOS menu bar or Windows/Linux tray: stop, open, copy in two clicks
🧠	JetBrains plugin	IntelliJ IDEA, WebStorm, PyCharm, GoLand…: "port in use" in Run/Debug → Stop it and rerun; a Ports tool window

VS Code extension

When a dev server fails because its port is taken, the extension says who holds it and fixes it: stop it and re-run, or re-run on the next free port.

Install Portcheck - Port in Use Fixer from the VS Code Marketplace (search "portcheck" in VS Code) or Open VSX (VSCodium, Cursor, Windsurf). portcheck is built in.

JetBrains plugin

In IntelliJ IDEA, WebStorm, PyCharm, GoLand and the other JetBrains IDEs, when a run configuration fails because its port is taken, a notification names the process and offers Stop it and rerun; the Ports tool window lists every listening port.

▶ Watch the 20-second demo

Install portcheck-jetbrains- .zip from the latest release (Settings → Plugins → ⚙ → Install Plugin from Disk…); it is in review on JetBrains Marketplace (guide).

Browser extension

On every localhost tab, a badge names the process serving it, or says off when nothing is listening; the popup shows who started it and stops it safely.

Install Portcheck - Localhost Port Inspector from Microsoft Edge Add-ons, then run portcheck browser install once. For Chrome, Brave and Chromium, load the zip from the latest release (guide).

Highlights

Same commands and output on every OS. It replaces lsof -i, netstat -ano, ss -ltnp and kill.
Built for scripts. --json follows a versioned schema, exit codes are stable, and results go to stdout while messages go to stderr.
Container- and WSL-aware. Ports published by Docker/Podman or forwarded from WSL show the container or distro, and kill tells you how to stop it there instead of killing the proxy.
Honest about permissions. Hidden owners are shown as hidden, with a hint on how to see them.
A Go library too. See pkg/.

Install

# Homebrew (macOS, Linux)

brew install roystondwork-dev/tap/portcheck

winget (Windows; the package is waiting for Microsoft's review)

winget install roystondwork-dev.portcheck

Scoop (Windows)

scoop bucket add portcheck https://github.com/roystondwork-dev/scoop-bucket scoop install portcheck

npm (any OS): run it without installing

npx portcheck-cli 3000

PyPI (any OS)

pipx install portcheck-tool

Go 1.26+

go install github.com/roystondwork-dev/portcheck/cmd/portcheck@latest

.deb, .rpm, .apk and archives for amd64/arm64 are on the releases page. The checksum file covering every artifact is signed with cosign (keyless), and releases ship SBOMs and SLSA provenance; see verifying downloads.

Quickstart

$ portcheck 3000

PORT PROTO STATUS PID PROCESS USER 3000 tcp in-use 42379 node alice

$ portcheck kill 3000 About to terminate: PID 42379 node (port 3000) Proceed? [y/N] y PID PROCESS RESULT DETAIL 42379 node terminated

$ portcheck free 3000-3999 -n 2 -o plain PORT 3000 3001

$ portcheck list -l --json | jq '.data.sockets[] | {port: .localPort, name: .process.name}'

📖 Documentation: https://roystondwork-dev.github.io/portcheck/ (quickstart · guides · CLI reference · permissions by OS · FAQ)

Use as a Go library

res, err := inspect.NewSystem().List(ctx, inspect.Filter{Ports: portspec.Single(3000), ListeningOnly: true})

if err != nil { log.Fatal(err) } for _, s := range res.Sockets { if s.Process != nil { // nil when the owner is hidden from your user fmt.Println(s.PID, s.Process.Name) } }

See the library guide for portspec, inspect, freeport, killer, scan, waitfor and containers.

Responsible use

portcheck scan makes ordinary TCP connections and has no stealth features. Only scan hosts and networks you own or are authorized to test.

Contributing

Contributions are welcome! See CONTRIBUTING.md for setup and standards (every change is tested on Linux, macOS and Windows, with a 100% coverage gate on the library), and TASKS.md for the roadmap and status. Please follow the Code of Conduct, and report vulnerabilities privately as described in SECURITY.md.

portcheck

概览

PopNx MCP 的三大支柱

它能帮你做什么

安装

安装之前

它能做什么

基础检查i

作者与仓库一致

仍在维护

有许可证

端点有响应

使用 OAuth 登录

工具描述中没有隐藏指令

与“其他”中的其他服务器比较i

常见问题

替代选择

Spec Driven Development

Remote Desktop Commander

Whisper

作者的 README

Port already in use?

Features

VS Code extension

JetBrains plugin

Browser extension

Highlights

Install

winget (Windows; the package is waiting for Microsoft's review)

Scoop (Windows)

npm (any OS): run it without installing

PyPI (any OS)

Go 1.26+

Quickstart

Use as a Go library

Responsible use

Contributing

License