开源MCP工具：Cairn
AI Skill Hub 推荐使用：开源MCP工具：Cairn 是一款优质的MCP工具。AI 综合评分 7.5 分，在同类工具中表现稳健。如果你正在寻找可靠的MCP工具解决方案，这是一个值得深入了解的选择。
通过安装 开源MCP工具：Cairn，你的 AI 助手将获得额外的工具调用能力，可以用自然语言直接操控该工具的功能，无需学习复杂的命令行语法。MCP 工具的核心价值在于"一次配置，永久增强"——配置完成后，每次与 AI 对话时都可以无缝调用这些工具。
在技术实现上，MCP 工具通过标准的 JSON-RPC 协议与 AI 客户端通信，工具的功能以"工具列表"的形式暴露给 AI 模型，AI 可以按需调用。开源MCP工具：Cairn 提供了结构化的工具调用接口，使 AI 模型能够精确地理解和使用每个功能点，显著降低 AI 在工具使用上的错误率。
与传统的 API 集成相比，MCP 工具的优势在于无需编写代码——用户只需在配置文件中添加几行 JSON，即可让 AI 获得全新能力。AI Skill Hub 将 开源MCP工具：Cairn 评为 AI 评分 7.5 分，属于同类工具中的优质选择。
Cairn是一个开源的MCP工具，内置了MCP服务器，用于管理笔记和项目。它使用TypeScript编写，提供了一个强大的MCP服务，方便开发者管理笔记和项目。
开源MCP工具：Cairn 是一款遵循 MCP（Model Context Protocol）标准协议的 AI 工具扩展。通过 MCP 协议，它可以让 Claude、Cursor 等主流 AI 客户端直接访问和操作外部工具、数据源和服务，实现 AI 能力的无缝扩展。无论是文件操作、数据库查询还是 API 调用，都可以通过自然语言在 AI 对话中直接触发，极大提升生产效率。
Cairn是一个开源的MCP工具，内置了MCP服务器，用于管理笔记和项目。它使用TypeScript编写，提供了一个强大的MCP服务，方便开发者管理笔记和项目。
开源MCP工具：Cairn 是一款遵循 MCP（Model Context Protocol）标准协议的 AI 工具扩展。通过 MCP 协议，它可以让 Claude、Cursor 等主流 AI 客户端直接访问和操作外部工具、数据源和服务，实现 AI 能力的无缝扩展。无论是文件操作、数据库查询还是 API 调用，都可以通过自然语言在 AI 对话中直接触发，极大提升生产效率。
- 通过标准 MCP 协议与 Claude、Cursor 等主流 AI 客户端深度集成
- 提供结构化工具调用接口，显著降低 AI 集成复杂度
- 支持 Claude Desktop 和 Claude Code 无缝接入，开箱即用
- 可与其他 MCP 工具组合叠加，构建完整 AI 工作站
- 轻量无侵入设计，不影响现有系统架构
- 在 Claude Desktop 对话中直接调用本地工具，实现 AI 与系统的深度联动
- 通过自然语言驱动复杂的多步骤自动化任务，代替繁琐手动操作
- 将多个 MCP 工具组合使用，构建个人专属 AI 工作站
# 方式一：通过 Claude Code CLI 一键安装
claude skill install https://github.com/ddutchie/cairn
# 方式二：手动配置 claude_desktop_config.json
{
"mcpServers": {
"--mcp---cairn": {
"command": "npx",
"args": ["-y", "cairn"]
}
}
}
# 配置文件位置
# macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
# Windows: %APPDATA%/Claude/claude_desktop_config.json
- 确认已安装 Node.js（v18 或以上版本）
- 打开 Claude Desktop 或 Claude Code 的 MCP 配置文件
- 按「交给 Agent 安装 → Claude Desktop」标签中的 JSON 配置填入 mcpServers 字段
- 保存配置文件并重启 Claude 客户端
- 重启后，在对话中即可使用本工具
# 安装后在 Claude 对话中直接使用 # 示例： 用户: 请帮我用 开源MCP工具：Cairn 执行以下任务... Claude: [自动调用 开源MCP工具：Cairn MCP 工具处理请求] # 查看可用工具列表 # 在 Claude 中输入："列出所有可用的 MCP 工具"
// claude_desktop_config.json 配置示例
{
"mcpServers": {
"__mcp___cairn": {
"command": "npx",
"args": ["-y", "cairn"],
"env": {
// "API_KEY": "your-api-key-here"
}
}
}
}
// 保存后重启 Claude Desktop 生效
Cairn
<p align="center"> <img src="public/icon.png" alt="Cairn" width="180" /> </p>
A calm, local-first workspace for notes, project tracking, and visual idea mapping — with an AI assistant and MCP server built in.
<p align="center"> <a href="https://ddutchie.github.io/cairn-site/index.html"><img src="https://img.shields.io/badge/Website-Live-blue" alt="Website"></a> <a href="https://ddutchie.github.io/cairn-site/docs"><img src="https://img.shields.io/badge/Docs-Read-green" alt="Docs"></a> <a href="https://github.com/ddutchie/cairn/releases"><img src="https://img.shields.io/github/v/release/ddutchie/cairn?label=Releases" alt="Releases"></a> <a href="https://github.com/ddutchie/cairn/blob/main/LICENSE"><img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="License: MIT"></a> <a href="https://github.com/ddutchie/cairn/issues"><img src="https://img.shields.io/github/issues/ddutchie/cairn" alt="Open Issues"></a> <a href="https://github.com/ddutchie/cairn/discussions"><img src="https://img.shields.io/badge/Discussions-Ask%20or%20share-blueviolet" alt="GitHub Discussions"></a> <a href="https://deepwiki.com/ddutchie/cairn/"><img src="https://deepwiki.com/badge.svg" alt="Ask DeepWiki"></a> </p>
<p align="center"> <img src="public/hero.png" alt="Cairn screenshot" width="100%" /> </p>
Overview
Cairn is a desktop app (Electron + Next.js) that combines markdown notes with a kanban board. It is fully compatible with Obsidian vaults, allowing you to point a workspace directly to any existing Obsidian folder. Notes are saved as plain .md files directly in your vault; project and task data lives in a local SQLite database alongside them. No accounts, no cloud, no backend. An embedded AI assistant and a standalone MCP server let AI agents read and write your workspace directly.
Features
- Projects — Multiple projects inside a workspace, each with notes and a board
- Notes — Split-pane markdown editor (write on the left, preview on the right)
- AI text actions — Select any text in a note → floating toolbar → Rephrase, Summarize, Expand, Fix Grammar, Change Tone, or custom prompt
- Kanban board — Drag-and-drop cards across columns with priority indicators; Archive All Done button clears the Done column in one click; Archive view (Board / Archive toggle) shows all archived tasks in a searchable grid with restore and delete actions
- Drag notes into folders — Drag any note in the sidebar directly onto a folder row to move it; a "Move to root" drop zone appears while dragging
- Linked context — Notes and cards reference each other bidirectionally
- Global search — Instant full-text search across all notes and tasks (
⌘Kor⌘⇧F) - AI chat — Integrated assistant with live project context; reads and writes your data (
⌘/) - Interactive PRD generation — Describe what you want to build; the agent asks clarifying questions then writes and saves a full PRD to your notes
- Idea Flow — Freeform node canvas per project (
⌘4): ideas, note/task refs, groups, URLs, AI summaries — connected with labelled edges - Live dashboards — AI-generated interactive HTML dashboards with a live
window.cairn.query()data bridge; inline "Fix with AI" on runtime errors; editable via built-in CodeMirror overlay - MCP server — Exposes your workspace to external AI agents (OpenCode, Claude Desktop, etc.) via the Model Context Protocol
- Cairn Agent — Native coding agent (
⌘5) with board and notes integration: moves tasks, writes session notes, captures discovered work; supports subagents for deep sub-tasks; Plan Mode writes a PRD note before coding; automatic retry on transient API errors; LLM-based context compaction for long sessions; context usage ring; works with any OpenAI-compatible endpoint - Agent workspace — Three-pane view (
⌘5) for running external AI coding agents (Claude Code, OpenCode, Aider, or any CLI) connected to project tasks; file tree, multi-file CodeMirror 6 editor, xterm.js terminal, and git diff viewer - Knowledge Graph — Workspace-wide graph of every note, card, project, and tag; Force-directed and Radial tree layouts; auto-discovered relationships (
⌘6) - Insights — Analytics view: Ridgeline joy plot, Beeswarm, Bullet health bars, Sankey pipeline flow, Timeline, Matrix heatmap, Table (
⌘7) - Font scaling — Five-step UI font size preference (XS–XL, default M) in Settings → General
- Obsidian Vault Compatibility — Works side-by-side with Obsidian vaults; renders standard double-bracket embeds (
![[image.png]]), uploads files to custom attachment folders, resolves local media via sequential-fallback protocol, and merges YAML frontmatter non-destructively - Local-first — Notes as
.mdfiles, project data in SQLite; no network required - Dark mode — Calm, focused aesthetics
Prerequisites
- Node.js 20+
- macOS (arm64 build provided; Windows/Linux untested)
Getting started
Install and run in development
git clone https://github.com/ddutchie/cairn
cd cairn
npm install
npm run rebuild # build better-sqlite3 native binaries for Electron + system Node
npm run compile # compile Electron main process + bundle MCP server
npm run dev # start Cairn (Next.js + Electron)Build the packaged app
npm run build:mac # macOS DMG (arm64 + x64)
npm run build:win # Windows NSIS installer (x64 + arm64)
npm run build:linux # Linux AppImage (x64 + arm64)
npm run build:all # All three platformsOutput goes to dist-app/.
Note: Re-runnpm run rebuildafter any Electron version bump. It builds native binaries for three ABIs (Electron, Node 22/MCP, system Node/vitest) and bundles the MCP server into a self-contained binary viascripts/build-mcp-binary.js.
AI chat setup
Configure the AI endpoint in Settings → AI & Chat (no restart needed):
| Setting | Default | Notes |
|---|---|---|
| Base URL | https://api.openai.com | Any OpenAI-compatible endpoint |
| Model | gpt-4o-mini | Any model name the endpoint accepts |
| API Key | _(blank)_ | Not required for local endpoints |
Quick presets — one click to switch between OpenAI, Ollama (localhost:11434), and LM Studio (localhost:1234). Local servers don't need an API key.
Context usage ring
A small ring in the agent pane header shows how full the model's context window is after each step. Configure the limit for your model in Settings → AI & Chat → Context window (presets: 8k / 32k / 128k / 200k).
When usage reaches 80% the agent automatically summarises older context with a background LLM call — the status bar shows "Compacting context…" while this is in flight. Type /compact in the chat input to trigger compaction on demand at any time. If a transient API error occurs, the status bar shows a countdown ("Transient error — retrying (1/3) in 8s…") and the agent retries automatically.
Screenshots
<details> <summary>View screenshots</summary>
 |
 |
 |
 |
 |
|
</details>
Cairn是一个开源的MCP工具，内置MCP服务器，方便开发者管理笔记和项目。它使用TypeScript编写，提供了一个强大的MCP服务，方便开发者管理笔记和项目。虽然它的star数较少，但它的代码质量和功能完善，值得关注。
- 通过标准 MCP 协议与 Claude、Cursor 等主流 AI 客户端深度集成
- 提供结构化工具调用接口，显著降低 AI 集成复杂度
- 支持 Claude Desktop 和 Claude Code 无缝接入，开箱即用
- 可与其他 MCP 工具组合叠加，构建完整 AI 工作站
- 轻量无侵入设计，不影响现有系统架构
- 在 Claude Desktop 对话中直接调用本地工具，实现 AI 与系统的深度联动
- 通过自然语言驱动复杂的多步骤自动化任务，代替繁琐手动操作
- 将多个 MCP 工具组合使用，构建个人专属 AI 工作站
- +MIT 协议，可免费商用
- +标准化 MCP 协议，生态互联性强
- +与 Claude 官方生态无缝对接
- +即插即用，配置简单快捷
- −依赖 Claude 客户端，非 Claude 用户无法使用
- −MCP 协议仍在持续演进，接口可能变更
- −需要一定的配置步骤
AI Skill Hub 为第三方内容聚合平台，本页面信息基于公开数据整理，不对工具功能和质量作任何法律背书。
建议在沙箱或测试环境中充分验证后，再部署至生产环境，并做好必要的安全评估。
✅ MIT 协议 — 最宽松的开源协议之一，可自由商用、修改、分发，仅需保留版权声明。
总体来看，开源MCP工具：Cairn 是一款质量良好的MCP工具，在同类工具中具备一定竞争力。AI Skill Hub 将持续追踪其更新动态，建议收藏备用，结合自身场景选择合适时机引入使用。
| 原始名称 | cairn |
| 原始描述 | 开源MCP工具：Cairn is an AI notes and project management tool with a built in MCP server。⭐11 · TypeScript |
| Topics | mcptypescript |
| GitHub | https://github.com/ddutchie/cairn |
| License | MIT |
| 语言 | TypeScript |
收录时间：2026-05-23 · 更新时间：2026-05-23 · License：MIT · AI Skill Hub 不对第三方内容的准确性作法律背书。