Is Nucleus Apple Mcp safe to use?

Nucleus Apple Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install Nucleus Apple Mcp?

Nucleus Apple Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Nucleus Apple Mcp do?

Nucleus Apple Mcp provides 8 tools: calendar_list_events, calendar_create_event, reminders_list_reminders, notes_list_notes, notes_read_content and 3 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Nucleus Apple Mcp?

Nucleus Apple Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is Nucleus Apple Mcp actively maintained?

Nucleus Apple Mcp is actively maintained — last commit was 23 days ago. It has 18 GitHub stars.

Nucleus Apple Mcp

Name: Nucleus Apple Mcp
Author: zish-rob-crur

nucleus-apple-mcp · by zish-rob-crur

A macOS Model Context Protocol (MCP) server that acts as the central nervous system for your AI agent. Bridges Calendar, Reminders, Notes, and Health data using a hybrid Python + Swift architecture.

18 8 tools GitHub PyPI

No known CVEs

No license

Actively maintained

Last commit 23d ago

Works with most clients

Transport: stdio

8 tools · ~493 tok

Grade A · 0.2% of 200K ctx

Edit this pageView history

Productivity Health

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "nucleus-apple-mcp": {
      "args": [
        "nucleus-apple-mcp"
      ],
      "command": "uvx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/nucleus-apple-mcp)](https://mcppedia.org/s/nucleus-apple-mcp)

Read me

What Nucleus Apple Mcp does

nucleus-apple-mcp is a Model Context Protocol (MCP) server designed to unify your digital life on macOS. It allows AI agents (like Claude Desktop, Cursor, or custom agents) to securely read and interact with your personal data ecosystem.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

uvx 'nucleus-apple-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

86/100across 5 weighted dimensions

How we score →

0255075100

−14

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked nucleus-apple-mcp against OSV.dev.

Inventory

Tools (8)

Click any tool to inspect its schema.

~493 tokens total

Inventory

Resources (1)

health_data

Read raw Apple Health samples from an S3-compatible object store

health://samples

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Nucleus Apple Mcp safe to use?: Nucleus Apple Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Nucleus Apple Mcp?: Nucleus Apple Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Nucleus Apple Mcp do?: Nucleus Apple Mcp provides 8 tools: calendar_list_events, calendar_create_event, reminders_list_reminders, notes_list_notes, notes_read_content and 3 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Nucleus Apple Mcp?: Nucleus Apple Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is Nucleus Apple Mcp actively maintained?: Nucleus Apple Mcp is actively maintained — last commit was 23 days ago. It has 18 GitHub stars.

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MCP Security Weekly

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Productivity Health

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "nucleus-apple-mcp": {
      "args": [
        "nucleus-apple-mcp"
      ],
      "command": "uvx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/nucleus-apple-mcp)](https://mcppedia.org/s/nucleus-apple-mcp)

Read me

What Nucleus Apple Mcp does

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

uvx 'nucleus-apple-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

中文版

⚛️ Nucleus: macOS Life Context Server

Give your AI Agent a Hippocampus.

nucleus-apple-mcp is a Model Context Protocol (MCP) server designed to unify your digital life on macOS. It allows AI agents (like Claude Desktop, Cursor, or custom agents) to securely read and interact with your personal data ecosystem.

Unlike fragile PyObjC bridges, Nucleus uses a hybrid architecture: a Python MCP server that orchestrates lightweight, JIT-compiled native Swift workers. This ensures type-safe, performant, and reliable access to Apple's native APIs while remaining easily distributable via uvx.

For a product overview and setup path, see docs/introducing-nucleus.md. Download the iOS app from the App Store: Nucleus Context Hub.

Terminal + MCP demo: Nucleus summarizes a 30-day recovery trend from exported Health data.

🔌 Integrations

✅ Available (current release)

📅 Calendar: Fetch upcoming schedules, check availability, and create events via EventKit.
✅ Reminders: Read pending tasks and manage your to-do lists via EventKit.
📝 Notes: List/search notes, read content, and add/export attachments via Notes.app (Apple Events).
❤️ Health: Read exported Apple Health metrics and raw samples from an S3-compatible object store.

🏗 Architecture

Python: Handles the MCP protocol, request routing, and distribution (pip/uv).
Swift: Embedded source code acts as a "Sidecar." It is compiled locally on the first run (using SwiftPM swift build) to interface directly with macOS private frameworks, bypassing the limitations of Python-Objective-C bridges.

📦 Swift Sidecar Layout

Swift Package Root: src/nucleus_apple_mcp/sidecar/swift/ (includes Package.swift; CLI uses swift-argument-parser)
Build Cache (macOS): ~/Library/Caches/nucleus-apple-mcp/sidecar/<build_id>/nucleus-apple-sidecar
Optional Env Vars: NUCLEUS_APPLE_MCP_CACHE_DIR (overrides cache directory), NUCLEUS_SWIFT (swift path), NUCLEUS_SWIFTC (swiftc path)

🚀 Usage

# Run the CLI directly.
uvx --from nucleus-apple-mcp nucleus-apple health list-sample-catalog

# Or run the MCP server.
uvx nucleus-apple-mcp

🧰 CLI

Install the package once and use the unified nucleus-apple command:

uv tool install nucleus-apple-mcp

Examples:

# Calendar
nucleus-apple calendar list-events --start 2026-03-15T09:00:00+08:00 --end 2026-03-15T18:00:00+08:00 --pretty

# Reminders
nucleus-apple reminders list-reminders --due-end 2026-03-20 --pretty

# Notes
nucleus-apple notes list-notes --query project --include-plaintext-excerpt --pretty

# Health
nucleus-apple health read-daily-metrics --date 2026-03-14 --pretty

The CLI mirrors the MCP tool surface and emits JSON, which makes it suitable for shell automation and agent skill workflows.

🔧 Add as an MCP server

This server uses the stdio transport (a local subprocess). The first run will compile the Swift sidecar.

Codex CLI

# Add the server (writes to ~/.codex/config.toml)
codex mcp add nucleus-apple -- uvx nucleus-apple-mcp

# Verify
codex mcp list

Claude Code

# Add the server (use --scope user to make it available globally)
claude mcp add --scope user nucleus-apple -- uvx nucleus-apple-mcp

# Verify
claude mcp list

You can also launch the server through the CLI:

nucleus-apple mcp serve

🪝 OpenClaw + Hermes Agent Skills

This repository includes reusable agent skills under skills/ for:

nucleus-apple-calendar
nucleus-apple-reminders
nucleus-apple-notes
nucleus-apple-health

Each s

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

86/100across 5 weighted dimensions

How we score →

0255075100

−14

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked nucleus-apple-mcp against OSV.dev.

Inventory

Tools (8)

Click any tool to inspect its schema.

~493 tokens total

Inventory

Resources (1)

health_data

Read raw Apple Health samples from an S3-compatible object store

health://samples

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Nucleus Apple Mcp safe to use?: Nucleus Apple Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install Nucleus Apple Mcp?: Nucleus Apple Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Nucleus Apple Mcp do?: Nucleus Apple Mcp provides 8 tools: calendar_list_events, calendar_create_event, reminders_list_reminders, notes_list_notes, notes_read_content and 3 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Nucleus Apple Mcp?: Nucleus Apple Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is Nucleus Apple Mcp actively maintained?: Nucleus Apple Mcp is actively maintained — last commit was 23 days ago. It has 18 GitHub stars.