My Problem 🤔
When I develop for iOS, macOS, or any Apple platform, I know the drill:
- I’m coding peacefully
- I need to check how something works in SwiftUI
- I open Safari / my favorite browser
- I search on Google / DuckDuckGo
- I land on Apple’s official documentation
- I read, understand, go back to my IDE
- I repeat this process 47 times a day
Or even worse: I ask my favorite AI and it gives me outdated or straight-up hallucinated information because its knowledge isn’t up to date with the latest versions of Swift or SwiftUI.
What if I told you there’s a better way?
My Solution 🧩
Cupertino MCP is a tool that locally indexes all of Apple’s documentation and makes it available to my AI through the Model Context Protocol (MCP).
In plain English: it’s like giving my AI (Claude, in my case) a direct, verified gateway to all of Apple’s official documentation.
How much documentation are we talking about?
302,424+ pages of official documentation
307 frameworks indexed
9,699 Swift packages cataloged
606 sample code projects from Apple
Complete Human Interface Guidelines
Swift Evolution proposals (~400 proposals)
Apple Archive guides (legacy but valuable documentation)
All of this, available offline, no internet needed, and with zero risk of AI hallucinations.
My Result 🎯
Absolute precision
When Claude answers me about Apple APIs, it no longer guesses. It searches the real official documentation and gives me 100% verified information.
No more: “I think in SwiftUI 6 you use it like this…”
Now it’s: “According to the official SwiftUI 6 documentation…”
Development speed
Before:
Question → Wait for response → Doubt → Open Safari →
Search Google → Read docs → Go back to IDE → Implement
Now:
Question → Response with official documentation → Implement
Massive time savings on every query.
Powerful search
Cupertino uses SQLite FTS5 with BM25 ranking. In plain English: ultra-fast searches (under 100ms) with relevant results sorted by importance.
I can filter by:
- Specific framework
- Platform version (iOS 17, macOS 14, etc.)
- Documentation type (API, examples, guides)
- Sample code search
Contextualized learning
I don’t just get the correct API, I also get:
- Real code examples from Apple
- Documented best practices
- Official design patterns
- Alternatives and deprecations
It’s like having an Apple mentor inside Claude.
Final thoughts
Cupertino MCP is a perfect example of how AI tools become truly useful when they have access to verified, up-to-date information.
It’s not about giving AI more power to “guess better.” It’s about connecting it with reliable sources so it gives you precise answers.
If you develop for Apple ecosystems, Cupertino MCP is a 5-minute investment (installation) that will save you hours every week. And if you use Claude Code like I do, the experience gets even better.
Do I recommend it? Absolutely. It’s a must-have if you develop with Swift, SwiftUI, or any Apple framework.
Is it for everyone? Only if you develop for Apple platforms. If you work with other technologies, look for similar tools — there are surely equivalents for Android, web, and more.
Keep coding, keep running 🏃♂️