Jade Note vs Capacities: Object-Based PKM vs AI Memory Layer

Key takeaways

  • Capacities organizes knowledge as typed objects with a built-in, in-app AI assistant.
  • Jade Note is an AI-native memory layer that your existing ChatGPT and Claude read and write directly via MCP.
  • The tradeoff is a polished in-app object database versus letting the AI you already use remember and maintain your notes.

Capacities is one of the most thoughtfully designed knowledge tools around. Instead of files in folders, everything is an object — a person, a book, a project, an idea — with its own type and properties, linked into a living network. Daily notes act as an inbox, backlinks and “Related Content” surface connections, and a built-in AI assistant lets you chat with your own knowledge base. It’s a beautiful, self-contained second brain.

Jade Note shares that “second brain” goal, but takes a different route. In one line: Capacities is a polished object database with AI inside it; Jade Note is a memory layer the AI you already use reads and writes from the outside.

Two Philosophies

Capacities: object-based, AI inside the app

  • Everything is a typed object — you define object types and properties and build a structured graph
  • Daily notes, backlinks, and Related Content keep capture and discovery smooth
  • A built-in AI assistant summarizes, brainstorms, and answers questions about your notes
  • A public API (Pro) lets external tools connect, but the AI experience lives inside Capacities
  • The flip side: designing object types and querying lives in one app you have to open

Jade Note: AI-native, zero setup

  • Claude Desktop and ChatGPT read and write notes directly via MCP (Model Context Protocol)
  • The AI suggests link candidates and builds a knowledge graph with typed links (related / parent / child / continues / references)
  • Memory maintenance is automated — category wikis, freshness checks, consistency reviews run without you
  • Versioning, change previews, and rollback make autonomous AI writes safe
  • No schema design — split notes into categories and write Markdown

Comparison

AspectCapacitiesJade Note
Data modelTyped objects + properties (you design)Markdown + categories (AI maintains structure)
AI integrationBuilt-in AI assistant inside the appMCP is the core — your own ChatGPT & Claude (OAuth 2.0)
Where the AI livesInside CapacitiesThe AI tools you already use, every day
AI writes your notesYou chat; you saveThe AI saves, appends, and maintains on its own
External accessPublic API (Pro)MCP-native, built for external agents
SetupObject type / property designSign up and write
Best forPeople who love a polished object-based PKMPeople who want their AI to just remember

”AI Inside the App” vs “Your AI Reads the Notes”

This is the real fork in the road. Capacities has an excellent in-app AI assistant: open the app, chat with your knowledge base, and get summaries and answers. It’s genuinely useful — but the AI experience is inside Capacities. You go to the notes to use the AI.

Jade Note inverts that. There is no AI assistant to learn, because the assistant is the ChatGPT and Claude you already use all day:

  • ChatGPT and Claude semantically search your notes mid-conversation, wherever that conversation happens
  • The AI saves and appends facts and decisions to your notes on its own
  • Link suggestions, category wiki updates, and contradiction checks — the AI takes over maintenance

Capacities has a public API, so a developer could wire external automation to it. But that’s “build your own integration,” not “your everyday AI already has your memory.” Jade Note is MCP-native: the day you connect it, Claude and ChatGPT can read, write, and garden your notes without you opening a separate app.

The privacy stances match the designs. Both store data on encrypted servers. Capacities keeps your notes for you and your in-app AI. Jade Note says “only the AI you trust can read it, under OAuth 2.0 and scoped access” — because being read by your AI is the entire point.

Which Should You Choose?

If you love crafting a structured, object-based knowledge base and want a refined, self-contained app with AI built in, Capacities is a wonderful choice — the design and the object model are a joy to work in.

If you’d rather not open yet another app, and you want the ChatGPT and Claude you already use to actually remember who you are, give Jade Note a try. Just write — the AI cultivates your memory.

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Sources: Capacities