OzBrain
OzBrain is a shared knowledge base that lets Claude, ChatGPT, Cursor and other AI tools read and write to the same source of truth instead of starting from scratch each time.
🔗 Visit OzBrain
Description
If you switch between ChatGPT, Claude, and Cursor during your day, you've probably re-explained the same project context to each one — what your product does, how your codebase is structured, what decisions were already made. OzBrain is meant to end that. It's essentially a shared notebook that every AI tool you use can read from and write to, so context you build up in one conversation is available the next time you open a different tool, instead of evaporating the moment you close the tab.
Under the hood, OzBrain structures the knowledge it stores and applies conflict detection and staged writes, so two agents updating the same piece of information at once don't silently overwrite each other — changes go through a review step with audit logging instead. It connects to Claude, ChatGPT, Cursor, Gemini and other agents via dedicated connectors, encrypts stored data at rest, tracks version history per agent, and supports markdown export plus hard delete for data you want gone for good. The free plan covers up to 50 articles, which is enough to test the workflow before committing to a paid tier as your knowledge base grows.
💬 Our review
The short version: OzBrain targets a real annoyance — re-explaining context to every AI tool you touch — and its multi-agent connector approach is more useful the more tools you actually juggle day to day. If you only use one AI assistant, the value proposition mostly disappears; the whole pitch depends on genuinely working across Claude, ChatGPT and Cursor simultaneously.
Pricing is where it gets less clear-cut: $20/month for 300 articles (Pro) or $99/month for 600 articles (Max) is steep on a per-article basis compared to just keeping your own Notion page or Obsidian vault and manually copy-pasting context, which costs nothing but your time. The value case rests entirely on how much that copy-pasting time is actually worth to you, and how much conflict-detection and staged writes matter once multiple agents are editing the same knowledge base — for a solo user with light multi-tool usage, the free 50-article tier may be all that's ever needed.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Gratuit : 0$/mois, 50 articles. Pro : 20$/mois, 300 articles. Max : 99$/mois, 600 articles. Company : tarification sur devis pour un brain organisationnel.
Pros
Connecteurs pour plusieurs agents IA majeurs (Claude, ChatGPT, Cursor, Gemini)
Détection de conflits et écritures en plusieurs étapes pour éviter les écrasements
Chiffrement au repos et logs d'audit
Export markdown et suppression définitive possible
Cons
Prix élevé par article comparé à une base de connaissances manuelle gratuite (Notion, Obsidian)
Valeur limitée si vous n'utilisez qu'un seul agent IA
Dépend de l'adoption effective des connecteurs par les outils tiers