OzBrain – shared brain for AI agents and teams

TL;DR

TL;DR: OzBrain is a hosted knowledge layer that multiple AI agents — Claude, ChatGPT, Cursor, Gemini — all read from and write to, so you stop re-explaining context in every new chat.

Source and Accuracy Notes

⚠️ This section is MANDATORY. All links must be verified from actual source, not guessed.

• Project page: ozbrain.com ← verified via direct fetch
• HN launch thread: news.ycombinator.com/item?id=49394827 ← 92 points, Aug 2026
• License: proprietary (no open-source license stated on the site)
• Source last checked: 2026-08-29

What Is OzBrain?

Every AI assistant you use — Claude, ChatGPT, Cursor, Gemini — builds its own isolated memory of you. None of them talk to each other. OzBrain is the shared layer underneath all of them.

From the site:

“OzBrain is a shared brain every AI agent you use can read and write. One structured source of truth across Claude, ChatGPT, Cursor, and coding agents.”

It works as a hosted knowledge base where articles are written by your agents, not just by you. Every article tracks provenance and freshness. Agents propose changes before they land, so several can work at once without overwriting each other. The full change history — which agent made it, what changed, and the reasoning — stays on the record.

Pricing tiers (verified from JSON-LD on ozbrain.com):

| Plan | Price | Notes | |------|-------|-------| | Free | $0 forever | Limited articles | | Pro | $20/month | Higher article cap | | Max | $99/month | Full capability | | Enterprise | Custom | Org-owned shared brains |

Supported Platforms

OzBrain connects to Claude and ChatGPT through their native connector flows, plus:

• Claude Code
• Cursor
• OpenClaw
• Hermes Agent
• Gemini Spark (US, eligibility required)
• Any platform that supports connectors

How to Connect

Claude

1. Open Claude’s connector menu
2. Add OzBrain
3. Sign in and approve access
4. Start reading and writing to the shared brain

ChatGPT

1. Open ChatGPT’s connector menu
2. Add OzBrain
3. Sign in and approve access
4. Done — no install required

The same process applies to Claude Code, Cursor, and other supported clients.

How Agents Use It

When connected, an agent can read what your other agents already know and write updates that every other connected agent can see on the next query. The site gives this example prompt users can run in their chat agent:

“Help me learn more about how I can use OzBrain. Follow the instructions below to show me from my existing work how this can be helpful. Look at what you know about how I actually work, including past conversations, saved memory, projects, teammates, clients, shared documents, and handoffs.”

Security and Privacy

The site explicitly states:

• Brains are encrypted at rest
• Access is sealed to your account — nothing leaks between tenants
• OzBrain never trains on your brain data
• OzBrain never sells your data
• Export everything as plain markdown anytime, including after cancellation
• Account deletion removes all content permanently

OzBrain vs Built-in AI Memory

The core problem OzBrain solves:

| | Each platform’s memory | OzBrain | |---|---|---| | One source of truth | ❌ Separate memory per product | ✅ Single shared brain | | Agent writes visible to other agents | ❌ Siloed | ✅ All agents see updates | | Cross-platform context | ❌ Platform-specific | ✅ Unified layer |

FAQ

Q: Is this just another memory API? A: No. Memory APIs sell add and search endpoints for developers building apps. OzBrain is a brain you connect directly in your existing AI agent’s connector menu — no code required.

Q: ChatGPT and Claude already have memory. Why would I use this? A: Each platform builds a separate, partial version of you, and none of them share. If you use both Claude and ChatGPT, you end up re-explaining context twice. OzBrain sits under all of them so every agent works from the same current knowledge.

Q: Which platforms does it work with? A: Claude and ChatGPT via their native connector flows, plus Claude Code, Cursor, OpenClaw, Hermes Agent, and Gemini Spark where available. Any client that supports connectors can share the same brain.

Q: Do I need to code? A: No. Connect from the agent’s menu, sign in, approve — nothing to install.

Q: What if I leave? A: Export all content as markdown anytime, including after canceling. Account deletion removes everything.

Conclusion

OzBrain targets a real pain point for power users: context fragmentation across every AI product you use. Instead of rebuilding context from scratch in each new conversation, your agents share a living knowledge base underneath them all.

The free tier is sufficient to test whether the workflow fits your setup. If you run multiple AI assistants daily, the time saved from not re-explaining context could justify the Pro or Max plans quickly.

Try it at ozbrain.com.