01What is Hermes AI Obsidian memory?

Hermes AI Obsidian memory is a system where you use the free Obsidian app as a shared memory vault for your AI agents like Hermes. It stores every chat and idea in a simple folder that your agents can write to and read from. This way, your AI never forgets your business details or past conversations.

In this episode, Julian Goldie explains how he uses Obsidian as a memory galaxy. Every time an agent does something useful, it logs it into the vault. Then, you can ask your agent to pull memories from that vault when needed.

This creates a positive feedback loop where your AI gets smarter over time.

You don't need multiple memory tools. A single shared vault keeps your agents focused and reduces token usage. It's simple, free, and works across all your devices.

02Main features of the Obsidian memory vault

The Obsidian memory vault has several key features that make it powerful for AI memory. Here are the main ones Julian highlights:

  • Free and cross-platform – Obsidian is a free app that syncs across all your devices.
  • Auto-logging – Every chat with Hermes or Claude can be automatically saved into the vault.
  • Read/write capability – Agents can both write memories into the vault and pull them out when you ask.
  • Positive feedback loop – The more your agents use the vault, the better they remember your business.
  • Reduced token usage – One shared memory system is more efficient than using three separate ones.
  • Easy sync – You can sync the vault across machines using Obsidian Sync, iCloud, Drive, Tailscale, or an MCP.

These features make it easy to give your AI a long-term memory without adding complexity.

03How to set up the memory vault in Obsidian

Setting up the memory vault in Obsidian is straightforward. Julian shows it live and explains the steps. Here is how you do it:

  1. Download and install Obsidian on your main machine.
  2. Create a new vault – this is just a folder where your memories will be stored.
  3. Connect your AI agent, like Hermes, to that vault. You can use an MCP for Obsidian to make it easy.
  4. Set up the agent to write memories automatically after each useful interaction.
  5. Ask your agent to pull memories from the vault when you need them. For example, say "What do you remember about my business?"
  6. Sync the vault to other machines using Obsidian Sync, a cloud folder, or Tailscale if needed.

That’s it. You now have a shared memory system that your agents can use across devices.

04Using the memory vault: examples from the episode

Julian shows how the memory vault works in practice. He has a memory galaxy that stores over a thousand memories. Every time he interacts with his agents, they write to the vault.

Then, he can ask questions like "What do you remember about my business?" and get useful answers.

He also demonstrates how to sync the vault on two workstations. The key is to use one login for Obsidian. You go to settings, select sync, choose a remote vault, and it links everything together.

This prevents conflicting copies.

For voice booking, Julian shows how to connect Hermes to a phone system. You can use Telegram, WhatsApp, or a voice agent like 11 Labs. Then, link Google Workspace to the calendar.

When a client calls, the AI can talk, understand, and book a slot directly into your calendar.

05Results and comparisons: memory tools vs Obsidian

Julian compares using Obsidian to using other memory tools like g-brain or hindsight. He says you don’t need them if you use Hermes or a single agent. More memory tools don’t mean better memory.

In fact, three partial memories are worse than one shared brain.

He notes that multiple memory systems can confuse Hermes and increase token usage. That makes it slower and more expensive. With Obsidian, you get a single, organized vault that saves admin time because it updates itself.

He also shows how to fix access issues with Agent OS. If you can’t open it, check if it’s running. Ask the agent for the correct localhost address.

This solves common setup problems quickly.

06Tips, limits, and mistakes to avoid

Here are some practical tips and warnings from the episode:

  • Use one memory system – Avoid plugging multiple memory tools into Hermes; it causes confusion.
  • Sync with one login – To avoid conflicts, use Obsidian Sync with a single login for all machines.
  • Warm up new accounts – If you start on Pinterest or any platform, build up gradually to avoid being flagged.
  • Faceless avatars are easier – If you don’t show your face, you have more audio options like Phish, which sounds more human.
  • Secure your voice agent – When connecting a voice agent, limit what it can access for security.
  • Check the localhost – If Agent OS doesn’t open, verify it’s running on the right address.

Following these tips will help you avoid common mistakes and get more out of your setup.

07Who this is for and why it matters

This system is for anyone using AI agents like Hermes or Claude in their business. If you want your AI to remember details about your clients, projects, and ideas, the Obsidian memory vault is a must. It gives your AI a persistent memory that survives resets.

It also matters because it saves time. You don’t have to organize files manually. The agents do it for you.

This lets you focus on more important work.

Voice booking is perfect for business owners who want clients to book appointments by phone. It makes your business accessible to people who prefer calling over using apps.

Overall, this episode shows how to make your AI more powerful with simple tools and clear setup steps.