How to Give Claude Long-Term Memory

Every time you open your AI, you start over. You explain your project, your stack, the decision you made last Tuesday. Again.

You can stop doing this. In five minutes.

How it works

Hjarni is a note app your AI can read. You write notes. Your AI searches and reads them. One URL to connect.

Step 1: Create your first note

Sign up at hjarni.com. Create a note about something you're tired of re-explaining.

Title: Tech Stack

Rails 8 + SQLite.
Deployed on Hetzner via Kamal.
MCP server built into the app.
Tailwind + Turbo, no React.
Solid Queue for background jobs.

Step 2: Connect to Claude

Go to Settings. Find Connectors. Add a custom connector.

Name it "Hjarni" and paste https://hjarni.com/mcp as the URL. Done.

Step 3: Ask Claude something

Start a new conversation. Don't paste any context. Just ask something only your notes would know.

"Write me a pitch based on what you know about my product."

Claude searches your notes. Finds the answer. No copy-pasting.

What to save next

If you've typed it twice, save it. Project context. Decisions and their reasons. Research conclusions.

Every note you add makes the next conversation better. Ten notes in, you just talk to your AI like it's been on your team all along.

The free tier gives you 25 notes with full MCP access. No credit card.