# Give ChatGPT Long-Term Memory ChatGPT's own memory keeps short facts, inside ChatGPT. Hjarni gives it your real notes instead, in a store Claude and every other AI can read too. Connect once and ChatGPT picks up where you left off. ## Why connect ChatGPT to your notes? ### Stop repeating yourself Every conversation starts from scratch on your notes. With Hjarni, ChatGPT reads them and already knows the context. ### Your notes, your rules Set instructions per folder. ChatGPT follows your conventions — tone, format, workflows — not its defaults. ### Works across AI tools Your notes aren't locked into ChatGPT. Use them with Claude, the API, or just as a notes app. ## Before you start ### What ChatGPT gets After you connect Hjarni, ChatGPT can use MCP to read and update the notes, containers, tags, instructions, and files your Hjarni account can access. ### What ChatGPT does not get It does not gain access before you authorize it, and it does not become your long-term memory unless you save things into Hjarni. If you're evaluating trust, permissions, or ownership concerns before connecting, read [privacy, permissions, and AI boundaries](https://hjarni.com/docs/privacy-and-permissions) first. ## What ChatGPT can do with Hjarni Once connected, ChatGPT can: 1. Search notes Full-text search across all your notes, containers, and tags. 2. Create notes Create new notes with Markdown content, tags, and wiki-links. 3. Organize notes into containers Place notes in the right folder, or create new folders. 4. Add tags Tag notes for filtering and grouping. 5. Link notes Create wiki-links between related notes. 6. Follow container instructions Respect your custom AI instructions for specific folders and topics. ## Requirements - **ChatGPT plan**: Plus, Pro, Business, Enterprise, or Education - **Hjarni account**: Free or paid. MCP works on all plans - **Where**: chatgpt.com, or the ChatGPT app on iPhone and Android - **Setup time**: Under 2 minutes ## How to connect ChatGPT to Hjarni ### Install from the ChatGPT Apps Directory Hjarni is a published app in the ChatGPT Apps Directory. 1. Open [Hjarni in the ChatGPT Apps Directory](https://chatgpt.com/plugins/plugin_asdk_app_69c3058914bc81919b807c176a7c106c). 2. Click **Connect**. 3. Sign in to Hjarni when redirected. That's it. ChatGPT can now search, read, and write your notes. **Alternative: Manual setup via developer mode** #### 1. Enable developer mode 1. Go to **Settings > Apps** in ChatGPT. 2. Scroll to **Advanced settings**. 3. Toggle **Developer mode** on. #### 2. Create the Hjarni app 1. In developer mode settings, tap **Create app**. 2. Set the name to `hjarni`. 3. Set the MCP Server URL to `https://hjarni.com/mcp` 4. Set authentication to **OAuth**. 5. Check **I understand and want to continue**. 6. Tap **Create**. 7. Log in to Hjarni when redirected. 8. Done. In a conversation, tap **+**, choose **Developer mode**, and select Hjarni. ![ChatGPT New App form with name 'hjarni', MCP Server URL 'https://hjarni.com/mcp', and OAuth authentication selected.](https://hjarni.com/chatgpt-new-app.png) ChatGPT handles authentication automatically through OAuth. No tokens to manage. ## Connect from your phone You don't need a computer. Open [Hjarni in the ChatGPT Apps Directory](https://chatgpt.com/plugins/plugin_asdk_app_69c3058914bc81919b807c176a7c106c) on your phone, tap **Connect**, and sign in or create your account. More than half of the people who start using Hjarni through ChatGPT do it on a phone. Once connected, the same notes are there on the web and in the ChatGPT app. Save a note from your phone on the train and ask about it from your laptop later. Hjarni also has [its own app for iPhone and Android](https://hjarni.com/get), free on every plan. Use it to read what ChatGPT saved, fix a note, or add one by hand. ## Verify the connection After setup, ask ChatGPT one of these: - `List my recent Hjarni notes` - `Search Hjarni for notes about weekly planning` - `Create a note in Hjarni called Test connection` If ChatGPT cannot see Hjarni tools, re-check that the MCP URL is exactly `https://hjarni.com/mcp` and that the OAuth flow completed successfully. ## What workflows work best ### Weekly planning Ask ChatGPT to review your recent notes and draft a weekly summary or plan based on what you've captured. ### Research capture Paste an article or idea into the chat and have ChatGPT save it as a structured note with tags and links. ### Project memory Use a container for each project. ChatGPT reads existing notes for context before helping you think through problems. ### Writing assistant with source notes Ask ChatGPT to search your notes for relevant material, then draft a document using your own sources. ## What ChatGPT can and cannot do ### Can do - Search, read, create, and update notes - Delete notes (recoverable from Trash for 30 days) - Organize notes in containers - Add and manage tags - Create wiki-links between notes - Follow your custom AI instructions - Attach files to notes ### Cannot do - Remember across conversations (use notes for that) - Access notes without you connecting Hjarni first - Bypass your permissions or instructions - File notes silently. ChatGPT is instructed to confirm the destination folder when it's ambiguous, and deleted notes go to Trash, recoverable for 30 days Common questions ## FAQ **Does Hjarni give ChatGPT long-term memory?** Not automatically. But when you save important information as notes, ChatGPT can search and retrieve it in future conversations. The notes act as your memory. ChatGPT is the interface. **Does Hjarni include its own AI model?** No. Hjarni is a knowledge base, not an AI model. It gives your existing AI assistant (ChatGPT, Claude) access to your notes through MCP. **Do I need a paid ChatGPT plan?** Yes. ChatGPT's MCP support requires Plus, Pro, Business, Enterprise, or Education. Hjarni itself works on any plan, including free. **Can ChatGPT edit existing notes?** Yes. ChatGPT can update the content, tags, container, and status of any existing note.