One knowledge base. Every AI tool.
Hjarni is an MCP knowledge base with an official server. Pick the AI tool you already use, then follow its connection guide. Your notes stay with you when you switch assistants.
Connect your assistant
Editors, agents, and the rest of your tools
Hjarni for Cursor
Give your AI editor the architecture context that is not in the repo.
Hjarni for Claude Code
One CLI command. OAuth in the browser. Hjarni in every session.
Hjarni for Windsurf
Windsurf MCP server. Cascade reads, writes, and searches your knowledge base.
Hjarni for Cline
Cline MCP server. Long-term memory in the VS Code panel.
Hjarni for GitHub Copilot
GitHub Copilot MCP server. Agent mode reads your knowledge base in VS Code.
Hjarni for Zed
Zed MCP server. Long-term memory in the assistant panel.
Hjarni for Continue.dev
Continue.dev MCP server. Long-term memory in VS Code and JetBrains.
Hjarni for Aider
MCP server for Aider, the open-source CLI pair programmer.
Hjarni for Goose
MCP extension for Goose, the open-source AI agent originally built at Block.
Hjarni for Open WebUI
Native MCP for Open WebUI's External Tools panel, with mcpo as a fallback.
Hjarni for Raycast
Raycast AI MCP server. Search and capture from the Mac launcher.
Hjarni for Alfred
Alfred workflow that captures into Hjarni via the REST API.
Hjarni for Obsidian
Sync Hjarni notes into an Obsidian vault as plain Markdown.
Hjarni for Gemini CLI
MCP server for Gemini CLI, Google's terminal agent. Runbooks one command away.
Hjarni for Perplexity
Custom MCP connector for Perplexity. Answers from your notes, not just the web.
Hjarni for Junie
MCP server for Junie, JetBrains' AI coding agent. Conventions it reads while it codes.
Hjarni for LibreChat
LibreChat MCP server. One memory across every model provider in your self-hosted hub.
Hjarni for Jan
MCP server for Jan, the private, local-first AI app. Memory for your offline model.
Hjarni for LM Studio
LM Studio MCP server. Long-term memory for the local models you run.
Hjarni for n8n
MCP Client Tool node for n8n. Agents that read and write your notes mid-workflow.
Free to start. No credit card required.
One knowledge base, many clients
Pick any tool. Switch later. Bring your notes.
Every page above points at the same Hjarni MCP server. The same notes, folders, and tags show up in Claude today and Cursor tomorrow. There is no per-tool data to migrate.
Using a remote MCP client that is not listed? The endpoint is https://hjarni.com/mcp with OAuth. Config shapes vary by client (some want url, some want serverUrl, some use a CLI). The MCP Config Validator can sanity-check a config before you save it.
From a founder
Hjarni ran the whole Labeur launch. Scope decisions, landing page copy, App Store submission, launch day checklist, all in one place and all in sync with Claude. I stopped re-explaining myself to the AI. From first sketch to live in the store.
Your notes on every device
Hjarni has its own native apps. Free on every plan for iPhone, iPad and Mac and Android. Same account, same notes as the web. An internet connection is required.
Start here
Write once. You both remember.
25 notes free, forever. No credit card required.
Works with Claude, ChatGPT, Cursor and any MCP client.