One knowledge base. Every AI tool.
Hjarni is an MCP knowledge base with a built-in server. Pick the AI tool you already use. The config snippet on each page is two minutes of setup.
Hjarni for Claude
Long-term memory for Claude.ai, Claude Desktop, and Claude iOS.
Hjarni for ChatGPT
Connect Hjarni in the ChatGPT Apps Directory or developer mode.
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.
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.
Give your AI a memory
Write once. You both remember.
Free to start. No credit card required.
Works with Claude and ChatGPT today. Gemini coming soon.