DarkNotes is a single-file, offline-capable notes app that runs entirely in the browser. Notes live on a freeform canvas — you can position, resize, connect, and group them freely. When the DarkNotes MCP server is running, your notes become accessible to Claude and other AI tools.
Connect your DarkNotes to Claude and any MCP-compatible AI client. - **REST API** (port 3737) — the DarkNotes browser app saves notes here instead of just localStorage - **MCP Server** (stdio) — Claude Desktop / Claude Code can read and write your notes directly All data is stored in `~/.darknotes/data.json`.