Open MCP Server

Shared, persistent memory for AI assistants, built on the Zettelkasten method.

Local serverstdio

What is the Open MCP Server?

Shared, persistent memory for AI assistants, built on the Zettelkasten method.

What the server does

You open a new session and your agent has no idea who you are. Again. You re-explain your stack, your conventions, that one edge case you've corrected five times.

  • Correct it once, it sticks — — your agent stores corrections, preferences, and decisions. Next session, it already knows
  • Works across every tool — — one knowledge base shared by Claude Code, Cursor, Windsurf, OpenCode, Zed, Pi, and OMP
  • Finds what's relevant — — hybrid search matches meaning, not just keywords, so only useful context surfaces
  • Runs locally — — no API keys, no cloud, works offline. Your data stays on your machine
  • Human-readable — — plain Markdown files you can browse, edit, and version control
  • Open source — — MIT licensed

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Frequently asked questions

Shared, persistent memory for AI assistants, built on the Zettelkasten method. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.