Mnemosyne OS MCP Server

Open to build on · Private at the core English · Français · Español · Deutsch · Português · Русский · 中文. It runs locally over stdio via the published package.

People who work with electron, local first and mnemosyne and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-17 · ★ 14 · #55 OF 304 MAINTAINED MEMORY · VERIFIED 2026-09-18

NOASSERTION · TypeScript servers · how we verify → /methodology

01 · Install Mnemosyne OS

Claude Code

claude mcp add mnemosyne-os-mnemosyne-neural-os -- npx -y @mnemosyne_os/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "mnemosyne-os-mnemosyne-neural-os": {
      "command": "npx",
      "args": [
        "-y",
        "@mnemosyne_os/mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license no standard license detected - usage rights unclear; check the repo before commercial use

npm package @mnemosyne_os/mcp - the @mnemosyne_os scope differs from the repo owner (mnemosyne-os); confirm it's the project's official package

registry namespace io.github.Mnemosyne-OS is GitHub-verified and matches the repo owner

03 · What Mnemosyne OS can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.4.5-infinity · 2026-09-08

v1.4.5 · The Locked Door · If the app comes back on the old version after the restart, accept the update once more: the file is already downloaded and installs in seconds. Fixed in the next release. · only a cartridge…

v1.4.4-infinity · 2026-09-03

v1.4.4 · The Whole Document · A long document now enters memory whole. It used to be cut at 18 000 characters. · A model server you run yourself becomes a route, on your own network. · The chat reads several vaults at…

v1.4.3-infinity · 2026-08-31

Mnemosyne OS - Infinity v1.4.3 · What Your Agent Knows · if you run a coding agent beside your IDE, or use the MCP, install this one. · Point a vault at .claude or .cursor: those folders were watched and never read, in…

04 · Who maintains Mnemosyne OS

Mnemosyne OS is maintained by mnemosyne-os. It's the only MCP server we track from this author; the repo dates to Mar 2026.

05 · Facts

repository: github.com/mnemosyne-os/mnemosyne-neural-os
website: https://mnemosyne-os.io/
category: memory - ranked #55 of 304 actively-maintained memory servers as of 2026-09-18.
release cadence: 7 releases in the last 90 days (latest 2026-09-08)
registry: io.github.Mnemosyne-OS/mcp (active, first published 2026-08-29 · 5 versions)
packages: npm:@mnemosyne_os/mcp

06 · Mnemosyne OS FAQ

What is Mnemosyne OS?

Open to build on · Private at the core English · Français · Español · Deutsch · Português · Русский · 中文. It runs locally over stdio via the published package.

Is Mnemosyne OS still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-17 and it shipped 7 releases in the last 90 days. We re-verify nightly.

How do I install Mnemosyne OS?

Run `npx -y @mnemosyne_os/mcp`. You can also paste the ready-made client config above.

Does Mnemosyne OS run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Mnemosyne OS

Alternatives to Mnemosyne OS

Maintained memory servers if Mnemosyne OS isn't the fit.

Pairs well with

Servers that cover what Mnemosyne OS doesn't - only shown when the pairing reason fits the companion.

More memory MCP servers · Mnemoverse Memory · MemoCat - Shared AI Memory · Montycat MCP - Shared Memory for AI Agents · Brain - The Recorder

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