Hypermnesia MCP

Cross-platform persistent memory for Codex, Gemini CLI, Claude Code, and other local MCP hosts - built on computational neuroscience, not just retrieval. 36 cited brain mechanisms consolidate what matters, keep it current as your project evolves, and reconstruct the right context at the right time. The MCP server is host-agnostic; Claude Code adds optional automatic lifecycle hooks.

People connecting memory tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 71 · #24 OF 259 MAINTAINED MEMORY · VERIFIED 2026-08-25

MIT · Python servers · how we verify → /methodology

01 · Install Hypermnesia MCP

before you install - you'll need

Set CORTEX_USE_ASSEMBLER, CORTEX_MEMORY_STORE_BACKEND before connecting.

Claude Code

claude mcp add cdeust-cortex -- uvx hypermnesia-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "cdeust-cortex": {
      "command": "uvx",
      "args": [
        "hypermnesia-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 MIT - declared in the repository

pypi package hypermnesia-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

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

03 · What Hypermnesia MCP can do

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

Latest releases

v4.17.2 · 2026-08-02

v4.17.2 - pip constraints extras fix reaches installs · strip extras from the pip constraints file (#339) · retry the HuggingFace prewarm fetch instead of failing the build (#338) · align server.json with the published…

v4.17.1 · 2026-08-02

mirror ci.yml's network hardening in the release gate, ship it as v4.17.1 (#335) · mirror ci.yml's network hardening in the release gate, ship it as v4.17.1

v4.16.0 · 2026-07-24

Merge pull request #168 from cdeust/release/4.16.0 · v4.16.0 pre-tag reproduce.sh results - all floors PASS · drop reproduce.sh runtime lock from tracking, ignore the lock dir · bump version to 4.16.0 · Merge pull…

04 · Who maintains Hypermnesia MCP

hypermnesia-mcp is maintained by cdeust. We track 6 MCP servers from cdeust - 5 actively maintained, 87 combined GitHub stars, oldest repo from Mar 2026. Full record: all servers from cdeust.

05 · Facts

repository: github.com/cdeust/cortex
website: https://ai-architect.tools/
category: memory - ranked #24 of 259 actively-maintained memory servers as of 2026-08-25.
release cadence: 10+ releases in the last 90 days (latest 2026-08-02)
registry: io.github.cdeust/hypermnesia-mcp (active, first published 2026-07-22 · 3 versions)
packages: pypi:hypermnesia-mcp

06 · Hypermnesia MCP FAQ

What is Hypermnesia MCP?

Is Hypermnesia MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Hypermnesia MCP?

Run `uvx hypermnesia-mcp`. The README documents 2 environment variables (CORTEX_USE_ASSEMBLER, CORTEX_MEMORY_STORE_BACKEND) to set first. Set CORTEX_USE_ASSEMBLER, CORTEX_MEMORY_STORE_BACKEND before connecting. You can also paste the ready-made client config above.

Does Hypermnesia MCP run locally?

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

07 · Alternatives to Hypermnesia MCP

Alternatives to Hypermnesia MCP

Maintained memory servers if Hypermnesia MCP isn't the fit.

Pairs well with

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

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