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PopNx MCPMCP servers for people who use AI · explained in plain words

CP Memory

by CJhuochaiversion 1.8.1i★ –iRuns on your computer
Registry nameio.github.CJhuochai/cp-memory

Install

Overview

Description from the maker (original English)

Local-first, governable long-term memory for AI coding agents

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • The registry lists no key to fill in.

You need

  • PyPIPython’s uv installed (for the uvx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "cp-memory": {
      "command": "uvx",
      "args": [
        "cp-memory-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add cp-memory -- uvx cp-memory-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "cp-memory": {
      "command": "uvx",
      "args": [
        "cp-memory-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "cp-memory": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "cp-memory-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account CJhuochai, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7277 servers in this category
  • Published to the registry more recently than 37% of the other 7277 servers in this category
  • Basic checks equal to or better than 100% of the other 7277 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is CP Memory safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.8.1) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated yesterday
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 21 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

CP Memory

Local-first, governable memory for AI coding agents.

Remember project rules across sessions, recall only what matters, and correct bad memory without hiding history.

简体中文 | English


Why CP Memory

For reproducible package, protocol and recall checks, see verification evidence and limits.

  • Local first: memory stays in ~/.cp-memory/memory.db by default.
  • Governable: inspect, review, correct, scope, or retire memory instead of silently overwriting it.
  • MCP-ready, Codex-enhanced: the stdio MCP server is the portable baseline; the Codex plugin adds Skills and lifecycle Hooks.

Quick Start — Portable MCP

With Python 3.10+ and uv installed, any stdio MCP client can start CP Memory with:

uvx cp-memory-mcp

The public package passed a clean-cache MCP handshake with all 40 tools and a write/search/correct flow. See MCP client setup for Codex, Claude Code, Cursor, VS Code, and Gemini CLI examples.

For the enhanced Codex integration with lifecycle Hooks and Skills, install the plugin:

codex plugin marketplace add CJhuochai/cp-memory

codex plugin add cp-memory@cp-memory

Restart Codex after installation and approve the lifecycle Hooks if prompted.

See The Result In 30 Seconds

  1. Tell Codex a project rule, such as: “Releases must start on a branch, run tests, and merge through a PR.”
  2. In a later session, CP Memory restores the relevant rule from the local primary store so Codex can continue following it.
  3. If the rule is wrong, preserve correction history and mark the old record wrong, stale, or scoped instead of silently overwriting it.

CP Memory is a local-first memory plugin for Codex. It stores facts, preferences, ongoing work, episodes, decisions, and conversation checkpoints in a local SQLite database, then restores relevant context through MCP tools and lifecycle hooks.

The goal is not to remember as much as possible. The goal is memory that remains trustworthy after long-term use: explainable, reviewable, correctable, and governable.

Current Capabilities

  • Context restore: restores relevant local-primary memory on startup and eligible prompts.
  • Automatic extraction: conservatively creates long-term personal memory candidates from explicit statements.
  • Project scope: prioritizes current-project memories with repo:, project:, and workspace: scopes.
  • Reviewable governance: supports review inbox, review digests, conflict suggestions, correction states, and startup reminders.
  • Safe maintenance: weekly maintenance runs health checks, governance preflight, and low-risk expiry cleanup only.

30-Second Example

You tell Codex:

Remember this: releases for this project must start on a branch, run tests, and merge through a PR.

In a later session, you ask:

What are the release rules for this plugin?

CP Memory restores the relevant memory from the local primary store first, and Codex follows that rule. If the memory is wrong, you can mark it wrong, mark it stale, or write a corrected version.

See more anonymized examples in docs/examples.md.

For a GIF, short video, or launch post, use the sanitized 30-second demo script.

Install

For any stdio MCP client, use the verified public package:

uvx cp-memory-mcp

Client-specific commands and JSON files are in docs/mcp-clients.md.

For Windows, the recommended path is GitHub Marketplace installation:

codex plugin marketplace add CJhuochai/cp-memory

codex plugin add cp-memory@cp-memory

Restart Codex after installation. If Codex asks you to trust hooks, approve the CP Memory lifecycle hooks in the hooks view.

For macOS/Linux, use the source installer. It creates a private Python runtime for the plugin and installs the MCP dependency:

git clone https://github.com/CJhuochai/cp-memory.git

cd cp-memory sh ./install.sh

Restart Codex when it finishes. Do not treat GitHub Marketplace installation on macOS/Linux as an equivalently verified path: Marketplace does not run install.sh, so it does not create that private runtime.

Platform Support

PlatformRecommended installationVerified coverage
WindowsGitHub Marketplace; install.ps1 for local developmentUnit tests, isolated installation validation, and GitHub Actions CI passed
macOSSource installer: sh ./install.shGitHub Actions macOS CI passed unit tests and isolated install/MCP startup validation
LinuxSource installer: sh ./install.shGitHub Actions Ubuntu CI passed unit tests and isolated install/MCP startup validation

Manual smoke testing of real Codex desktop Hook injection on macOS/Linux is still pending access to physical devices. This release is accepted through three-platform CI; the boundary does not affect the installer and MCP-startup checks already covered, but it is not a substitute for full desktop manual acceptance.

Safety

  • Do not commit your real memory.db, logs, private summaries, or environment files.
  • Automatic extraction is intentionally conservative. Generated memories can be reviewed, corrected, marked stale, or marked wrong.
  • When memories need review, the current version injects a reminder into assistant context. It is not a user-facing popup or visible review panel, and it does not auto-delete memory or auto-resolve conflicts.
  • Weekly maintenance runs health checks, governance preflight, and low-risk expiry cleanup only; long-term personal memories, tasks, and decisions are protected by default.
  • Examples and screenshots use sanitized content, so you do not need to expose your real memory database.

Comparison

If you have seen other memory projects, start with docs/comparison.md. CP Memory's main difference is Codex lifecycle integration plus memory governance, not just storage and search.

Roadmap

See docs/roadmap.md for future directions. The roadmap prioritizes local-first behavior, explainability, correctability, and privacy safety.

See CHANGELOG.md for version history.

Local Development

Windows users normally do not need to run install.ps1. It is mainly for local development, refreshing the personal marketplace cache, and migrating old global hook wiring from earlier versions.

For local macOS/Linux development, run:

sh ./install.sh

sh ./scripts/test-install.sh

Python 3 with python3 on PATH is required. The installer creates a private virtual environment in the plugin directory and installs runtime dependencies; this is the currently verified installation path for macOS/Linux.

Run the test suite:

python -m unittest discover -s tests -p test_cp_memory.py

Validate the installer in an isolated temporary profile without touching your real Codex configuration:

powershell -ExecutionPolicy Bypass -File .\scripts\test-install.ps1

License

MIT

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