How to Install Claude Mem Safely and Verify It Works

Q: Where does Claude Mem store its data?

Its documentation says the default data directory is the .claude-mem folder in the current user's home directory.

Short Answer

Claude Mem is installed from its community maintained GitHub project, not from Anthropic. The project's current installation guide recommends reviewing the requirements and then running npx claude-mem install. After installation, run npx claude-mem doctor and test the plugin in a non-sensitive project.

Do not treat that command as an automatic endorsement. Claude Mem can observe coding sessions, save context locally, and inject remembered information into later sessions. Read the repository, confirm the package name, understand which model provider it will use, and make a backup before installing it. Claude Mem is a third party project and is not maintained by Anthropic.

What the Question Really Means

People searching for how to install Claude Mem usually want Claude Code to remember useful project context across sessions. Claude Code already works with the files and instructions available in the current project. Claude Mem adds a separate memory layer that captures observations from a session, summarizes them, stores them, and makes selected context available later.

That means installation is not just adding a harmless visual extension. The plugin uses hooks and a local worker. It can process information from prompts, tool activity, and project work. The practical question is therefore: can you install it, verify every component, and decide whether its data handling fits the project?

There is also a naming trap. Claude Mem is not the same as Claude's built in features, Anthropic's official Claude Code package, or a generic memory setting in a chat application. Start from the project's official repository, and check that the owner and package name match before running anything.

How It Works

Claude Mem uses Claude Code plugin hooks to collect useful context as a development session progresses. Its local worker processes those observations and writes memory data to a local directory. In later sessions, the plugin can retrieve compact context instead of forcing the user to repeat the entire history.

The project's installation documentation currently lists Node.js 20 or newer as a requirement. It also explains that supporting tools such as Bun and uv can be installed by the setup process when needed. Requirements can change, so use the version shown in the current documentation rather than an old video or copied command.

By default, the project documents ~/.claude-mem/ as its data location. That directory may contain the database, logs, settings, and worker related files. Local storage is useful because it gives you a place to inspect and back up, but local does not automatically mean private. If the configured model provider sends content to an external service for processing, the provider's terms and data controls still matter. Review the project's configuration guide before using confidential material.

Anthropic's own Claude Code getting started guide remains the source for installing and signing in to Claude Code itself. Get Claude Code working first. Adding a memory plugin to a broken base installation makes troubleshooting much harder.

Practical Steps

1. Confirm Claude Code works first

Open Claude Code in a small test project and confirm that you can start a session normally. Check your installed version against the requirements in the current Claude Mem guide. If Claude Code cannot start, fix that installation before adding the plugin.

Also confirm that Node.js is available:

node --version
npm --version

The documented minimum is Node.js 20 at the time of writing. A version number below the current requirement should be upgraded using the supported method for your operating system.

2. Review the source and data path

Read the installation and configuration pages. Look at the package scripts, plugin hooks, network providers, and default storage directory. For an employer owned machine, check software approval and data handling rules first. A tool can be open source and still be unsuitable for a regulated or confidential repository.

Back up any existing ~/.claude-mem/ directory if you are reinstalling or upgrading. Do not delete it merely to get a clean install because it may contain memory data you want to keep.

3. Run the documented installer

From a regular terminal account, use the current command shown by the project:

npx claude-mem install

Read the package prompt and installer output. Do not add administrator privileges unless the official documentation for your system explicitly requires them. Do not run a similarly named package from a search advertisement, copied social post, or unofficial download page.

The installer should check prerequisites, install or update the plugin components, and configure the local service. Let it finish before opening a new Claude Code session.

4. Run the health check

Use the project's diagnostic command:

npx claude-mem doctor

The result should identify missing dependencies, plugin registration problems, worker failures, or other setup issues. Save the non-sensitive parts of the output if you need support, but remove file paths, prompts, repository names, tokens, and personal information before sharing logs.

5. Test on harmless content

Create a temporary project with a short readme and a few sample files. Ask Claude Code to inspect it, end the session, then start a new session and see whether Claude Mem surfaces the expected context. This tests capture and retrieval without exposing production code.

Check the local memory interface and stored observations if the project provides them. Confirm that irrelevant or sensitive text can be removed and that you know how to disable the plugin before using it for real work.

6. Choose settings deliberately

The configuration reference describes provider and behavior settings. Use the least access needed. Keep secrets in an approved secret manager, not in prompts, memory notes, shell history, or configuration committed to Git.

If you change a provider, check where data is processed and whether your account has the required privacy controls. Restart the documented worker components after a setting change if the guide instructs you to do so, then run the doctor command again.

Common Problems

If npx is not found, Node.js and npm are either missing or unavailable in the current shell. Install a supported Node.js release, reopen the terminal, and confirm both version commands before retrying.

If the plugin installs but does not record sessions, confirm that it is enabled in the same Claude Code environment you are launching. Multiple operating system accounts, containers, or Windows Subsystem for Linux environments can each have separate home directories and plugin configurations.

If the worker does not start, run npx claude-mem doctor and use the project's troubleshooting guide. Check documented logs for a port conflict, missing runtime, database error, or provider authentication failure. Do not paste complete logs into a public issue without reviewing them for private data.

If memories look empty or incomplete, first test a fresh session with clear, harmless facts. Retrieval is selective, so the tool may compress or omit information rather than replaying every line. A memory system is not a complete audit log or a replacement for project documentation.

If Claude Code itself stops working after the plugin installation, disable the plugin using the current documented method and retest the base product. This separates a Claude Code problem from a Claude Mem hook or worker problem.

What Does Not Work

Installing a random package with a similar name does not install the verified project. Confirm the repository and exact package every time.

Repeatedly rerunning the installer usually does not fix a broken dependency or port conflict. The doctor output and logs are more useful than stacking multiple installations on top of one another.

Expecting perfect recall also does not work. Claude Mem compresses and retrieves context. It can miss details, surface stale observations, or remember an earlier decision that the team later changed. Keep authoritative requirements in versioned project documentation.

Finally, do not solve permission errors with broad administrator access or by turning off security tools. Find the specific file, port, or policy causing the problem and use the documented remedy.

Safety and Limitations

Claude Mem can encounter source code, filenames, prompts, command output, and other project context. Never use it with confidential data until you understand its hooks, local database, provider settings, retention behavior, and deletion process. Follow your employer's policy and applicable client agreements.

Do not place API keys or passwords in a memory prompt. Rotate any secret that appears in a log or saved observation. Restrict access to the local data directory, and include its contents in a backup only if that backup has suitable encryption and retention controls.

The plugin is community maintained. Updates may change its dependencies, storage schema, or behavior. Review release notes and source changes before upgrading. A successful doctor result proves that expected components respond; it does not prove that every stored fact is accurate or that the tool is approved for a particular security environment.

Key Takeaways

Claude Mem is a third party plugin, not an Anthropic product.
Use the current command from the project's own GitHub documentation and verify the package before running it.
Start with a working Claude Code setup and Node.js 20 or newer, subject to the latest documented requirements.
Run npx claude-mem doctor after installation and after important configuration changes.
Test with non-sensitive files, inspect storage and provider settings, and keep official project documentation as the source of truth.

FAQ

What is Claude Mem?

Claude Mem is a third party, open source plugin that captures coding sessions and makes compressed context available in later sessions.

How do I install Claude Mem?

After reviewing its source and requirements, run the current installation command from the project's official GitHub documentation. The guide currently recommends npx claude-mem install, followed by npx claude-mem doctor.

Is Claude Mem made by Anthropic?

No. It is a community project and is not maintained or supported by Anthropic. Claude Code itself is Anthropic's product.

Where does Claude Mem store its data?

Its documentation says the default data directory is the .claude-mem folder in the current user's home directory. Check the current configuration guide before relying on that path.

Why is Claude Mem not recording sessions?

The plugin may not be enabled, its hooks may not be running, or the local worker may have failed. Run the doctor command and inspect the documented logs without exposing secrets.

Can I use Claude Mem with private code?

Only after reviewing its code, configuration, storage, model providers, and your organization's policy. Test with non-sensitive material first and never assume a memory plugin is approved for confidential data.