Claude Mem

By Anthropic
DeveloperApplicationFree

Give Claude Code a memory that persists across sessions

Last updated Apr 19, 2026

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What is Claude Mem?

Claude Code is powerful, but it starts every session with a blank slate. You explain your project structure, coding conventions, and past decisions over and over. Claude Mem fixes this by giving Claude Code a persistent memory layer. The plugin works as a lightweight MCP server that Claude Code connects to automatically. When you tell Claude something important — a naming convention, an architectural decision, a bug fix rationale — you can save it to memory with a simple command. On the next session, Claude Code loads those memories as context before it starts working. Memories are stored as structured files in your project directory. Each memory has a category (architecture, convention, decision, bugfix, todo) and a relevance scope (project-wide or directory-specific). This structure means Claude Code loads only relevant memories, keeping the context window clean. The plugin ships with automatic memory extraction too. When Claude Code finishes a task, Claude Mem can prompt it to save key learnings. This creates a growing knowledge base that gets smarter over time. After a week of use, Claude Code knows your project's patterns, your team's style, and your past debugging sessions. Installation takes about two minutes. Clone the repo, add it to your Claude Code MCP settings, and restart. No database to set up, no API keys to configure. Everything lives in your project's .claude-mem directory, which you can commit to git for team sharing. Claude Mem is free and open source. It works with any Claude Code setup — free tier, Pro, or Max. The memory format is plain Markdown, so you can read and edit memories directly if you want more control.

Claude Mem's Top Features

Key capabilities that make Claude Mem stand out.

Persistent memory storage across Claude Code sessions with no re-explanation needed

Structured memory categories: architecture, convention, decision, bugfix, todo

Scoped relevance — project-wide or directory-specific memory loading

Automatic memory extraction prompts after task completion

Plain Markdown memory format that is human-readable and editable

MCP server integration — connects to Claude Code in two minutes

Git-friendly storage in .claude-mem directory for team sharing

Zero configuration — no database, no API keys, no external dependencies

Works with all Claude Code tiers: free, Pro, and Max

Growing knowledge base that accumulates project intelligence over time

Use Cases

Who benefits most from this tool.

Developers using Claude Code daily

Maintain architectural decisions and rationales across coding sessions

Development teams

Share project conventions and coding standards with AI assistants

Solo developers

Build a project-specific knowledge base that grows over time

New team members

Onboard by accessing accumulated AI session knowledge

Tags

claude-code-pluginpersistent-memorycontext-managementmcp-serverdeveloper-toolscoding-assistantmemory-persistenceai-contextsession-continuityknowledge-base
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Building reliable, interpretable, and steerable AI systems

10 Tools4 ModelsFounded 2021San Francisco, CA
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AI Models by Anthropic

Large language models from the same organization.

ModelContext WindowPrice (In / Out per M)
Claude Opus 4.7Current1.0M$5.00 / $25.00
Claude Opus 4.6 (Fast)Current1.0M$30.00 / $150.00
Claude Sonnet 4.6Current1.0M$3.00 / $15.00
Claude Opus 4.6Current1.0M$5.00 / $25.00

Claude Mem's pricing

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