When using AI to write code or work on projects, one of the most annoying issues is its “forgetfulness.” The solutions discussed in the previous conversation are often forgotten as soon as a new window is opened. MemPalace is designed to address this problem.
What is MemPalace?
In a nutshell: An open-source system that gives AI permanent memory.
It prioritizes local storage, keeping all data on your own device without relying on cloud services. It achieved a 96.6% R@5 recall rate in the LongMemEval benchmark tests, and this was achieved without any API calls.
It has 53,000 stars on GitHub and is licensed under the MIT license.
Core Features
1. Local Priority
All memory data is stored locally, eliminating the need to upload it to any cloud service. This is an essential feature for those who value privacy.
2. Word-for-Word Storage
Instead of using vectorized, approximate storage, MemPalace stores the original content word for word. This means that everything you’ve said or written before is preserved in its exact form, without any loss of detail due to vectorization.
3. High Recall Rate
With a 96.6% R@5 recall rate in the LongMemEval benchmark tests, MemPalace can accurately retrieve information from previous conversations.
4. Pluggable Backend
It supports multiple storage backends, allowing you to choose the one that best suits your needs.
5. Integration with Claude Code
It has been specifically designed to integrate with AI programming tools like Claude Code. Since Claude Code sessions expire after 30 days by default, MemPalace helps you retain important information.
Installation and Usage
Install MemPalace using the following command:
pip install mempalaceAfter installation, follow the documentation to configure the storage path and backend, and you can start using it.
Use Cases
AI Programming Assistance
When using tools like Claude Code or Cursor to write code, MemPalace can remember previous discussions, decisions, and code snippets. You can simply ask, “How was that function written before?” and it will provide an accurate answer.
Long-Term Project Management
If you work on a project for several months, it’s easy for discussions and decisions to be lost. MemPalace helps you keep all the context available for reference.
Knowledge Accumulation
You can store daily learning notes, ideas, and code snippets, gradually building a personal knowledge base.
Summary
MemPalace addresses one of the biggest drawbacks of AI tools: their tendency to forget. With its local storage, high recall rate, and integration with popular AI tools, it’s worth trying for anyone who frequently uses AI for coding.
GitHub: github.com/MemPalace/mempalace