What it does
Provides knowledge graph–based persistent memory for Claude using the Model Context Protocol. Stores facts and relationships to the filesystem, enabling Claude to maintain and retrieve context across multiple conversations. Implemented as a reference server by the MCP steering group to demonstrate memory system architecture patterns, rather than for production deployment.
Who it's for
Developers learning how to build MCP servers, especially those interested in designing memory systems that persist beyond single conversations. Also suitable for researchers and engineers exploring knowledge graph representations and their integration with AI applications.
Common use cases
- Learning MCP server implementation patterns from a worked reference example
- Understanding how to architect persistent memory systems for Claude
- Prototyping custom memory system designs before building production versions
- Exploring knowledge graph representation and storage strategies
Setup pitfalls
- Marked as high-risk with failing CI—review code and test thoroughly before any use
- Reference implementation status means it is not production-ready; comprehensive security and stability evaluation needed
- Requires filesystem write access to persist the knowledge graph
- Makes network calls—verify endpoints and intended behavior before deployment
- As a reference design, may not include production-level error handling or observability features