Basic Memory is an MCP-enabled local-first knowledge management solution that lets AI assistants read and write to your personal knowledge base stored as Markdown files on your computer. By implementing the Model Context Protocol (MCP), the server exposes structured access to a semantic graph of Entities, Observations, and Relations that can be traversed by compatible LLMs. Notes are created and updated in real time in Markdown, with a local SQLite database indexing and searching the knowledge graph, ensuring persistent memory across conversations. The system supports bidirectional synchronization between the file system and the knowledge graph, so humans edit files and LLMs enrich the graph, while keeping everything under your control and privacy-preserving. It uses memory:// URLs to reference entities across tools and conversations. The server provides tools for content management, knowledge graph navigation, and search/discovery via MCP, and can be used within environments like VS Code or Claude Desktop through configured MCP endpoints. Cloud-based features are available via subscription, including authentication, bidirectional cloud sync, integrity checks, and mounting cloud storage, while local data remains stored as Markdown files by default.