Obsidian

Connects to Obsidian vaults for intelligent search and retrieval across personal knowledge bases using hierarchical tag matching, frontmatter filtering, date range queries, and fuzzy content search with configurable weights.

Obsidian MCP Server provides direct access to Obsidian vaults as a second brain, enabling intelligent search and retrieval across personal knowledge bases. Built by Ioannis Karasavvaidis with TypeScript, it offers dual storage modes (SQLite database for large vaults, in-memory Fuse.js for smaller ones) and supports hierarchical tag matching, frontmatter-based filtering by type/status/category, date range queries, and fuzzy search across note content with configurable search weights. The implementation includes security features like path traversal protection, file size limits, and test coverage, making it valuable for knowledge workers who want assistants to intelligently navigate and reference their personal note collections during conversations without manual lookup.