markdown-vault-mcp

markdown-vault-mcp

A generic markdown vault MCP server with FTS5 full-text search, semantic vector search, frontmatter-aware indexing, incremental reindexing, and non-markdown attachment support.

Documentation | Config wizard | PyPI | Docker

Point it at a directory of Markdown files (an Obsidian vault, a docs folder, a Zettelkasten, a PARA vault) and it exposes search, read, write, and edit tools over the Model Context Protocol.

Features

• Full-text search — SQLite FTS5 with BM25 scoring, porter stemming
• Semantic search — cosine similarity over embedding vectors (FastEmbed, Ollama, or OpenAI)
• Hybrid search — Reciprocal Rank Fusion combining FTS5 and vector results
• Diversity-aware ranking — each search result list caps a single document at 2 chunks (configurable), downweights chunks of long documents, and returns sentence-scale snippets — bounded LLM context cost per query, with full-section recovery via read(path, section=heading)
• Adaptive heading-level chunking — long sections are recursively re-split at deeper heading levels (H1 → H6) until each chunk fits a configurable word budget, improving retrieval precision on synthesising essays without manual restructuring