Obsidian Graph MCP Server

Example Use Cases

• 1

  Find notes by semantic meaning rather than keywords.

• 2

  Discover conceptual relationships and build knowledge graphs across notes.

• 3

  Identify highly connected notes (hubs) or isolated notes (orphans) in an Obsidian vault.

Description

This MCP server provides semantic analysis of Obsidian notes by generating high-dimensional vector embeddings to discover hidden conceptual connections and build multi-hop knowledge graphs. It supports semantic search, connection discovery, hub identification, and orphan detection, enhancing knowledge base navigation beyond keyword search. The server uses Voyage Context-3 embeddings and PostgreSQL with pgvector for fast, scalable vector search and graph traversal.