This Obsidian MCP server, developed by cyanheads, enables AI models to interact with Obsidian vaults through a standardized interface. Built with TypeScript and leveraging the Model Context Protocol SDK, it provides tools for file operations, content search, and metadata management within Obsidian. The implementation features atomic operations, efficient query processing, and automatic timestamp handling. It's particularly useful for AI assistants and applications needing to manage knowledge bases in Obsidian, enabling use cases like note-taking, content organization, and information retrieval without dealing directly with Obsidian's API complexities.
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Highlight AIRead a note as raw content, full structured form (content + frontmatter + tags + stat, with optional outgoing links), structural document map, or a single section.
List notes and subdirectories under a vault path. Recursive walk (default depth 2, max depth 20; 1000-entry cap) with optional `extension` and `nameRegex` filters.
List every tag found across the vault with usage counts, including hierarchical parents. Optional `nameRegex` post-filters the result set.
List Obsidian command-palette commands, optionally filtered by `nameRegex` on display name. **Opt-in via `OBSIDIAN_ENABLE_COMMANDS=true`** (paired with `obsidian_execute_command`).
Search the vault by text, JSONLogic, or BM25-ranked Omnisearch (when the plugin is reachable). Results paginate via opaque cursors.
Create a note, replace a single section in place, or — with `overwrite: true` — clobber an existing file. Refuses whole-file writes against an existing path by default.
Append content to a note. Without `section`, creates the file if missing. With `section`, appends to a specific heading, block, or frontmatter field (file must exist).
Surgical `append` / `prepend` / `replace` against a heading, block reference, or frontmatter field.
Body-wide search-replace inside a single note. Literal or regex matching with whole-word, whitespace-flexible, and case-sensitivity options; supports capture-group replacement.
Atomic `get` / `set` / `delete` on a single frontmatter key.
Add, remove, or list tags. Defaults to the frontmatter `tags:` array; `location: 'inline'` or `'both'` opts into mutating the note body.
Permanently delete a note. Elicits human confirmation when the client supports it.
Open a file in the Obsidian app UI, with `failIfMissing` and `newLeaf` toggles.
Execute an Obsidian command-palette command by ID. **Opt-in via `OBSIDIAN_ENABLE_COMMANDS=true`.**
