About Obsidian Wiki
Obsidian Wiki is an MCP server in the Security category: framework for AI agents to build and maintain a digital brain through Obsidian wiki | Memory System for Agents.
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Install
claude mcp add obsidian-wiki -- npx -y obsidian-wiki-mcpnpx -y obsidian-wiki-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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README
Obsidian wiki MCP
MCP server implementing Karpathy's LLM Wiki pattern for Obsidian vaults.
Solves document drift — your vault stays up-to-date as knowledge evolves across AI sessions.
fluid not opinionated — bring your own folder structure
storage not intelligence — the server stores; the LLM decides
always searchable — BM25 index rebuilt on every write
Design principle: The server is a pure storage/retrieval layer. All content decisions (what to write, how to synthesize) are made by the host LLM (Claude). The server never calls an AI model.
Quick Start
1. Add to your AI client:
Claude Code
claude mcp add obsidian-wiki -- npx -y obsidian-wiki-mcp --vault "/path/to/your/vault"
Kiro CLI
kiro mcp add obsidian-wiki -- npx -y obsidian-wiki-mcp --vault "/path/to/your/vault"
OpenAI Codex CLI
codex --mcp-config '{"obsidian-wiki":{"command":"npx","args":["-y","obsidian-wiki-mcp","--vault","/path/to/your/vault"]}}'
Paths with spaces must be quoted. See Configuration for all installation options.
2. Initialize the vault:
Call wiki_init() to initialize the vault.
3. Start using:
Ingest this session into the wiki: [paste content]
Use wiki_query to find information about [topic]
Documentation
| Doc | Description |
|---|---|
| Getting Started | First-time setup, existing vault migration, CLAUDE.md / AGENTS.md |
| Vault Structure | Folder layout, page format, tags, naming convention |
| Tools Reference | All MCP tools with parameters and examples |
| Workflows | Common usage patterns |
| Configuration | Claude Code setup, server config file |
| Troubleshooting | Common issues and fixes |
Recent tool contract update:
wiki_write_pageandwiki_apply_fixnow include adifffield (unified diff) in write responses where applicable.- See Tools Reference for exact behavior by tool/action.
License
MIT
README copy captured when this server was indexed; it may lag the repository. The original is authoritative.