claudian
by YishenTu
Claudian is an Obsidian plugin that puts AI coding agents such as Claude Code, Codex and OpenCode inside your notes vault. The agent can read, write, search and edit your notes and run commands, using the vault as its working folder.
- Stars
- 15.9k +10 a day
- Licence
- MIT
- Runs on
- Your computer
- Setup
- Moderate
- Language
- TypeScript
- Age
- 332 days
What you can do with it
- Chat with an AI agent that can read, edit and search the files in your Obsidian vault
- Select text in a note and have the AI rewrite it in place, with a preview of the changes
- Group several agent sessions into a project that shares instructions and memory, and connect extra tools through MCP servers
Make money with it
A freelancer could offer to set up and organise Obsidian knowledge bases for clients, using the agent to speed up cleaning and structuring their notes.
An idea, not financial advice. Check the licence before charging for anything built on it.
Ways a business could use it
- Tidy, summarise and reorganise a company knowledge base or client notes held in Obsidian without doing it by hand
- Draft and edit documents, proposals and meeting notes directly inside the vault to save writing time
Can you use it commercially?
Free to use, change and sell, including in paid products. Keep the copyright notice.
Not legal advice. Read the project's licence file before building a product on it.
Getting it running
Install it from Obsidian's Community plugins browser, or build it from source with npm, after installing at least one agent such as Claude Code or Codex.
Follow the official instructions in the project README.
Things to check
- Needs a separate agent install (Claude Code, Codex, etc.) and a paid subscription or API key
- Your notes and attached files are sent to the chosen AI provider
- Agents can run commands and change files in your vault, so keep backups
- Desktop only; some features are marked experimental
Checked 03 Nov 2026. Summary drafted by AI from the project's README.
