Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, perso…
9,980 stars1,161 forksPythonUpdated 5/28/2026100% free · open source
What it does
Claude-Obsidian is a self-organizing AI second brain that reads, links, and files sources into a connected knowledge graph of plain Markdown for Obsidian and Claude Code.
•When you need to organize and connect a large number of notes and sources in Obsidian
•When you want to use AI-powered note-taking and personal knowledge management
•When you're looking for an open-source alternative to Notion with advanced AI features
Quick start
1Create a new Obsidian vault and add the claude-obsidian plugin
2Configure the plugin by creating a `config.json` file with your Claude API key
3Drop a source (e.g. a Markdown file or a URL) into the `inbox` folder
4Run the `claude` command to process the source and create a new note
5Explore the generated knowledge graph by opening the `graph.md` file
Ready-to-paste prompt
Drop a Markdown file containing a research paper into the `inbox` folder and run `claude --source inbox/research_paper.md --output graph.md` to generate a new note with links and connections
Heads up: Make sure you have a Claude API key and Python 3.8 or later installed before running the `claude` command, as the plugin relies on these dependencies to function correctly
Saves to your device
Topics
agent-skills
ai-note-taking
ai-second-brain
claude-code
claude-code-skill
claude-memory
claude-plugin
karpathy-llm-wiki
knowledge-graph
knowledge-management
note-taking
notion-alternative
obsidian
obsidian-ai
obsidian-plugin
obsidian-second-brain
open-source
personal-knowledge-management
pkm
second-brain
What's inside — free to inspect
No purchase needed
Read the entire source before you build — unlike paid marketplaces that hide it behind a buy button.
16
top-level files
18
folders
33.4M
repo size
MIT
license
Key files
AGENTS.md
README.md
File tree
_templates/
.claude-plugin/
.cursor/
.github/
.obsidian/
.raw/
.vault-meta/
.windsurf/
agents/
assets/
bin/
commands/
docs/
hooks/
scripts/
skills/
tests/
wiki/
.gitignore
AGENTS.md
ATTRIBUTION.md
CHANGELOG.md
CITATION.cff
CLAUDE.md
Quick Actions
Details
Creator
AgriciDaniel
Language
Python
Category
ai-agent
Published
4/7/2026
Are you the creator of this tool? Claim your listing → and earn 85% of every sale.