obsidian-second-brain
An Obsidian plugin that transforms your note library into an AI-powered second brain.
- Region
- Overseas
- Pricing
- Free
- Open source
- Yes
- GitHub Stars
- ★ 2.2k
- Source
- GitHub
- Added
- 2026-06-07
- Last verified
- 2026-06-07

Overview
obsidian-second-brain is an Obsidian plugin that turns your note library into an AI-driven second brain. By integrating four CLI tools—Claude Code, Codex, Gemini, and OpenCode—it offers 43 commands to help users automatically update notes, conduct keyless online research, and manage Google Calendar tasks. Ideal for researchers, developers, and knowledge workers who need to efficiently manage and leverage large volumes of information.
Key features
- ▪Supports four AI platforms
- ▪Provides 43 practical commands
- ▪Automatically updates and synthesizes notes
- ▪Research without requiring API keys
Use cases
Pros
- +Excellent multi-platform compatibility
- +Rich and powerful features
- +Improves work efficiency
Limitations / notes
- -May require a learning curve
Who it's for
This overview was compiled by AI from public sources and may contain inaccuracies — please refer to the official site.
FAQ
Which AI platforms does this plugin support?
Supports Claude Code, Codex, Gemini, and OpenCode.
How do I get started with this plugin?
After installation, follow the instructions to configure and explore the provided commands.
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