03/09/2026
Building a second brain isn't about saving more links. It's about knowing what to keep, what to connect, and what AI should actually touch.
Build Your Second Brain with Claude + Obsidian is a practical evening build: use Obsidian as your local knowledge base, and Claude as the layer that reads, links and organises it — safely.
You'll learn to:
- keep a vault of plain Markdown files you fully control
- connect Claude via a local REST API and MCP
- keep API keys out of chats and public notes
- separate raw sources from your own derived knowledge
- add live data with minimum-necessary access
Explore the course preview: https://learning.ai-impress.com/courses/brain-claude-obsidian