brain² connects your mail, calendar, GitHub, and notes into a single local vault — powered by your existing Claude or Codex subscription. One place to think, track, and close loops. Stop switching tabs.
Wake up. Your daily note is ready — with yesterday's unfinished loops, today's calendar, and what your mail is asking for. In markdown. On disk.
Your notes live as plain markdown in an Obsidian vault you own. brain² reads, writes, and remembers. Switch machines without losing anything.
Bring your own subscription. We bolt it into the right shape for notebook work — context, tools, memory, and a UI that isn't chat.
Every tool you already pay for, piped into the daily note automatically. The agent reads them so you don't have to open seven tabs.
Tasks surface from your notes, your mail, your calendar. Check them off here, and the markdown updates. One inbox to rule them all.
Everything runs locally against your vault. Open source harness, nothing proprietary in the middle. Ship your own instance to a VPS in one click.
Give brain² the path to your Obsidian vault. It reads the markdown, nothing else.
Claude Code, Codex, or both. Use the one you already pay for. We don't charge per token.
Gmail, Calendar, GitHub, Slack, Linear, Notion. Each connector is one OAuth click.
sync across devices, team vaults, and deeper integrations.
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