How Integrations Work
Personal OS connects to external tools through MCP (Model Context Protocol) servers. MCP is an open standard that lets AI agents communicate with external services using structured tool calls — the same way a developer calls an API, but designed for agent workflows. When your Chief of Staff checks your calendar, scans your inbox, or writes a note to Notion, it’s doing so through an MCP server that manages the authentication and data formatting.
Most integrations are read-heavy. The agent pulls context — what’s on your calendar today, what’s in your inbox, what your Oura readiness score is — and uses it to inform your daily loop. Write operations (creating calendar events, drafting emails, posting notes) always surface for your review before executing. The system is designed so that the agent gathers and synthesizes; you decide and act.
What’s Connectable
Productivity & Time
Google Calendar — the most important integration. Your agent checks your schedule before every planning session, avoids scheduling conflicts, and timeboxes your committed work onto the calendar. Without calendar access, planning is guesswork.
Google Tasks / Reminders — optional extension of the GTD capture system for time-based reminders.
Communication
Gmail — powers the communication intelligence scan: surfacing important emails, flagging time-sensitive threads, and supporting inbox triage during weekly review.
Slack — scans @mentions and flagged messages. Particularly useful for surfacing team commitments and follow-up items during weekly review.
Knowledge & Documents
Notion — the primary knowledge base for most users. Stores daily journals, contact profiles, meeting notes, and project documentation that lives outside the markdown file system.
Google Docs / Drive — for document-heavy workflows and shared team resources.
Health Data
Oura Ring — native MCP support for sleep, readiness, HRV, and resilience scores. Powers the health-analyst agent’s morning briefings.
Open Wearables — self-hosted unified API for Garmin, Polar, Suunto, and Apple Health. Requires local setup but consolidates multi-device data.
What’s Not Here Yet
This is v1 of the integration layer. Step-by-step setup guides for each service, authentication walkthroughs, and advanced configuration options are planned for a future release. For now: if an MCP server exists for your tool, it can connect. The community is building new MCP servers rapidly — check the MCP registry for the current landscape.
The Right Mental Model
Think of integrations as extending your agent’s senses, not as automations that do things for you. A well-integrated Personal OS means your Chief of Staff can answer “what’s actually happening today” before you’ve had your first coffee — and that’s where the leverage is.