Vaultbeat: Apple Health MCP with Real-time Partner Data Monitoring
fei-yi · reddit · 2026-08-20
The author built Vaultbeat, an open-source Apple Health MCP (Model Context Protocol) server that enables agents like Claude to access and analyze health data (e.g., sleep stages, HRV) in real-time.
Core Features & Pain Points Solved:
- Real-time Push: Unlike existing MCPs that rely on manual exports or scheduled queries, Vaultbeat uses an iOS bridge to encrypt and upload data to the cloud. A local MCP server decrypts it for the agent, enabling near real-time analysis.
- Cross-Source Analysis: Agents can combine health data with life logs (e.g., gym records) for comprehensive insights, such as assessing physical condition based on HRV trends and workout volume.
- Partner Data Sharing: Supports viewing a bonded partner's health data (e.g., sleep details) with authorization, useful for long-distance relationships.
Privacy & Security:
- Data is end-to-end encrypted, with the key stored only on the user's phone. The MCP server must run in a trusted environment (local or private VPS) and obtains decryption capabilities via QR code scanning. Users have granular control over data sharing permissions.
The app is available on the App Store, and the MCP server code is open source.
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