Postern

Postern is a powerful, self-hosted gateway designed to seamlessly connect your vital personal data—such as financial information, health records, calendar events, emails, contacts, and home automation—to AI agents and other integrations. Its unique architecture eliminates the need for manual glue code, credentials sharing, or endpoint guessing, making it a developer-friendly solution for secure and streamlined data access. Most data is served from a local cache for efficiency, while live information can be fetched as needed, ensuring real-time updates. With granular access controls, revocable permissions, and comprehensive audit logs, Postern prioritizes privacy and security, making it ideal for users who want control over their sensitive information. Its open-source nature and easy integration potential make it suitable for developers, startups, and enterprises aiming to build smarter, more secure AI-driven workflows.