Remnus

Remnus is an open-source MCP-native workspace application that integrates databases, document pages, kanban boards, and calendars into a unified environment. By being "MCP-native," it likely supports the Model Context Protocol, enabling AI assistants to directly access and manipulate workspace data, which opens up possibilities for automated workflows and intelligent assistance.

One of its main advantages is the consolidation of several common productivity tools into one platform, reducing context switching and information silos. For developers and self-hosting enthusiasts, Remnus offers the freedom to customize, integrate, and own their data without vendor lock-in.

However, the project currently shows zero GitHub stars and forks, indicating it is very early-stage. The actual feature set, maturity, and stability are unconfirmed. Deploying Remnus requires technical ability to set up and maintain the environment, and there is no commercial support, meaning you must rely on limited community resources. The user experience and documentation are likely minimal at this point.

As an open-source tool, Remnus is free to use, but you’ll bear the infrastructure and maintenance costs.