open-sunsama

The first AI-native, open-source task manager. MCP server for Claude/Cursor, REST API, time blocking, kanban board. Self-hostable Sunsama alternative. Maintained by ShadowWalker2014 on GitHub, where it has earned 39 stars from the community.

It's actively developed around ai, bun, calendar, and is a solid reference for anyone building with these tools.