seekdb

The AI-Native Search Database. Best for agent storage, it unifies vector, text, structured, and semi-structured data into a single engine. This all-in-one database makes agents smarter, easier to run, and more stable. Maintained by oceanbase on GitHub, where it has earned 2,856 stars from the community.

It's actively developed around mysql, embedded-database, ai-agents, and is a solid reference for anyone building with these tools.