I want to introduce my latest open-source vector database project, OasysDB. The main feature that sets it apart from other vector database is that it supports multiple indexing graphs of a single key-value store.
This functionality allows you to version the index, create different graphs for different subset of data, and test different optimization strategies.
OasysDB communicates through its REST API so you can get started with it without external dependencies.
OasysDB is still very early in development and thus, only provides functionality to make it viable as a vector database.
Anyway, I would really appreciate it if you drop in some feedback, feature requests, or even contributions. Have a good weekend!