Vector Databases & AI Memory Systems Tools

PostgreSQL extension adding native vector similarity search.

Meta's open-source library for billion-scale similarity search.

Embedded vector database with zero-copy, in-process access.

In-memory vector search via Redis Stack.

Vector search built directly into MongoDB's document platform.

Memory layer SDK giving LLM agents conversation continuity.

Memory platform purpose-built for AI agent conversation history.

Agent memory framework, formerly known as MemGPT.