Qdrant
Memory & StateOpen source · Apache-2.0★ 34,923（2026-10-04）Self-hosted
Rust vector search engine with HNSW and payload filtering, used for agent memory.
Qdrant is an Apache-2.0 vector search engine written in Rust, founded in Berlin in 2021 by Andre Zayarni and Andrey Vasnetsov; it combines HNSW indexing with payload filtering and is offered as Qdrant Cloud, Hybrid and Private deployments.
Key facts
| Category | Memory & State |
|---|---|
| License | Apache-2.0 |
| Language | Rust |
| Self-hosted | Yes |
| GitHub stars | 34,923 (2026-10-04) |
| Last push | 2026-10-04 |
| Last verified | 2026-10-04 |
| Repository | https://github.com/qdrant/qdrant |