Mem0
Memory & StateOpen source · Apache-2.0★ 66,556（2026-10-04）Self-hosted
Open-source and hosted memory layer that gives agents persistent cross-session memory.
Mem0 is an Apache-2.0 memory layer (with a paid Pro tier for some features) that adds persistent cross-session memory to agents via add/search APIs and an optional graph-based memory; it reported 65,000+ GitHub stars as of mid-2026 and is backed by Y Combinator.
Key facts
| Category | Memory & State |
|---|---|
| License | Apache-2.0 |
| Language | Python |
| Self-hosted | Yes |
| GitHub stars | 66,556 (2026-10-04) |
| Last push | 2026-10-01 |
| Last verified | 2026-10-04 |
| Repository | https://github.com/mem0ai/mem0 |