Persistent memory for AI agents, important things stick, forgotten things fade, outdated facts get pruned automatically using the Ebbinghaus forgetting curve.
Overview
- Ebbinghaus forgetting curve: decay rates vary by category (facts ~24 days, failures ~11 days, strategies ~38 days)
- Hybrid vector + graph retrieval: two round search surfaces related memories below the similarity cut off
- Contradiction detection: automatically updates outdated facts instead of duplicating them
- Multi-agent support: shared and private memory with API key authentication
- Zero setup: DuckDB by default, PostgreSQL + pgvector optional