The knowledge engine that tells AI what it knows, what it doesn't, and what not to make up.
| Feature | Eruka | Mem0 | Zep | Letta |
|---|---|---|---|---|
| Knowledge States | ✓ | ✗ | ✗ | ✗ |
| Gap Detection | ✓ | ✗ | ✗ | ✗ |
| Constraint Injection | ✓ | ✗ | ✗ | ✗ |
| MCP Native | ✓ | ✗ | ✗ | ✗ |
| Multi-tenant | ✓ | ✗ | ✗ | ✗ |
| Rust Performance | ✓ | ✗ | ✗ | ✗ |