Head to head
Echo Memory vs Citadel
Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.
No reviews yet
Shared memory for AI agents, as a graph in your own Postgres. Writes never call an LLM.
Full listingNo reviews yet
Encrypted-first embedded database with vector search and agent memory, exposed as MCP tools
Full listingThe short version
Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. The safety scan favours Echo Memory (92/100 against 82). Echo Memory is hosted and callable through the gateway; Citadel runs on your own machine.
| Echo Memory | Citadel | |
|---|---|---|
| User rating | No reviews yet | No reviews yet |
| Safety grade | A92/100 | B82/100 |
| Adoption | Growing | Growing |
| GitHub stars | 2 | 3 |
| Downloads / week | – | 594 |
| Runs where | Hosted (remote) | Your machine (local) |
| Gateway-ready | Yes | No |
| Tools | — | — |
| Write actions | — | — |
| Price per call | Free | Free |
| Licence | Apache-2.0 | Apache-2.0 |
| Last release | 2026-09-19 | 2026-09-13 |
| Category | Databases | Databases |