Decision Workspace
kotoba-db-engine-memory vs codex-memory vs lsm_storage_engine
Side-by-side comparison of Rust crates
43
kotoba-db-engine-memory
experimentalv0.1.16
In-memory database engine for KotobaDB
52
codex-memory
growingv3.0.15
A simple memory storage service with MCP interface for Claude Desktop
46
lsm_storage_engine
experimentalv0.1.0
A high-performance, zero-dependency LSM-Tree storage engine in pure Rust.
Core Metrics
| kotoba-db-engine-memory | codex-memory | lsm_storage_engine | |
|---|---|---|---|
| Health Score | 43 | 52 | 46 |
| Total Downloads | 775 | 20.9K | 15 |
| 30d Downloads | 61 | 75 | 3 |
| Dependents | 4 | 0 | 0 |
| Releases | 1 | 68 | 1 |
| Last Updated | 191d ago | 199d ago | 40d ago |
| Age | 6m | 7m | 1m |
Health Breakdown
kotoba-db-engine-memory
Maintenance
5
Quality
14
Community
8
Popularity
3
Documentation
13
codex-memory
Maintenance
15
Quality
16
Community
6
Popularity
5
Documentation
10
lsm_storage_engine
Maintenance
11
Quality
15
Community
6
Popularity
1
Documentation
13
Technical Details
| kotoba-db-engine-memory | codex-memory | lsm_storage_engine | |
|---|---|---|---|
| Version | 0.1.16 | 3.0.15 | 0.1.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | Apache-2.0 | GPL-3.0 | MIT |
| Dependencies | 3 | 25 | 0 |
| Crate Size | 16KB | 214KB | 21KB |
| Features | 0 | 2 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •codex-memory leads with a health score of 52/100, but none of the options score above 80.
- •kotoba-db-engine-memory, lsm_storage_engine are pre-1.0 — API may change.