Decision Workspace
codex-memory vs kotoba-db-engine-memory vs memrl
Side-by-side comparison of Rust crates
52
codex-memory
growingv3.0.15
A simple memory storage service with MCP interface for Claude Desktop
43
kotoba-db-engine-memory
experimentalv0.1.16
In-memory database engine for KotobaDB
38
memrl
experimentalv0.1.2
Memory-augmented reinforcement learning for Claude Code - persistent memory that learns from experience
Core Metrics
| codex-memory | kotoba-db-engine-memory | memrl | |
|---|---|---|---|
| Health Score | 52 | 43 | 38 |
| Total Downloads | 20.9K | 775 | 35 |
| 30d Downloads | 75 | 65 | 4 |
| Dependents | 0 | 4 | 0 |
| Releases | 68 | 1 | 2 |
| Last Updated | 199d ago | 191d ago | 58d ago |
| Age | 7m | 6m | 1m |
Health Breakdown
codex-memory
Maintenance
15
Quality
16
Community
6
Popularity
5
Documentation
10
kotoba-db-engine-memory
Maintenance
5
Quality
14
Community
8
Popularity
3
Documentation
13
memrl
Maintenance
11
Quality
9
Community
6
Popularity
2
Documentation
10
Technical Details
| codex-memory | kotoba-db-engine-memory | memrl | |
|---|---|---|---|
| Version | 3.0.15 | 0.1.16 | 0.1.2 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | GPL-3.0 | Apache-2.0 | Apache-2.0 |
| Dependencies | 25 | 3 | 26 |
| Crate Size | 214KB | 16KB | 105KB |
| Features | 2 | 0 | 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, memrl are pre-1.0 — API may change.