Decision Workspace
ncd-memory vs pensyve-core vs rexis
Side-by-side comparison of Rust crates
42
ncd-memory
experimentalv0.1.0
Brain-agnostic external memory for AI agents using NCD/GZIP semantic search. No embedding model required.
54
pensyve-core
experimentalv2.5.0
Universal memory runtime for AI agents — episodic, semantic, and procedural memory with 8-signal fusion retrieval
42
rexis
experimentalv0.1.0
Rexis - Agentic AI Framework for Rust with memory-first agents, RAG, and graph orchestration
Core Metrics
| ncd-memory | pensyve-core | rexis | |
|---|---|---|---|
| Health Score | 42 | 54 | 42 |
| Total Downloads | 14 | 182 | 34 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 4 | 0 |
| Releases | 1 | 13 | 1 |
| Last Updated | 9d ago | 1d ago | 197d ago |
| Age | 9d | 1m | 6m |
Health Breakdown
ncd-memory
Maintenance
12
Quality
13
Community
6
Popularity
1
Documentation
10
pensyve-core
Maintenance
13
Quality
15
Community
8
Popularity
3
Documentation
15
rexis
Maintenance
5
Quality
16
Community
6
Popularity
2
Documentation
13
Technical Details
| ncd-memory | pensyve-core | rexis | |
|---|---|---|---|
| Version | 0.1.0 | 2.5.0 | 0.1.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | Apache-2.0 | MIT |
| Dependencies | 7 | 25 | 4 |
| Crate Size | 25KB | 407KB | 28KB |
| Features | 0 | 3 | 5 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | — | 1.88 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •pensyve-core leads with a health score of 54/100, but none of the options score above 80.
- •ncd-memory, rexis are pre-1.0 — API may change.