Decision Workspace
conch-core vs lorekeeper vs engram-core
Side-by-side comparison of Rust crates
42
conch-core
experimentalv0.2.0
Biological memory engine for AI agents — memories strengthen with use, fade with time
48
lorekeeper
experimentalv0.3.3
Agent long-term memory bank — MCP server with SQLite and FTS5
46
engram-core
experimentalv0.19.0
AI Memory Infrastructure - Persistent memory for AI agents with semantic search
Core Metrics
| conch-core | lorekeeper | engram-core | |
|---|---|---|---|
| Health Score | 42 | 48 | 46 |
| Total Downloads | 58 | 65 | 148 |
| 30d Downloads | 33 | 65 | 123 |
| Dependents | 2 | 0 | 0 |
| Releases | 1 | 5 | 11 |
| Last Updated | 35d ago | 9d ago | 8d ago |
| Age | 1m | 11d | 1m |
Health Breakdown
conch-core
Maintenance
11
Quality
12
Community
7
Popularity
2
Documentation
10
lorekeeper
Maintenance
16
Quality
12
Community
6
Popularity
2
Documentation
12
engram-core
Maintenance
12
Quality
12
Community
6
Popularity
3
Documentation
13
Technical Details
| conch-core | lorekeeper | engram-core | |
|---|---|---|---|
| Version | 0.2.0 | 0.3.3 | 0.19.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 8 | 14 | 59 |
| Crate Size | 60KB | 57KB | 798KB |
| Features | 0 | 0 | 26 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | — | 1.94.0 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •lorekeeper leads with a health score of 48/100, but none of the options score above 80.
- •engram-core has the most downloads (148), suggesting wider adoption.