Decision Workspace
post-cortex-core vs recall-echo vs post-cortex
Side-by-side comparison of Rust crates
51
post-cortex-core
experimentalv0.3.1
Core domain library for post-cortex: lock-free conversation memory, semantic search, knowledge graph, and storage backends. Transport-agnostic — no axum/tonic/rmcp.
49
recall-echo
experimentalv3.11.0
Persistent memory system with knowledge graph — for any LLM tool
49
post-cortex
experimentalv0.3.1
Intelligent conversation memory system for AI assistants — persistent knowledge storage, semantic search, knowledge graph, MCP + gRPC transports. Facade crate re-exporting the post-cortex workspace stack.
Core Metrics
| post-cortex-core | recall-echo | post-cortex | |
|---|---|---|---|
| Health Score | 51 | 49 | 49 |
| Total Downloads | 58 | 219 | 26 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 10 | 3 | 0 |
| Releases | 2 | 11 | 2 |
| Last Updated | 8d ago | 6d ago | 8d ago |
| Age | 8d | 3m | 8d |
Health Breakdown
post-cortex-core
Maintenance
13
Quality
12
Community
9
Popularity
2
Documentation
15
recall-echo
Maintenance
13
Quality
16
Community
7
Popularity
3
Documentation
10
post-cortex
Maintenance
13
Quality
13
Community
6
Popularity
2
Documentation
15
Technical Details
| post-cortex-core | recall-echo | post-cortex | |
|---|---|---|---|
| Version | 0.3.1 | 3.11.0 | 0.3.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | AGPL-3.0-only | MIT |
| Dependencies | 32 | 17 | 33 |
| Crate Size | 80KB | 206KB | 93KB |
| Features | 2 | 5 | 5 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.90 | — | 1.90 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •post-cortex-core leads with a health score of 51/100, but none of the options score above 80.
- •recall-echo has the most downloads (219), suggesting wider adoption.
- •post-cortex-core, post-cortex are pre-1.0 — API may change.