Decision Workspace
siumai-registry vs pmcp vs llm_models_spider
Side-by-side comparison of Rust crates
56
siumai-registry
experimentalv0.11.0-beta.8
Registry and factories for siumai
71
pmcp
growingv2.8.1
High-quality Rust SDK for Model Context Protocol (MCP) with full TypeScript SDK compatibility
71
llm_models_spider
experimentalv0.1.95
Auto-updated registry of LLM model capabilities (vision, audio, etc.)
Core Metrics
| siumai-registry | pmcp | llm_models_spider | |
|---|---|---|---|
| Health Score | 56 | 71 | 71 |
| Total Downloads | 338 | 65.4K | 37.6K |
| 30d Downloads | 0 | 4.1K | 12.1K |
| Dependents | 4 | 830 | 772 |
| Releases | 4 | 67 | 96 |
| Last Updated | 7d ago | 8d ago | 21d ago |
| Age | 4m | 10m | 3m |
Health Breakdown
siumai-registry
Maintenance
21
Quality
13
Community
6
Popularity
3
Documentation
13
pmcp
Maintenance
18
Quality
16
Community
16
Popularity
6
Documentation
15
llm_models_spider
Maintenance
24
Quality
15
Community
14
Popularity
5
Documentation
13
Technical Details
| siumai-registry | pmcp | llm_models_spider | |
|---|---|---|---|
| Version | 0.11.0-beta.8 | 2.8.1 | 0.1.95 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT | MIT |
| Dependencies | 32 | 76 | 7 |
| Crate Size | 216KB | 1.0MB | 59KB |
| Features | 23 | 28 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | 1.91.0 | — |
| Owners | 1 | 2 | 1 |
Links
Quick Verdict
- •pmcp leads with a health score of 71/100, but none of the options score above 80.
- •pmcp is depended on by 830 crates — strongest ecosystem trust.
- •siumai-registry, llm_models_spider are pre-1.0 — API may change.