Decision Workspace
siumai-registry vs pmcp vs adk-core
Side-by-side comparison of Rust crates
51
siumai-registry
experimentalv0.11.0-beta.9
Registry and factories for siumai
72
pmcp
growingv2.15.0
High-quality Rust SDK for Model Context Protocol (MCP) with full TypeScript SDK compatibility
69
adk-core
growingv1.0.0
Core traits and types for Rust Agent Development Kit (ADK-Rust) agents, tools, sessions, and events
Core Metrics
| siumai-registry | pmcp | adk-core | |
|---|---|---|---|
| Health Score | 51 | 72 | 69 |
| Total Downloads | 549 | 74.4K | 26.0K |
| 30d Downloads | 0 | 2.9K | 7.1K |
| Dependents | 5 | 897 | 580 |
| Releases | 5 | 74 | 27 |
| Last Updated | 47d ago | 3d ago | 36d ago |
| Age | 6m | 11m | 7m |
Health Breakdown
siumai-registry
Maintenance
16
Quality
13
Community
6
Popularity
3
Documentation
13
pmcp
Maintenance
19
Quality
16
Community
16
Popularity
6
Documentation
15
adk-core
Maintenance
18
Quality
17
Community
14
Popularity
5
Documentation
15
Technical Details
| siumai-registry | pmcp | adk-core | |
|---|---|---|---|
| Version | 0.11.0-beta.9 | 2.15.0 | 1.0.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT | Apache-2.0 |
| Dependencies | 36 | 78 | 14 |
| Crate Size | 236KB | 1.2MB | 93KB |
| Features | 26 | 29 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | 1.91.0 | 1.94.0 |
| Owners | 1 | 2 | 1 |
Links
Quick Verdict
- •pmcp leads with a health score of 72/100, but none of the options score above 80.
- •pmcp is depended on by 897 crates — strongest ecosystem trust.
- •siumai-registry is pre-1.0 — API may change.