Decision Workspace
modelrelay vs turbomcp vs pmcp
Side-by-side comparison of Rust crates
54
modelrelay
experimentalv6.5.0
Rust SDK for the ModelRelay API
69
turbomcp
growingv3.0.10
Rust SDK for Model Context Protocol (MCP) with zero-boilerplate macros and WASM support
68
pmcp
growingv2.0.2
High-quality Rust SDK for Model Context Protocol (MCP) with full TypeScript SDK compatibility
Core Metrics
| modelrelay | turbomcp | pmcp | |
|---|---|---|---|
| Health Score | 54 | 69 | 68 |
| Total Downloads | 1.8K | 13.1K | 57.5K |
| 30d Downloads | 79 | 2.4K | 6.2K |
| Dependents | 0 | 59 | 762 |
| Releases | 77 | 69 | 60 |
| Last Updated | 53d ago | 1d ago | 3d ago |
| Age | 4m | 7m | 8m |
Health Breakdown
modelrelay
Maintenance
16
Quality
16
Community
5
Popularity
4
Documentation
13
turbomcp
Maintenance
19
Quality
19
Community
11
Popularity
5
Documentation
15
pmcp
Maintenance
19
Quality
14
Community
14
Popularity
6
Documentation
15
Technical Details
| modelrelay | turbomcp | pmcp | |
|---|---|---|---|
| Version | 6.5.0 | 3.0.10 | 2.0.2 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✓ Yes |
| License | Apache-2.0 | MIT | MIT |
| Dependencies | 24 | 25 | 73 |
| Crate Size | 217KB | 74KB | 8.0MB |
| Features | 6 | 17 | 27 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | — | 1.89.0 | 1.83.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •turbomcp leads with a health score of 69/100, but none of the options score above 80.
- •pmcp has the most downloads (57.5K), suggesting wider adoption.
- •pmcp is depended on by 762 crates — strongest ecosystem trust.