Decision Workspace
ion-schema vs rust-mcp-schema vs reflectapi-schema
Side-by-side comparison of Rust crates
46
ion-schema
growingv0.15.0
Implementation of Amazon Ion Schema
68
rust-mcp-schema
growingv0.10.0
Type-safe implementation of the Model Context Protocol in Rust, designed to reduce errors and accelerate development with powerful utilities.
67
reflectapi-schema
growingv0.16.8
A library for defining and serializing/deserializing ReflectAPI schemas
Core Metrics
| ion-schema | rust-mcp-schema | reflectapi-schema | |
|---|---|---|---|
| Health Score | 46 | 68 | 67 |
| Total Downloads | 29.5K | 296.6K | 92.2K |
| 30d Downloads | 654 | 46.8K | 266 |
| Dependents | 13 | 150 | 190 |
| Releases | 17 | 36 | 95 |
| Last Updated | 469d ago | 14d ago | 46d ago |
| Age | 4y 3m | 1y 1m | 1y 11m |
Health Breakdown
ion-schema
Maintenance
8
Quality
13
Community
10
Popularity
5
Documentation
10
rust-mcp-schema
Maintenance
18
Quality
16
Community
12
Popularity
7
Documentation
15
reflectapi-schema
Maintenance
16
Quality
16
Community
16
Popularity
6
Documentation
13
Technical Details
| ion-schema | rust-mcp-schema | reflectapi-schema | |
|---|---|---|---|
| Version | 0.15.0 | 0.10.0 | 0.16.8 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | Apache-2.0 | MIT | Apache-2.0 |
| Dependencies | 8 | 3 | 2 |
| Crate Size | 91KB | 884KB | 14KB |
| Features | 0 | 8 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | 1.80.0 | — |
| Owners | 3 (team) | 1 | 4 |
Links
Quick Verdict
- •rust-mcp-schema leads with a health score of 68/100, but none of the options score above 80.
- •reflectapi-schema is depended on by 190 crates — strongest ecosystem trust.
- •⚠ ion-schema has not been updated in over a year.