Decision Workspace
rh-vcl vs octofhir-fhirpath vs helios-fhir
Side-by-side comparison of Rust crates
ValueSet Compose Language (VCL) is a domain-specific language for expressing ValueSet CLDs in a compact syntax suitable for use within a URL and enabling a new family of implicit ValueSet URIs that are usable across all code systems. The design and development of VCL was inspired by the Expression Constraint Language (ECL) from SNOMED CT.
A high-performance FHIRPath implementation in Rust with comprehensive spec compliance
The helios-fhir crate is the comprehensive FHIR (Fast Healthcare Interoperability Resources) specification model implementation that contains strongly-typed Rust representations of all FHIR data types, and resourcess for each supported version of the FHIR specification.
Core Metrics
| rh-vcl | octofhir-fhirpath | helios-fhir | |
|---|---|---|---|
| Health Score | 52 | 55 | 54 |
| Total Downloads | 198 | 13.3K | 15.2K |
| 30d Downloads | 0 | 0 | 6.9K |
| Dependents | 8 | 6 | 234 |
| Releases | 9 | 61 | 47 |
| Last Updated | 3d ago | 9d ago | 19d ago |
| Age | 2m | 11m | 10m |
Health Breakdown
Technical Details
| rh-vcl | octofhir-fhirpath | helios-fhir | |
|---|---|---|---|
| Version | 0.2.6 | 0.4.50 | 0.2.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT |
| Dependencies | 12 | 43 | 14 |
| Crate Size | 58KB | 417KB | 4.1MB |
| Features | 2 | 4 | 7 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.91 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •octofhir-fhirpath leads with a health score of 55/100, but none of the options score above 80.
- •helios-fhir has the most downloads (15.2K), suggesting wider adoption.
- •helios-fhir is depended on by 234 crates — strongest ecosystem trust.