Decision Workspace
formally-smt vs smtkit vs assura-ast
Side-by-side comparison of Rust crates
40
formally-smt
experimentalv0.2025.121
the open-source formal methods toolchain - SMT abstraction layer
52
smtkit
experimentalv0.1.2
Facade crate for SMT constraint IR + SMT-LIB backends
52
assura-ast
experimentalv0.3.0
Assura AST types (Spanned, Expr, Decl, etc.) - the compiler IR
Core Metrics
| formally-smt | smtkit | assura-ast | |
|---|---|---|---|
| Health Score | 40 | 52 | 52 |
| Total Downloads | 350 | 147 | 1.2K |
| 30d Downloads | 0 | 0 | 1.2K |
| Dependents | 3 | 0 | 9 |
| Releases | 2 | 3 | 3 |
| Last Updated | 205d ago | 32d ago | 6d ago |
| Age | 6m | 5m | 10d |
Health Breakdown
formally-smt
Maintenance
9
Quality
14
Community
6
Popularity
3
Documentation
8
smtkit
Maintenance
17
Quality
16
Community
3
Popularity
3
Documentation
13
assura-ast
Maintenance
14
Quality
15
Community
9
Popularity
4
Documentation
10
Technical Details
| formally-smt | smtkit | assura-ast | |
|---|---|---|---|
| Version | 0.2025.121 | 0.1.2 | 0.3.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | non-standard | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 12 | 7 | 0 |
| Crate Size | 66KB | 33KB | 21KB |
| Features | 2 | 6 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •smtkit leads with a health score of 52/100, but none of the options score above 80.
- •assura-ast has the most downloads (1.2K), suggesting wider adoption.