Decision Workspace
cnctd_ai vs umf vs onwards
Side-by-side comparison of Rust crates
46
cnctd_ai
experimentalv0.1.25
Multi-provider AI/LLM abstraction layer with MCP support (Anthropic, OpenAI, Gemini, OpenRouter)
64
umf
experimentalv0.2.4
Universal Message Format (UMF) - Provider-agnostic message representation for LLM interactions with ChatML formatting, internal hub model, and MCP support
60
onwards
experimentalv0.22.0
A flexible LLM proxy library
Core Metrics
| cnctd_ai | umf | onwards | |
|---|---|---|---|
| Health Score | 46 | 64 | 60 |
| Total Downloads | 788 | 608 | 10.2K |
| 30d Downloads | 55 | 130 | 619 |
| Dependents | 1 | 212 | 151 |
| Releases | 20 | 10 | 44 |
| Last Updated | 29d ago | 16d ago | 4d ago |
| Age | 5m | 4m | 7m |
Health Breakdown
cnctd_ai
Maintenance
17
Quality
12
Community
4
Popularity
3
Documentation
10
umf
Maintenance
18
Quality
16
Community
12
Popularity
3
Documentation
15
onwards
Maintenance
19
Quality
9
Community
12
Popularity
5
Documentation
15
Technical Details
| cnctd_ai | umf | onwards | |
|---|---|---|---|
| Version | 0.1.25 | 0.2.4 | 0.22.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT OR Apache-2.0 | MIT |
| Dependencies | 21 | 6 | 35 |
| Crate Size | 169KB | 36KB | 176KB |
| Features | 2 | 7 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | 1.70 | 1.88.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •umf leads with a health score of 64/100, but none of the options score above 80.
- •onwards has the most downloads (10.2K), suggesting wider adoption.
- •umf is depended on by 212 crates — strongest ecosystem trust.