Decision Workspace
fathom-mcp vs embacle vs umf
Side-by-side comparison of Rust crates
43
fathom-mcp
experimentalv0.1.0
CLI + MCP server wrapping the OpenAI Deep Research API
56
embacle
experimentalv0.14.3
LLM runner library — wraps 12 AI CLI tools as pluggable LLM providers with agent loop, guardrails, and cost tracking
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
Core Metrics
| fathom-mcp | embacle | umf | |
|---|---|---|---|
| Health Score | 43 | 56 | 64 |
| Total Downloads | 18 | 448 | 608 |
| 30d Downloads | 18 | 449 | 128 |
| Dependents | 0 | 59 | 212 |
| Releases | 1 | 24 | 10 |
| Last Updated | 17d ago | today | 16d ago |
| Age | 17d | 27d | 4m |
Health Breakdown
fathom-mcp
Maintenance
12
Quality
11
Community
6
Popularity
2
Documentation
12
embacle
Maintenance
16
Quality
13
Community
11
Popularity
3
Documentation
13
umf
Maintenance
18
Quality
16
Community
12
Popularity
3
Documentation
15
Technical Details
| fathom-mcp | embacle | umf | |
|---|---|---|---|
| Version | 0.1.0 | 0.14.3 | 0.2.4 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 20 | 18 | 6 |
| Crate Size | 57KB | 161KB | 36KB |
| Features | 0 | 6 | 7 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | 1.75 | — | 1.70 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •umf leads with a health score of 64/100, but none of the options score above 80.
- •umf is depended on by 212 crates — strongest ecosystem trust.