Decision Workspace
agent-uri vs qhermes-a2a vs distri-a2a
Side-by-side comparison of Rust crates
41
agent-uri
experimentalv0.4.0
Parser and validator for agent:// URI scheme
36
qhermes-a2a
experimentalv26.0.0
QHermes 26 — A2A identity and authorization layer (Agent Cards, credential chains, KEM session handshake)
58
distri-a2a
experimentalv0.3.5
A2A protocol types for the Distri ecosystem
Core Metrics
| agent-uri | qhermes-a2a | distri-a2a | |
|---|---|---|---|
| Health Score | 41 | 36 | 58 |
| Total Downloads | 69 | 12 | 464 |
| 30d Downloads | 32 | 12 | 144 |
| Dependents | 2 | 0 | 24 |
| Releases | 1 | 1 | 12 |
| Last Updated | 51d ago | 9d ago | 12d ago |
| Age | 1m | 9d | 3m |
Health Breakdown
agent-uri
Maintenance
10
Quality
15
Community
7
Popularity
2
Documentation
7
qhermes-a2a
Maintenance
12
Quality
9
Community
6
Popularity
1
Documentation
8
distri-a2a
Maintenance
19
Quality
13
Community
10
Popularity
3
Documentation
13
Technical Details
| agent-uri | qhermes-a2a | distri-a2a | |
|---|---|---|---|
| Version | 0.4.0 | 26.0.0 | 0.3.5 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | LicenseRef-Copertino-1.0 | MIT |
| Dependencies | 6 | 4 | 4 |
| Crate Size | 48KB | 12KB | 14KB |
| Features | 3 | 0 | 0 |
| Yanked % | 0.0% | 100.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •distri-a2a leads with a health score of 58/100, but none of the options score above 80.
- •agent-uri, distri-a2a are pre-1.0 — API may change.