Decision Workspace
a2a-client vs a2a-protocol-sdk vs a2a-protocol-client
Side-by-side comparison of Rust crates
46
a2a-client
experimentalv0.2.0
A2A Protocol Client - HTTP client for calling remote A2A agents
58
a2a-protocol-sdk
experimentalv0.6.0
Agent2Agent (A2A) protocol v1.0 — convenience umbrella re-export crate
56
a2a-protocol-client
experimentalv0.6.0
Agent2Agent (A2A) protocol v1.0 — HTTP client (hyper-backed)
Core Metrics
| a2a-client | a2a-protocol-sdk | a2a-protocol-client | |
|---|---|---|---|
| Health Score | 46 | 58 | 56 |
| Total Downloads | 4.1K | 305 | 398 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 3 | 0 | 9 |
| Releases | 4 | 9 | 9 |
| Last Updated | 108d ago | 33d ago | 33d ago |
| Age | 9m | 4m | 4m |
Health Breakdown
a2a-client
Maintenance
13
Quality
11
Community
5
Popularity
4
Documentation
13
a2a-protocol-sdk
Maintenance
17
Quality
17
Community
6
Popularity
3
Documentation
15
a2a-protocol-client
Maintenance
17
Quality
12
Community
9
Popularity
3
Documentation
15
Technical Details
| a2a-client | a2a-protocol-sdk | a2a-protocol-client | |
|---|---|---|---|
| Version | 0.2.0 | 0.6.0 | 0.6.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | Apache-2.0 | Apache-2.0 |
| Dependencies | 21 | 3 | 33 |
| Crate Size | 30KB | 23KB | 120KB |
| Features | 0 | 9 | 5 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | 1.93 | 1.93 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •a2a-protocol-sdk leads with a health score of 58/100, but none of the options score above 80.
- •a2a-client has the most downloads (4.1K), suggesting wider adoption.