Decision Workspace
a2a-protocol-sdk vs a2a-rust vs jamjet-a2a
Side-by-side comparison of Rust crates
54
a2a-protocol-sdk
experimentalv0.3.1
A2A protocol v1.0 — convenience umbrella re-export crate
49
a2a-rust
experimentalv0.1.0
Rust SDK for the A2A (Agent-to-Agent) protocol
47
jamjet-a2a
experimentalv0.1.2
Standalone Rust SDK for the A2A protocol — client, server, coordinator, MCP bridge
Core Metrics
| a2a-protocol-sdk | a2a-rust | jamjet-a2a | |
|---|---|---|---|
| Health Score | 54 | 49 | 47 |
| Total Downloads | 76 | 18 | 94 |
| 30d Downloads | 76 | 18 | 94 |
| Dependents | 0 | 0 | 0 |
| Releases | 3 | 1 | 3 |
| Last Updated | 7d ago | 13d ago | 8d ago |
| Age | 12d | 13d | 8d |
Health Breakdown
a2a-protocol-sdk
Maintenance
14
Quality
17
Community
6
Popularity
2
Documentation
15
a2a-rust
Maintenance
12
Quality
14
Community
6
Popularity
2
Documentation
15
jamjet-a2a
Maintenance
13
Quality
14
Community
6
Popularity
2
Documentation
12
Technical Details
| a2a-protocol-sdk | a2a-rust | jamjet-a2a | |
|---|---|---|---|
| Version | 0.3.1 | 0.1.0 | 0.1.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | Apache-2.0 | Apache-2.0 OR MIT | Apache-2.0 OR MIT |
| Dependencies | 3 | 14 | 18 |
| Crate Size | 23KB | 78KB | 40KB |
| Features | 9 | 3 | 6 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | 1.93 | 1.85 | 1.75 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •a2a-protocol-sdk leads with a health score of 54/100, but none of the options score above 80.
- •jamjet-a2a has the most downloads (94), suggesting wider adoption.