Decision Workspace
vsmtp-rsasl vs rsasl vs pulseengine-mcp-security-middleware
Side-by-side comparison of Rust crates
50
vsmtp-rsasl
growingv1.5.1-rc2
See https://crates.io/crates/rsasl
70
rsasl
stablev2.2.1
The Rust SASL framework, aimed at both middleware-style protocol implementation and application code. Designed to make SASL authentication simple and safe while handing as much control to the user as possible.
52
pulseengine-mcp-security-middleware
experimentalv0.17.0
Zero-configuration security middleware for MCP servers with Axum integration
Core Metrics
| vsmtp-rsasl | rsasl | pulseengine-mcp-security-middleware | |
|---|---|---|---|
| Health Score | 50 | 70 | 52 |
| Total Downloads | 11.8K | 432.3K | 1.5K |
| 30d Downloads | 3 | 43.4K | 10 |
| Dependents | 19 | 104 | 0 |
| Releases | 4 | 39 | 8 |
| Last Updated | 1289d ago | 45d ago | 96d ago |
| Age | 3y 10m | 5y 11m | 7m |
Health Breakdown
vsmtp-rsasl
Maintenance
5
Quality
16
Community
12
Popularity
5
Documentation
12
rsasl
Maintenance
16
Quality
18
Community
14
Popularity
7
Documentation
15
pulseengine-mcp-security-middleware
Maintenance
15
Quality
12
Community
6
Popularity
4
Documentation
15
Technical Details
| vsmtp-rsasl | rsasl | pulseengine-mcp-security-middleware | |
|---|---|---|---|
| Version | 1.5.1-rc2 | 2.2.1 | 0.17.0 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | MIT | Apache-2.0 OR MIT | MIT OR Apache-2.0 |
| Dependencies | 3 | 17 | 27 |
| Crate Size | 20KB | 94KB | 42KB |
| Features | 2 | 17 | 3 |
| Yanked % | 100.0% | 7.7% | 0.0% |
| Edition | 2018 | 2021 | 2024 |
| MSRV | — | 1.65.0 | 1.88 |
| Owners | 2 | 2 | 1 |
Links
Quick Verdict
- •rsasl leads with a health score of 70/100, but none of the options score above 80.
- •rsasl is depended on by 104 crates — strongest ecosystem trust.
- •⚠ vsmtp-rsasl has not been updated in over a year.
- •pulseengine-mcp-security-middleware is pre-1.0 — API may change.