Decision Workspace
botcha vs fdkey vs captcha-sdk
Side-by-side comparison of Rust crates
39
botcha
experimentalv0.0.0
Rust SDK for Botcha — the reverse CAPTCHA for AI agents. Coming soon.
45
fdkey
experimentalv0.1.1
FDKEY verification primitives for MCP servers and HTTP backends — gate AI-agent access behind LLM-only puzzles.
53
captcha-sdk
experimentalv0.0.1
Unified server-side CAPTCHA verification for Rust
Core Metrics
| botcha | fdkey | captcha-sdk | |
|---|---|---|---|
| Health Score | 39 | 45 | 53 |
| Total Downloads | 20 | 53 | 15 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 0 | 2 |
| Releases | 1 | 3 | 1 |
| Last Updated | 121d ago | 64d ago | 1d ago |
| Age | 4m | 2m | 1d |
Health Breakdown
botcha
Maintenance
7
Quality
15
Community
5
Popularity
2
Documentation
10
fdkey
Maintenance
10
Quality
12
Community
6
Popularity
2
Documentation
15
captcha-sdk
Maintenance
13
Quality
17
Community
7
Popularity
1
Documentation
15
Technical Details
| botcha | fdkey | captcha-sdk | |
|---|---|---|---|
| Version | 0.0.0 | 0.1.1 | 0.0.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 0 | 11 | 6 |
| Crate Size | 986B | 34KB | 46KB |
| Features | 0 | 0 | 11 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | — | 1.75 | 1.88 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •captcha-sdk leads with a health score of 53/100, but none of the options score above 80.
- •fdkey has the most downloads (53), suggesting wider adoption.