Decision Workspace
nano-agent vs grain-llm-genai vs adk-core
Side-by-side comparison of Rust crates
42
nano-agent
experimentalv0.1.2
Lightweight Rust framework for building AI agents.
47
grain-llm-genai
experimentalv0.0.1-beta2
genai-backed LlmStream implementation for grain-agent. Bridges grain-agent-core's transport-agnostic agent loop to the genai crate's multi-provider chat API. PR 3a: outbound mapping only — impl LlmStream, inbound mapping, and env/quirk config land in subsequent PRs.
67
adk-core
experimentalv0.9.1
Core traits and types for Rust Agent Development Kit (ADK-Rust) agents, tools, sessions, and events
Core Metrics
| nano-agent | grain-llm-genai | adk-core | |
|---|---|---|---|
| Health Score | 42 | 47 | 67 |
| Total Downloads | 43 | 33 | 10.9K |
| 30d Downloads | 0 | 0 | 4.3K |
| Dependents | 0 | 4 | 543 |
| Releases | 3 | 2 | 26 |
| Last Updated | 63d ago | today | 2d ago |
| Age | 2m | 1d | 5m |
Health Breakdown
nano-agent
Maintenance
10
Quality
15
Community
3
Popularity
2
Documentation
12
grain-llm-genai
Maintenance
14
Quality
11
Community
7
Popularity
2
Documentation
13
adk-core
Maintenance
20
Quality
14
Community
13
Popularity
5
Documentation
15
Technical Details
| nano-agent | grain-llm-genai | adk-core | |
|---|---|---|---|
| Version | 0.1.2 | 0.0.1-beta2 | 0.9.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT | Apache-2.0 |
| Dependencies | 14 | 21 | 14 |
| Crate Size | 36KB | 59KB | 92KB |
| Features | 5 | 0 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | 1.85 | — | 1.85.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •adk-core leads with a health score of 67/100, but none of the options score above 80.
- •adk-core is depended on by 543 crates — strongest ecosystem trust.