Decision Workspace
udb vs reddb-io-client-connector vs hermes-broker-macros
Side-by-side comparison of Rust crates
49
udb
experimentalv0.4.0
Universal Data Broker — a Rust gRPC broker over multiple databases (Postgres, MySQL, SQLite, MongoDB, ClickHouse, Cassandra, MSSQL, Redis, Qdrant, S3, Neo4j, …) with per-tenant RLS, 2PC, sagas, and CDC.
59
reddb-io-client-connector
experimentalv1.23.1
Workspace-internal gRPC connector used by `reddb-server` (rpc_stdio) and `reddb-client`. Splitting it out of `reddb-client` breaks the otherwise-circular path dependency between `reddb-client[embedded]` (which pulls `reddb-server`) and `reddb-server` (which needs the connector).
58
hermes-broker-macros
experimentalv0.4.1
Procedural macros for Hermes event ergonomics.
Core Metrics
| udb | reddb-io-client-connector | hermes-broker-macros | |
|---|---|---|---|
| Health Score | 49 | 59 | 58 |
| Total Downloads | 155 | 1.0K | 182 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 66 | 8 |
| Releases | 10 | 33 | 8 |
| Last Updated | 4d ago | 2d ago | 108d ago |
| Age | 1m | 2m | 3m |
Health Breakdown
udb
Maintenance
14
Quality
11
Community
6
Popularity
3
Documentation
15
reddb-io-client-connector
Maintenance
16
Quality
17
Community
11
Popularity
4
Documentation
11
hermes-broker-macros
Maintenance
19
Quality
14
Community
9
Popularity
3
Documentation
13
Technical Details
| udb | reddb-io-client-connector | hermes-broker-macros | |
|---|---|---|---|
| Version | 0.4.0 | 1.23.1 | 0.4.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | BUSL-1.1 | MIT OR Apache-2.0 |
| Dependencies | 95 | 3 | 3 |
| Crate Size | 3.4MB | 14KB | 5KB |
| Features | 34 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.85 | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •reddb-io-client-connector leads with a health score of 59/100, but none of the options score above 80.
- •udb, hermes-broker-macros are pre-1.0 — API may change.