| Price from | — | $25/mo |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 5 |
| Spec score · Database Proxy Software | 7.4 (#20) | 8.5 (#4) |
| Availability | It lists high availability for MySQL backends and allows backend databases to be set online or offline dynamically. | The README describes cluster behavior that can restart tenant pools when clients reconnect after a node goes down. |
| Installation | The documented installation uses Go, a source clone, make, a configuration file, and running the built binary. | The installation guide starts by setting up a PostgreSQL database for Supavisor tenant data and provides a Docker Compose command for PostgreSQL 14. |
| Purpose | kingshard is a Go-powered MySQL proxy that routes read and write SQL and aims to simplify MySQL sharding. | Supavisor is a scalable, cloud-native Postgres connection pooler. |