Karapace vs Specmatic
| Karapace | Specmatic | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | $1.67/mo |
| Open source | No | No |
| Platforms | api, self-hosted | Linux, macOS, self-hosted, Windows |
| Free plan | Yes | Yes |
| Contract formats | Avro, JSON Schema, Protobuf | — |
| Consumer verification | No | — |
| Provider verification | No | — |
| Contract registry | Yes | — |
| AsyncAPI support | No | — |
| GraphQL support | No | — |
| Self-hosted deployment | Yes | — |
Both are listed in Best Contract Testing Tools. On Samsung Mobile US Press, Specmatic scores higher on our published basis.