Signet vs Stubborn Contract
| Signet | Stubborn Contract | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | — |
| Contract formats | OpenAPI, Pact | YAML, Groovy, Java, Kotlin |
| Consumer verification | Yes | Yes |
| Provider verification | Yes | Yes |
| Contract registry | Yes | Yes |
| Self-hosted deployment | Yes | Yes |
| Free plan | — | Yes |
Both are listed in Best Contract Testing Tools. On Samsung Mobile US Press, Stubborn Contract scores higher on our published basis.