* [Pact v2.0.2](https://github.com/pact-foundation/pact-ruby) – Enables consumer driven contract testing by mocking service providers and verifying interactions with expected HTTP requests and responses. * [Mockzilla v2.8.11](https://github.com/mockzilla/mockzilla) – OpenAPI-based mock server that generates realistic responses, validates requests, simulates latency and errors, and proxies with automatic mock fallback.