Pact command line tools | Pact Docs

There are Pact implementations written in more than 10 languages (see the sidebar of this page for a full list). The Pact tests for the consumer side of an integration are usually written in the same language as the consumer itself, as they typically run as part of the consumer's unit test suite. On the provider side, the verification tests can be run using either the Pact verifications API for that language, or by running the Pact provider verifier CLI (see below). Under the hood, many of the languages use the CLI themselves, and wrap native language syntax sugar around some of the features.