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SPECIFICTION
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Pact vs REST Assured

Pact

pact.io

REST Assured

rest-assured.io

Side by side

FigurePactREST Assured
Price from$115.42/moFree
Free planYesYes
Free trialYes—
Open source——
WindowsYes—
macOSYes—
LinuxYes—
APIYesYes
Self-hostedYes—
Plans published51
Spec score · API Testing Tools8.8 (#6)7.4 (#28)
PurposePact is a code-first tool for testing HTTP and message integrations with contract tests.REST Assured is a Java DSL for simplifying tests of REST based services.
SupportPact's official site directs users to documentation, a Slack channel and partner support; PactFlow plans list email support for Team and dedicated account and customer care for Enterprise.The repository directs users to a Google Groups mailing list for questions and support.

Plans

Pact

  • PactFlow StarterFree
  • Pact open-source toolingFree
  • PactFlow Team (yearly)$115.42 a month
  • PactFlow Team (monthly)$127 a month
  • PactFlow EnterprisePriced on request

Pact pricing →

REST Assured

  • REST AssuredFree

REST Assured pricing →

In their own words

Pact

Pact is a free, code-first tool for testing HTTP and message integrations with contract tests. Automated consumer tests create contracts describing concrete interactions between consumer and provider applications. Teams can then test each side in isolation against that shared contract, without deploying the entire system. Pact implementations are available for more than 10 languages, including JavaScript, Java, .NET, Go, Python, Ruby, Swift and Objective-C, Scala, Rust, PHP, and C++. Its CLI includes mock and stub servers, a provider verifier, a broker client, and a plugin CLI. The open-source Pact Broker shares contracts and verification results; teams can host and administer it themselves, and use its CI/CD workflows to check whether application versions can be deployed together. The verifier supports HTTP and asynchronous and synchronous messages, while plugins include gRPC, Avro, and CSV support. Documentation includes recipes for tools and scenarios such as GraphQL, Cypress, Kafka, and AWS Lambda. Pact is most useful when teams control both consumer and provider development. The free Broker is self-hosted, leaving its security, maintenance, and upgrades to its operator.

Visit pact.io

REST Assured

REST Assured has no write-up on Specifiction yet; its figures are above.

Visit rest-assured.io