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Pact Foundation

The cross-language distributed contract testing framework.
README.md

Pact

Pact is the de-facto API contract testing tool. Replace expensive and brittle end-to-end integration tests with fast, reliable and easy to debug unit tests.
  • ⚡ Lightning fast
  • 🎈 Effortless full-stack integration testing - from the front-end to the back-end
  • 🔌 Supports HTTP/REST and event-driven systems
  • 🛠️ Configurable mock server
  • 😌 Powerful matching rules prevents brittle tests
  • 🤝 Integrates with Pact Broker / PactFlow for powerful CI/CD workflows
  • 🔡 Supports 12+ languages

Why use Pact? Contract testing with Pact lets you:

  • ⚡ Test locally
  • 🚀 Deploy faster
  • ⬇️ Reduce the lead time for change
  • 💰 Reduce the cost of API integration testing
  • 💥 Prevent breaking changes
  • 🔎 Understand your system usage
  • 📃 Document your APIs for free
  • 🗄 Remove the need for complex data fixtures
  • 🤷‍♂️ Reduce the reliance on complex test environments

Watch our series on the problems with end-to-end integrated tests, and how contract testing can help.

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  1. roadmap Public

    Developer Relations @ Pact - Your map to the Pact landscape for all-comers (maintainers, contributors, users, newbies)

    42 7

  2. pact-specification Public

    Describes the pact format and verification specifications

    301 29

  3. pact-reference Public

    Reference implementations for the pact specifications

    Rust 95 48

  4. pact_broker Public

    Enables your consumer driven contracts workflow

    Ruby 717 181

  5. pact-core-mock-server Public

    In-process mock server for matching HTTP requests and generating responses from a pact file

    Rust 5 2

  6. pact-js Public

    JS version of Pact. Pact is a contract testing framework for HTTP APIs and non-HTTP asynchronous messaging systems.

    TypeScript 1.7k 354

Repositories

Showing 10 of 82 repositories
  • pact-js Public

    JS version of Pact. Pact is a contract testing framework for HTTP APIs and non-HTTP asynchronous messaging systems.

    TypeScript 1,679 354 96 (13 issues need help) 4 Updated Apr 30, 2025
  • pact-broker-chart Public

    This repository houses the Pact Broker Helm Chart

    Smarty 12 MIT 21 1 2 Updated Apr 30, 2025
  • pact.io Public

    Pact Foundation Website

    HTML 218 92 12 (1 issue needs help) 2 Updated Apr 30, 2025
  • pact_broker Public

    Enables your consumer driven contracts workflow

    Ruby 717 MIT 181 95 (1 issue needs help) 13 Updated Apr 30, 2025
  • pact-python Public

    Python version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.

    Python 603 MIT 142 41 (1 issue needs help) 4 Updated Apr 30, 2025
  • jest-pact Public

    A Pact adaptor for to allow you to easily run tests with Jest

    TypeScript 81 MIT 12 4 10 Updated Apr 28, 2025
  • pact-consumer-minitest Public

    Minitest support for the Pact Consumer gem

    Ruby 4 MIT 3 1 2 Updated Apr 27, 2025
  • pact-event-bot Public
    TypeScript 2 MIT 1 1 19 Updated Apr 25, 2025
  • pact-5-minute-getting-started-guide Public template
    JavaScript 13 482 1 9 Updated Apr 25, 2025
  • pact_broker-serverless Public

    Pact Broker running in AWS Lambda with Serverless

    Shell 10 MIT 3 2 8 Updated Apr 24, 2025
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