Dredd is a language-agnostic command-line tool for validating API description document against backend implementation of the API.

• Documentation
• Changelog
• Contributor's Guidelines

Dredd reads your API description and step by step validates whether your API implementation replies with responses as they are described in the documentation.

• API Blueprint
• Swagger

Dredd supports writing hooks — a glue code for each test setup and teardown. Following languages are supported:

• Go
• Node.js (JavaScript)
• Perl
• PHP
• Python
• Ruby
• Rust
• Didn't find your favorite language? Add a new one!

• Linux, macOS, Windows, ...
• Travis CI, CircleCI, Jenkins, AppVeyor, ...

$ npm install -g dredd

1. Create an API Blueprint file called api-description.apib. Follow tutorial at API Blueprint website or just take one of the ready-made examples.

2. Run interactive configuration:

   $ dredd init

3. Run Dredd:

   $ dredd

4. To see how to use all Dredd's features, browse the full documentation.

• Writing and testing API specifications with API Blueprint, Dredd and Apiary 12/04/2017
• Testing an API Against its Documentation 11/23/2017
• Keeping Documentation Honest 11/21/2017
• Apiary designed APIs tested using Dredd 09/20/2017
• Dredd + Swagger for REST API testing 01/24/2017
• Testing Your API Documentation With Dredd 08/08/2016
• DREDD API Tester works with API Blueprints 07/05/2016
• Documentation driven API Development using Laravel, Dredd and Apiary 06/21/2016
• Dredd v1.1.0: A Bit Different 06/20/2016
• Dredd: Do Your HTTP API Justice 01/28/2015