Skip to main content

Challenge Solutions
How to learn APIs
Reference:
Practice Modes
Tools
- REST/HTTP Clients
  - Summary Reviews
  - Detailed Reviews:
    - Bruno
    - cURL
    - Httpie
    - Insomnia
    - Katalon
    - Kreya
    - Milkman
    - Postman
    - SoapUI
    - Yaak
- Proxies
Practice Sites
- Simulators
- Basic GET
  - Random User
  - Swapi
- Basic
  - Dummy JSON
- Full
  - Simple API
- Apps
Sponsors
Change Log

You can support this site from as little as $1 a month on Patreon.

The support pays for site hosting and the expansion of this content.

In addition, Patreon Supporters gain access to exclusive online video training courses and ebooks.

Buggy API OpenAPI Files

Download an OpenAPI JSON file to use in your REST Client.

The default openapi.json endpoint currently returns OpenAPI v 3.1.

OpenAPI v 3.0 JSON standard validation download - less validation download
OpenAPI v 3.1 JSON standard validation download - less validation download
OpenAPI v 3.2 JSON standard validation download - less validation download

The API is intentionally buggy by default. Start the app with -shopbugs=none when you want the clean business rules for comparison.