API Challenges Blog
Short posts about REST APIs, API testing practice, interactive tutorials, tools, and updates to API Challenges.
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API Spector Review: Best New API Client for API Testing
Review API Spector as a modern API client for exploratory API testing, OpenAPI contract checks, fuzzing, and local Git-friendly workflows.
Categories: Tools, API Testing, API Client Reviews
Interactive API Simulator Walkthrough Launch
Introducing the interactive API simulator walkthrough for practising safe API requests and comparing request methods.
Categories: API Testing, API Simulator
Interactive REST API Tutorial and Raw Response View
Learn why the REST API tutorial and raw response viewer help beginners understand REST APIs by sending requests and inspecting complete responses.
Categories: Change Log, REST API Tutorial, API Testing
API Challenges Site Refresh and Hosted API Clients
A fuller explanation of the API Challenges site refresh, progress tracking improvements, hosted API clients, and tester OpenAPI tools.
Categories: Change Log, API Testing, Tools
PATCH Support for API Challenges and Simple API
Learn what PATCH support adds to API Challenges and Simple API, including partial JSON, JSON Merge Patch, and JSON Patch styles.
Categories: Change Log, HTTP Methods, API Testing
QUERY Method Support and Versioned OpenAPI Docs
A practical explanation of QUERY method support, versioned OpenAPI files, permissive specs, and downloadable API documentation.
Categories: Change Log, OpenAPI, HTTP Methods
curl.exe Support and API From Hell Practice Mode
Learn why the curl.exe option helps Windows users and how API From Hell challenges REST clients with difficult responses.
Categories: Change Log, Tools, API Testing
Expanded Status Codes and Inline API Clients Update
A guide to the status code, inline client, Swagger UI, and navigation changes added to API Challenges in July 2026.
Categories: Change Log, HTTP Status Codes, API Testing
API Challenges Repo Move and Swagger UI Updates
Learn why the API Challenges GitHub repo move, inline simulator widgets, and Swagger UI pages improve API testing practice.
Categories: Change Log, OpenAPI, API Testing
Desktop API Client Reviews for API Testing Tools
A guide to the heavyweight desktop REST client reviews added for Postman, Katalon, SoapUI, and Insomnia.
Categories: Change Log, Tools, API Testing
Lightweight API Client Reviews and Tool Choices
Learn why the lightweight REST client reviews help testers compare Httpie, Kreya, Milkman, Yaak, and summary review criteria.
Categories: Change Log, Tools, API Testing
Expanded API Clients Page for Tool Selection
Learn how the expanded API clients page helps testers find REST clients, compare options, and discover open source tools.
Categories: Change Log, Tools
Bruno API Client Demo for Exploratory API Testing
Watch and read about the Bruno API client demo, with practical notes for exploratory REST API testing and local collections.
Categories: Change Log, Tools, API Testing
Simple API Overview with Bruno and cURL Guides
Learn how the Simple API overview, Bruno page, and cURL page help beginners practise REST API requests without authentication.
Categories: Change Log, Simple API, Tools
Toolshop Practice API for Testing Workflows Guide
Learn why the Toolshop practice site was added and how a combined UI and API can support realistic API testing exercises.
Categories: Change Log, Practice Sites, API Testing