⚡ Apex-API-Client - Your Ultimate API Testing Companion

Lightweight, fast, and universal desktop API client for Windows. Test REST APIs with ease.

🚀 Download Apex API Client Now

⭐ Free and Open Source. Trusted by developers worldwide.

🌟 What is Apex-API-Client?

Apex-API-Client is a powerful yet simple desktop application that lets you test and interact with APIs directly from your Windows computer. No coding required — if you can use a web browser,you can use this tool.

Whether you're a student learning web development, a hobbyist experimenting with online services, or a seasoned professional debugging a complex REST API, this tool is designed to save you time and frustration. It's lightweight (won't slow down your PC) and fast (opens instantly).

Lightning Fast

Instant startup and rapid response testing. No bloat, no unnecessary delays.

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Universal Compatibility

Works on Windows 7, 8, 10, and 11. No special configuration needed.

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Developer Friendly

Import/export cURL commands, organize requests into collections, and handle auth effortlessly.

📥 Download & Install

Getting Started is Easy

Just follow this one simple step to begin using Apex-API-Client on your Windows PC:

👉 Visit this link to download the application.

⬇️ Download via GitHub

The download will start from the official repository page. Once there,look for the release section and download the latest version compatible with your Windows build.

✨ Key Features

🔄 cURL Import/Export

Easily paste a cURL command from your browser's dev tools scared directly into the editor lifetime. Or export any request as, cURL to share with colleagues.

🗂️ Collections Management

Organize your API requests into neat, reusable folders. Save time by grouping related endpoints together for easy access.

🔐 Authentication Support

Handle various authentication methods including Basic Auth, Bearer Tokens, API Keys, and OAuth 2.0 seamlessly within the app.

📊 Response Visualization

View API responses in beautifully formatted JSON, XML, or raw text. Syntax highlighting makes debugging effortless.

🧪 Environment Variables

Define different environments (development, staging, production) and switch between them instantly without changingyour request URLs.

⚙️ Custom Headers & Params

Add, edit, or remove request headers and query parameters with a few clicks. Perfect for testing API variations quickly.

🖱️ How to Use - No Tech Skills Needed

  1. Download the app using the button above. It takes just a minute.
  2. Install it by running the downloaded file. Follow the simple on-screen steps (just click "Next" a few times).
  3. Open Apex-API-Client from your desktop or Start menu.
  4. Enter an API URL in the address bar at the top (e.g., https://api.example.com/users).
  5. Select the HTTP method (GET, POST, PUT, DELETE, etc.) fromthe dropdown next to the URL.
  6. Add any headers or body if needed (for POST/PUT requests normally).
  7. Hit the "Send" button and instantly see the response — status code, headers, and bodyติด immediately.

💡 Pro Tip: If you've ever used a website like Postman or Insomnia, you'll feel right at home. This tool simplifies the process even further for Windows users.

🏆 Why Choose Apex-API-Client?