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🌐 API Request Builder

Build and preview API requests with custom headers and body (mock-only, no actual requests sent)

Understanding API Requests

HTTP Methods Explained

HTTP methods (also called verbs) define the action to perform. GET retrieves data, POST creates new resources, PUT updates entire resources, PATCH updates partial resources, and DELETE removes resources. Choose the appropriate method based on your API operation.

Headers and Authentication

Headers provide metadata about the request. Common headers include Content-Type (specifies data format like JSON), Authorization (contains authentication tokens), and Accept (specifies expected response format). Proper headers are essential for API communication.

Using cURL Commands

cURL is a command-line tool available on most systems for making HTTP requests. The commands generated by this tool can be run in your terminal, integrated into scripts, or used in tools like Postman. They're perfect for testing and debugging APIs.

How to Use This Tool

  1. Select the HTTP method (GET, POST, PUT, DELETE, PATCH) appropriate for your API operation
  2. Enter your API endpoint URL in the input field
  3. Add custom headers as JSON in the Headers field, including Content-Type and Authorization if needed
  4. For POST, PUT, or PATCH requests, add your request body as JSON
  5. Click "Build Request Preview" to generate a cURL command that you can copy and test in your terminal or API client

Frequently Asked Questions

Does this tool make actual API requests?

No, this is a mock-only tool. It generates cURL commands for you to test but does not make actual HTTP requests. This ensures your API keys and sensitive data remain secure.

What is a cURL command?

cURL is a command-line tool for making HTTP requests. Our tool generates cURL commands that you can copy and run in your terminal or command prompt to test your API requests.

Can I test authenticated API requests?

Yes, you can add Authorization headers with Bearer tokens or API keys in the Headers field. The generated cURL command will include these headers for testing.

Is this tool free to use?

Yes, this API request builder is completely free to use with no limitations or registration required.

Does this work on mobile devices?

Yes, this tool is fully responsive and works on all mobile devices, tablets, and desktop computers.