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API Request Builder – Compose HTTP Requests & Snippets

Create cURL, Fetch, Axios, or Postman-ready requests with headers, auth, payloads, and query params for REST or GraphQL APIs.

🟢 Runs locally · no uploads

API Request Builder

Build and test HTTP requests

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› About this tool · FAQ

Build and generate API requests in multiple formats. Support for cURL, JavaScript Fetch, Axios, and Postman collections with authentication and custom headers.

What authentication methods are supported?

Supports Bearer tokens, Basic authentication, API keys, and custom header authentication. You can specify auth details in the auth section of your input.

Can I generate code for different programming languages?

Currently supports JavaScript (Fetch, Axios), cURL commands, and Postman collections. More language support may be added in future updates.

How do I handle query parameters?

Include query parameters directly in the URL (e.g., https://api.example.com/users?page=1&limit=10) and they will be properly formatted in the generated code.

Can it handle file uploads and form data?

Currently optimized for JSON requests. For file uploads and multipart forms, use the generated code as a starting point and modify the body and Content-Type header manually.

How do I test the generated requests?

Copy the generated cURL command to test in terminal, or use the JavaScript code in browser console or Node.js. Postman collections can be imported directly.