REST API Request Builder

No. This tool is a code generator only. It builds syntactically correct curl, fetch, and axios snippets based on your inputs — nothing is sent to any server. Copy the generated code and run it in your terminal or application.

Add an Authorization header with your token value (e.g. 'Bearer your-token-here' for JWT/OAuth2, or 'Basic base64(user:pass)' for Basic auth). For API keys, common header names include X-API-Key, x-api-key, or the service-specific header like x-auth-token.

For JSON APIs (most REST APIs), set Content-Type: application/json and provide a JSON object as the body. For form submissions, use Content-Type: application/x-www-form-urlencoded with key=value&key2=value2 format. The tool generates the correct curl -d and fetch body handling for both.

PUT replaces the entire resource — you must send all fields, even unchanged ones. PATCH applies a partial update — send only the fields you want to change. Use PATCH for efficiency when updating a few fields of a large resource. Most REST APIs support both, but prefer PATCH for partial updates.

For file uploads, set the method to POST and use Content-Type: multipart/form-data. The generated curl snippet will use -F 'file=@/path/to/file' syntax. For fetch, use a FormData object: const fd = new FormData(); fd.append('file', fileInput.files[0]); fetch(url, { method: 'POST', body: fd }).