send API Request Builder
Build and send HTTP requests, then inspect the full response. Requests are proxied through our server to avoid CORS issues.
Build a request on the left and hit Send to see the response here.
This tool lets you build and send HTTP requests (GET, POST, PUT, DELETE, etc.) with custom headers, query parameters, and a request body, then inspect the full response - similar to lightweight Postman-style testing directly in your browser. It's useful for quickly testing an API endpoint without installing separate software.
Frequently asked questions
You can add custom headers (including Authorization headers for tokens/API keys) to your request, so most authenticated APIs can be tested as long as you have valid credentials to include.
Since requests are sent directly from your browser, APIs that don't allow cross-origin requests (no permissive CORS headers) may block the request - this is a restriction of the target API/browser security model, not something this tool controls.
Typically the response status code, headers, and body - letting you fully inspect what an endpoint actually returned, not just whether it succeeded.