API Request Builder

Build, send, and inspect HTTP API requests — with full response details including status, headers, body, and timing

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Request

Options

Response

Configure your request on the left and click Send Request

What Is an API Request Builder?

An API request builder lets you construct and send HTTP requests to test REST, GraphQL, or any HTTP-based API directly from your browser. Unlike the cURL Builder which generates curl commands, this tool actually sends the request through our server and displays the live response — including status code, response headers, body content, and timing information.

This is ideal for quickly testing API endpoints during development, debugging webhooks, verifying authentication, inspecting response formats, and troubleshooting integration issues — all without leaving your browser or installing any software.

How to Use

  1. Select the HTTP method — Choose from GET, POST, PUT, PATCH, DELETE, HEAD, or OPTIONS.
  2. Enter the URL — Paste the full API endpoint URL including the protocol (https://).
  3. Add query parameters — Key-value pairs appended to the URL for filtering and pagination.
  4. Set headers — Add custom headers like Accept, Authorization, or custom API keys.
  5. Provide a body — For POST, PUT, and PATCH methods, enter the request body and select the Content-Type.
  6. Configure authentication — Choose Basic Auth or Bearer Token for protected endpoints.
  7. Click Send Request — The request is proxied through our server and the full response is displayed.

FAQs

How does the request proxy work?

When you click "Send Request," the request details are sent to our server which forwards the request to the target API. The response is then sent back to your browser. This avoids CORS restrictions that would block direct browser requests to most APIs.

Are my API keys and tokens safe?

Your request, including any authentication headers, is sent to our server to be proxied. We do not log or store any request data. However, for production secrets, consider using a local tool like cURL Builder to generate commands you run locally.

What is the timeout limit?

The request timeout is 30 seconds. If the target server does not respond within that time, the request will fail with a timeout error.

Can I test localhost or private APIs?

No. The proxy server cannot reach localhost, 127.0.0.1, or private network addresses for security reasons. Use this tool for public or development APIs only.