API Request Tester

A small API client you can open in a tab

You often need to call an endpoint once to see what comes back: check an authentication header, read an error body or confirm a redirect. A full desktop client is more than you need. This tool covers the common cases.

Build a request

1. Method and URL. Pick GET, POST, PUT, PATCH, DELETE, HEAD or OPTIONS and paste the address.
2. Params. Add query parameters as rows and switch them on or off. They are merged into the URL for you.
3. Headers. Add Accept, custom API keys or anything else. Content-Type is set for you based on the body type, unless you set it.
4. Body. Choose JSON (with a Format button), form fields or a raw body with its own content type. GET and HEAD are sent without a body.
5. Auth. Bearer adds an Authorization header with your token. Basic encodes a username and password.

Reading the response

You see the status code and text, time to the final response, size, redirects followed and the headers. JSON is pretty-printed; other text is shown as received; binary data is described rather than shown. Copy the body in one click.

Export and history

The Copy as cURL button gives you the exact command for the terminal or a bug report. Your last 25 requests are kept in this browser so you can click one to load it again. Tokens and passwords are never put in the history.

Safety limits

Requests are sent from our server, so only public internet addresses work, and each hop of a redirect is checked. Calls are limited by size, time and rate to keep the service fair. Do not test with real production credentials.