How to use Test REST API Online
- Give Test REST API Online the URL and any method, headers or body to work with.
- Trigger Test REST API Online and it sends the request from your browser, not from this site.
- Review the result, which Test REST API Online fetches live from the API you entered.
About this tool
Test REST API Online is a static, browser-based client. Test REST API Online sends HTTP requests from your browser to the API endpoint you enter and shows the status, headers and body of the response.
Because the call is made by your browser, it follows the same CORS rules as any web page, so some cross-origin APIs may refuse to respond. The request is sent from your browser straight to the API you name; this site has no backend and never receives it, though that server and your network can see it. Cross-origin calls follow the browser's CORS rules, and a connection is required.
Frequently asked questions
How do I use Test REST API Online?
Test REST API Online sends the HTTP request you configure from your browser to the API you specify and shows the response status, headers and body.
Does Test REST API Online cost anything?
No — Test REST API Online is completely free, with no sign-up and no hidden limits.
Does Test REST API Online send my request anywhere?
Yes — Test REST API Online sends the request from your browser directly to the URL you enter. This site has no backend and never receives it, but the target server and your network do, and cross-origin calls follow browser CORS rules.
Can Test REST API Online call any API from the browser?
Test REST API Online can call any endpoint your browser is allowed to reach, but cross-origin APIs must send permissive CORS headers or the browser will block the response — that is a browser rule, not a limit of Test REST API Online.