A browser-based REST client for composing and sending HTTP requests. Useful for quick API exploration, debugging responses, and testing endpoints without leaving the browser.

Accepted input

Supports GET, POST, PUT, PATCH, and DELETE. URLs, headers, query params, auth, and raw request bodies are editable in-place, and {{VARIABLE}} placeholders can be resolved from the active environment.

How to use

Enter a URL and choose an HTTP method.
Add headers, query params, auth, or a raw request body as needed.
Use ENV chips to insert shared environment placeholders directly into the URL or headers.
Press Cmd/Ctrl + Enter to send and inspect the response body, headers, status, and timing.

Tips

Paste a curl command into the import area to prefill the request builder.
Copy a share link to open the same request state in another browser without sending data to KalpLabs.

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About

A browser-based REST client for composing and sending HTTP requests. Useful for quick API exploration, debugging responses, and testing endpoints without leaving the browser.

Accepted input

Supports GET, POST, PUT, PATCH, and DELETE. URLs, headers, query params, auth, and raw request bodies are editable in-place, and {{VARIABLE}} placeholders can be resolved from the active environment.

How to use

Enter a URL and choose an HTTP method.
Add headers, query params, auth, or a raw request body as needed.
Use ENV chips to insert shared environment placeholders directly into the URL or headers.
Press Cmd/Ctrl + Enter to send and inspect the response body, headers, status, and timing.

Tips

Paste a curl command into the import area to prefill the request builder.
Copy a share link to open the same request state in another browser without sending data to KalpLabs.