HTTP request builder
Build and send GET, POST, PUT, PATCH, and DELETE requests with query parameters, path parameters, headers, and request bodies.
Kapi
API Tester
A clean, lightweight Windows desktop tool to test HTTP API endpoints — build requests, manage authentication, save presets, and export styled HTML reports.
Store and direct-download links will be added when distribution is available.
About this app
Kapi is a Windows desktop API testing tool developed by Mohamed Khallaf (A1 Systems).\n\nBuild and send HTTP requests, manage authentication, capture tokens for protected endpoints, save reusable presets, restore drafts automatically, inspect wire-level traces, copy requests as cURL, and export styled HTML reports. Kapi works locally and does not require an account or collect personal data.
Problem solved
API testing often means switching between several tools, rebuilding authentication headers, and losing request details between sessions. Kapi keeps the request builder, authentication flow, trace, and response review in one focused workspace.
Value proposition
A focused, local-first Windows tool that makes repeatable API testing faster while keeping saved drafts and presets on the user device.
Getting started
Enter a base URL, choose the request method, add the endpoint path, configure authentication if needed, and press Send. Save the request as a preset when you want to reuse it.
How to use
Choose an HTTP method, enter the base URL and endpoint, add query parameters, headers, authentication, and a request body, then send the request and inspect the response. Token endpoints can capture a token for later protected requests.
Use cases
REST API development, authentication flow testing, QA verification, troubleshooting request headers and payloads, and preparing reproducible cURL examples.
Target audience
Developers, QA engineers, API integrators, technical support teams, and anyone who needs a practical Windows API testing workspace.
Key features
Authentication options
Use Basic Authentication, Bearer tokens, or API keys in request headers or query parameters.
cURL export
Inspect the wire-level request and copy it as a cURL command for troubleshooting or documentation.
Guided token flow
Capture a token from a token endpoint and inject it automatically into protected endpoint requests.
Presets and drafts
Save reusable request presets and automatically restore the last draft between sessions.
HTML report export
Export a styled HTML report containing the request, response, headers, and timing details.
Frequently asked questions
Which platforms does Kapi support?
Kapi runs on Windows.
What is the current version of Kapi?
The current release is version 1.0.1.
Where can I download Kapi?
There is no public store listing for this application yet. Contact us and we will tell you when one is published.
What data does Kapi collect?
The full declaration is in the privacy policy for this application, published at /apps/kapi/privacy/. It lists every data category collected, why it is collected, and whether it is shared.
How do I get support for Kapi?
The support page is at /apps/kapi/support/, and you can email m5552555@gmail.com directly.
Is Kapi available in Arabic?
Yes. The application and its listing are available in Arabic and English.