Generate API Test Cases using AI
Auto-Generate Test Cases
Improve Testing Coverage
LLM-Powered Testing
Trusted by 300,000+ developers from Fortune 500 companies.
Automatically write API tests - directly inside your API Client.
Let AI instantly generate clean, reliable test cases for any API response, right inside your existing Requestly workflow.
Turn any API request into ready-to-run tests
⚡ Faster debugging
🤖 Smarter test coverage
💬 Natural language instructions
🎯 Always stays in-context
Tests you can generate
Status code checks
Verify exact status codes or status categories (2xx, 4xx, 5xx) with precise, readable assertions. Ensure your API behaves correctly under both success and error scenarios.
JSON validity & structure
Automatically confirm that the response contains valid JSON. Catch malformed responses before they break client-side logic.
Schema validation (AJV)
Validate entire JSON structures using auto-generated AJV schemas. Guarantee consistent API contracts across every environment.
Field-level assertions
Assert existence and correctness of specific fields in the response. Perfect for validating key data like id, email, status, and nested objects.
Header assertions
Check presence and accuracy of essential headers like Content-Type or Authorization. Ensure your API communicates the right metadata every time.
Array and list validations
Confirm array lengths, ensure items match expected types, and validate list contents. Ideal for endpoints returning collections, lists, or paginated data.
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Developers around the world trust us to simplify debugging, speed up workflows, and make development more efficient.
Modifying requests and/or responses is the killer feature area for me. Redirect JS in prod, generate mocks, modify headers, map local, map remote, SessionReplay, Load a local JS bundle, override scripts, etc. etc. etc. - TOTALLY worth it and very useful.
Requestly is an incredibly useful tool for developers working on a large team with multiple staging envs, or numerous app endpoints for various APIs in a local environment. The Sessions feature is especially useful for documenting solutions or sharing with others since it captures the relevant network traffic, and screen recording enables others to easily reproduce. Requestly combines all the power of complicated tools like Charles Proxy and Postman in one app/chrome extension. I highly recommend giving it a try if you haven't already–it will make your dev work so much easier. (Summarized)
Just loved the way Requestly saved several person hours for our dev team by allowing us to redirect and intercept requests. The simple yet efficient rules allowed us to seamlessly redirect requests from a single staging front-end server to local backend servers. This meant that our devs didn't need to build or run the front-end server locally when focusing on backend tasks.
Requestly is an amazing tool to get your development work less hassle. The product itself has evolved so much since day-1 and the company is really serious on helping their customer solves their problems. We had this nice session where they shared Requestly features and we were very impressed on its potential. A truly 5-star worthy.
Requestly is user-friendly, brilliant and easy-to-use. I use it on an daily basis and it makes my work easier. After using other tools like Charles - Requestly is a nice new breath of air that I highly vouch for. Apart from the tool being amazing - the support from the Requestly team is phenomenal with them always going above and beyond for their clients.
App works as expected! Ran into some small issues while creating the rules but the support team was able to help and overcome those.
Awesome tool. I use it almost daily for my projects to modify request body, headers, etc. Would recommend it to every frontend developer out there. Thank me later 🙂 (Case Study)
I'm a big fan of Requestly, and use it on a daily basis as a QA Engineer. It removes the need to use Charles Proxy often, which is always nice. I can just use Requestly directly in Chrome
Requestly not just made it easier for us to develop, test & debug our code on our customer sites but also helped us do engaging product demos to our prospective clients.
