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API Client

A lightweight and secure API Client for faster API Development & Testing

HTTP Interceptor

A Powerful HTTP Interceptor to Intercept, Record, Debug & Modify HTTP Requests

API Mocking

Build frontend faster without waiting for backend.

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Frontend Web/Mobile Developers

Requestly improves front-end workflows with local JS testing, mocking, and SessionBook debugging.

For QA engineers

QA engineers love Requestly for its features and ease of use, allowing easy edge case testing.

Support Engineer

Support engineers value Requestly for debugging, demoing, and overriding GTM and Adobe scripts.

Backend Developers

Requestly helps in improving back-end development workflows, by enabling testing.

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Blog

Requestly blog

Explore easy to follow tutorials, real-world case studies, and behind the scenes insights into the features we build and the developers who bring them to life.

Requestly security and compliance

Requestly Launches AI Test Authoring for API Test Scripts

Requestly introduces AI Test Authoring, allowing developers to automatically generate and refine API test scripts for faster, smarter testing.
Sagar Soni
January 22, 2026

Featured posts

Top Builds from PEC Hacks 3.0: MetalliSense Takes the Requestly Prize
Requestly hackathon sponsorship highlights PEC Hacks 3.0, where Team MetalliSense won by building a distributed AI system using Requestly for testing and validation.
Akanksha Bhadauria
January 19, 2026
Endpoint ft. Kushagra Gour: A Builder’s Philosophy on Craft and Empathy
Endpoint by Requestly is a new series spotlighting software leaders who don’t just follow trends but define them, sharing real-world insights and hard-earned lessons that shape the future of technology.
Kanishk Rawat
November 3, 2025
AB Tasty scales testing and demos with Requestly
AB Tasty accelerates testing and demos with Requestly—switching environments, injecting scripts, and personalizing sites in seconds.
Akanksha Bhadauria
October 16, 2025

All posts

Endpoint ft. Ijeoma Okereafor: On the human element of testing and ecosystem quality
Endpoint by Requestly spotlights tech leaders who don’t follow trends but define them, sharing real-world insights shaping the future of software.
Kanishk Rawat
February 25, 2026
How to Write Scripts to Validate API Response Data

When you’re building or debugging a frontend, the real problems usually don’t show up until the API response hits the browser. Everything may look fine in i…

Kanishk Rawat
February 24, 2026
10 Practical Script Examples for API Testing
10 practical script examples for API testing covering validation, authentication, chaining requests, negative testing, and business logic checks with real-world scenarios.
Kanishk Rawat
February 24, 2026
What is cURL? Complete Guide to cURL Commands, Options & API Testing

cURL is one of those tools that every developer encounters at some point in their career. Whether you’re testing APIs, debugging network issues, or automati…

Kanishk Rawat
February 12, 2026
How to convert OpenAPI spec to an API collection
Instantly convert your OpenAPI (Swagger) spec into a ready-to-test API collection in Requestly. Import, organize, and explore your APIs with zero manual setup.
Kanishk Rawat
February 11, 2026
Requestly Launches AI Test Authoring for API Test Scripts
Requestly introduces AI Test Authoring, allowing developers to automatically generate and refine API test scripts for faster, smarter testing.
Sagar Soni
January 22, 2026
Top Builds from PEC Hacks 3.0: MetalliSense Takes the Requestly Prize
Requestly hackathon sponsorship highlights PEC Hacks 3.0, where Team MetalliSense won by building a distributed AI system using Requestly for testing and validation.
Akanksha Bhadauria
January 19, 2026
Mocking APIs Locally: A Complete Guide to Client-Side HTTP Interception
Client-side HTTP interception lets you mock APIs directly in the browser—no servers or env hacks. Requestly keeps mocks realistic, reversible, and fast.
Yashwanth Sai
December 22, 2025
Testing in Production Made Safe: A Guide to HTTP Request Interception
Testing in production is already happening. HTTP request interception with Requestly makes it safe, controlled, and reversible—without touching real users.
Yashwanth Sai
December 22, 2025
🚀 React 19 in 2025 — What’s New, Why It Matters, and How to Migrate from React 18
Sonika
December 15, 2025
The Developer’s Swiss Army Knife: HTTP Interception, Mocking, and Testing in One Tool
A unified, lightweight tool that replaces API mocking, interception, and testing—cutting context switching so developers stay in flow and ship faster.
Sohail Saifi
December 11, 2025
Requestly: The All-in-One API Tester, Mocking, Traffic Interception & Debugging Tool for Developers
Why Requestly has become the go-to smarter debugging tool- API mocking, and traffic-rewriting tool for modern software developers. also learn how it saves hours, improves productivity, and simplifies frontend-backend integration.
Md. Hasan Monsur
December 11, 2025
The All-in-One Alternative to Charles Proxy + Postman for Modern Developers
All-in-one tool that replaces Charles Proxy and Postman with fast interception, API testing, mocking, and local-first debugging.
Sohail Saifi
December 11, 2025
The Rise of AI-Powered Frontend Development — Copilot / Cursor / Figma-to-Code MCP
Sonika
December 9, 2025
Everything you need to know about Managing Security during API Testing
Managing security during API testing is crucial. Learn the risks of cloud tools and why a local-first workflow like Requestly keeps your data safer.
Sayanta Banerjee
December 9, 2025
Running Ollama with Requestly – A guided tutorial
Run LLMs fully locally using Ollama and route API calls with Requestly no backend code needed. Get private, fast, cloud-like AI responses right from localhost.
Sayanta Banerjee
December 4, 2025
Why You Need a Local-First API Client (With Hands-On Example)
Local-first API clients boost speed, privacy, and offline reliability by keeping requests and data on your device—cutting hidden dependencies and reducing technical debt.
Anusha Kuppili
November 28, 2025
How MCP Impacts API: A Comprehensive Analysis
MCP standardizes how LLMs interact with tools and APIs, making predictability essential. This blog explains MCP, its impact on APIs, how developers use it, and where Requestly fits.
Sayanta Banerjee
November 27, 2025
how to use cursor to generate api testcases in requestly
How to use Cursor to Generate API Testcases in Requestly
API testing automation with Cursor and Requestly makes test creation faster, local-first, and far more reliable by generating and running endpoint tests without manual scripting.
Aniket Bhattacharyea
November 27, 2025
What is a Reverse Proxy and How Does It Work?
Learn more about how a reverse proxy boosts speed, security, and scalability by routing requests, blocking threats, and protecting your backend servers.
Kanishk Rawat
November 25, 2025
How to Use the if() Function in CSS
CSS’s new if() function adds conditional logic directly to styles, letting you change values based on media queries, variables, or feature support no JavaScript needed.
Dinesh Thakur
November 21, 2025
Learn about Accept-Encoding in HTTP Requests
Learn what Accept-Encoding means, how it works, and why it improves website performance and load times
Team
November 18, 2025
How Lodash Can Simplify Your API Testing
Learn how to enhance your API testing in Requestly by importing Lodash and other libraries for effective data transformation and manipulation.
Kanishk Rawat
November 17, 2025
Announcing No-Bug November: Get Paid to Squash Bugs & Land a 2026 Internship!
Join No-Bug November — a month-long bug bash to make Requestly faster and more stable. Fix bugs, earn bounties, win swags, and even land internships!
Akanksha Bhadauria
November 10, 2025
That’s a Wrap on Hacktoberfest 2025: Our Success Story
Requestly’s first Hacktoberfest was a huge success! 🎉 15 new contributors, 28 total contributions, and an incredible mix of code & no-code creativity.
Akanksha Bhadauria
November 5, 2025
Endpoint ft. Kushagra Gour: A Builder’s Philosophy on Craft and Empathy
Endpoint by Requestly is a new series spotlighting software leaders who don’t just follow trends but define them, sharing real-world insights and hard-earned lessons that shape the future of technology.
Kanishk Rawat
November 3, 2025
Data-Driven API Testing with Requestly: Run Tests from CSV/JSON Files
Simplify API automation with Requestly’s Collection Runner. Run data-driven API tests using CSV or JSON files, inject dynamic variables, and analyze results effortlessly.
Kanishk Rawat
October 29, 2025
Serving API Mocks from Local Files in Requestly
Serve mock APIs directly from local files using Requestly’s Map Local feature—develop, test, and debug without depending on backend servers.
Dinesh Thakur
October 24, 2025
Requestly helps a global learning & talent technology provider deliver brand-personalized demos in minutes
Global learning tech provider uses Requestly to deliver brand-personalized demos in minutes by swapping logos, images, and data—no code or backend changes.
Akanksha Bhadauria
October 23, 2025
AB Tasty scales testing and demos with Requestly
AB Tasty accelerates testing and demos with Requestly—switching environments, injecting scripts, and personalizing sites in seconds.
Akanksha Bhadauria
October 16, 2025
Best Ways to Use Collection Runners for API Workflows
Learn more about the best ways to use collection runners for API testing and automation. Discover how to streamline workflows, perform end-to-end validation, run data-driven tests, and monitor API performance efficiently.
Kanishk Rawat
October 16, 2025
How to Simulate Real User Journeys With Collection Runner
Learn more about simulating real-world API workflows with Requesty’s Collection Runner. Build dynamic, end-to-end test flows using chained requests, variable passing, and environment switching to ensure your APIs work as users expect.
Kanishk Rawat
October 16, 2025
Introducing Collection Runner: Run Complete API Workflows Seamlessly
Learn more about Requestly’s Collection Runner, tool to execute complete API workflows effortlessly. Automate, validate, and debug your APIs in one place.
Kanishk Rawat
October 15, 2025
Endpoint ft. Mahdi Taghizadeh: A CTO’s guide to product thinking, observability, and growth
Engineering leader Mahdi Taghizadeh shares insights on agile thinking, AI’s impact on development, and the underrated skills that define great engineers
Dinesh Thakur
October 7, 2025
Hacktoberfest 2025 × Requestly: Build with us this October
This Hacktoberfest Join Requestly! Contribute code or no-code, earn points, win rewards, and get featured on our leaderboard. 🚀
Dinesh Thakur
October 6, 2025
How Upscayl made API testing repo-native with Requestly Local Workspace
Upscayl uses Requestly Local Workspaces for repo-native, private API testing, making onboarding faster, safer, and always in sync with code.
Akanksha Bhadauria
October 1, 2025
Endpoint ft. Tim Ottinger: On the true role of AI and building better software
Tim Ottinger shares timeless lessons on AI, curiosity, and craftsmanship in software—insights for building impactful, future-ready tech careers.
Sagar Soni
September 30, 2025
A Beginner’s Guide to Testing GraphQL APIs with Requestly
Dinesh Thakur
September 26, 2025
How AI Agents Unlock New Integration Paradigms Beyond Traditional APIs
Sagar Soni
September 24, 2025
Endpoint ft. Jakub T. Jankiewicz: A pragmatic guide to Open Source, AI, and the SDLC 
Decoding the wisdom of the builders and thinkers behind the future of software
Sagar Soni
September 24, 2025