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

HTTP Interceptor

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

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api test generator

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.
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Sagar Soni
January 22, 2026
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Http Interceptor

Featured posts

what-is-a-soap-api
What Is a SOAP API? Complete Beginner Guide

SOAP APIs have been around for more than two decades, but they are still widely used in banking, healthcare, telecom, travel, insurance, and enterprise sof…

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Kanishk Rawat
March 30, 2026
request-response-examples-requestly
Introducing Examples in Requestly
Request Examples in Requestly help you save, reuse, and manage API request variations easily. Test scenarios faster without duplicating requests.
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Kanishk Rawat
March 18, 2026
import postman collections into requestly
Import Postman Collections into Requestly: Migration Guide
Learn how to import Postman collections and environments into Requestly. Follow this step-by-step guide to migrate your API workflows easily.
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Kanishk Rawat
March 10, 2026

All posts

an automation flow chains requests with extracted variables and conditions so a whole scenario runs from start to finish
How to Build API Automation Flows (A Visual Guide)
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Ronak Kadhi
July 10, 2026
a command-line runner executes a saved collection headlessly and returns a non-zero exit code on failure so ci can stop the build
How to Run API Tests from the Command Line (Newman and Beyond)
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Ronak Kadhi
July 9, 2026
api monitoring runs a request on a schedule, asserts on the result, records each run, and alerts the team when it fails
How to Set Up API Monitoring
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Ronak Kadhi
July 8, 2026
a load test ramps up virtual users, drives traffic, watches p50/p95/p99 latency, and finds the point where the system bends
API Load and Performance Testing: A Practical Guide
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Ronak Kadhi
July 7, 2026
a grpc test invokes a method defined in the .proto contract and asserts that the typed response matches the schema
How to Test gRPC Services and APIs
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Ronak Kadhi
July 6, 2026
testing a websocket means opening one connection and asserting on the stream of messages exchanged, not just the handshake
How to Test WebSocket APIs (Tools and Techniques)
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Ronak Kadhi
July 3, 2026
chain requests by capturing a token from one response into a variable, then referencing it in later requests with no copy-paste
How to Chain API Requests (Passing Data Between Requests)
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Ronak Kadhi
July 2, 2026
a post-response test asserts the status code and body; passing assertions show green, a failing one shows red so broken contracts fail loudly
How to Write API Tests and Assertions
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Ronak Kadhi
July 1, 2026
every request has two script hooks: a pre-request script runs before the call and a post-response script runs after
Pre-request and Post-response Scripts in API Testing
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Ronak Kadhi
June 30, 2026
write a request once using {{baseurl}} and {{token}} variables, then switch the active environment to target dev, staging, or prod
How to Use Environment Variables in API Requests
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Ronak Kadhi
June 29, 2026
variable precedence from narrowest to broadest: runtime, iteration data, environment, collection, then global — the narrowest match wins
How to Use Variables in API Testing: Environments, Scopes & Precedence
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Ronak Kadhi
June 26, 2026
ad-hoc curl requests are fast but hard to repeat; a dedicated api client adds collections, environments, tests, and runs
The Best API Testing Tools in 2026: A Practical Guide by Category
API testing isn’t one job, so there’s no single best tool. A by-category guide to the best API testing tools in 2026 – interactive clients, code frameworks, load testing, and contract testing – and how to choose.
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Ronak Kadhi
June 25, 2026
send a bearer token in the authorization header as 'bearer '; omitting the scheme or leaving a variable unresolved causes a 401
How to Use Bearer Tokens for API Authentication
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Ronak Kadhi
June 24, 2026
send an api key in a header like x-api-key (preferred) rather than a query param, which leaks into logs and history
How to Set Up API Key Authentication
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Ronak Kadhi
June 23, 2026
an api key identifies an application with a static secret; oauth 2.0 lets a user grant scoped, expiring, revocable access
API Key vs OAuth: Which Should You Use?
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Ronak Kadhi
June 22, 2026
oauth 2.0 is a protocol for getting a token; jwt is a token format with header, payload, and signature — different layers, not rivals
OAuth vs JWT: What’s the Difference?
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Ronak Kadhi
June 19, 2026
the oauth 2.0 authorization code flow in four steps: redirect to authorize, user consents, server returns a code, app exchanges it for a token
OAuth 2.0 Flows Explained
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Ronak Kadhi
June 18, 2026
comparison of api key, bearer/jwt, and oauth 2.0 across what they carry, how they're sent, expiry, revocation, and best use
API Authentication Methods: A Complete Implementation Guide
A complete guide to API authentication methods – API keys, Basic Auth, Bearer tokens, OAuth 2.0, OAuth 1.0, and session cookies – with how each works, when to use it, security trade-offs, and how to test them in Requestly.
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Ronak Kadhi
June 17, 2026
rest sends readable json over http/1.1; grpc sends compact protobuf over http/2 against a typed schema
gRPC vs REST: When to Use Which Protocol
gRPC vs REST explained: how Protocol Buffers, HTTP/2, and streaming differ from JSON over HTTP, when to use each, and how to test both.
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Ronak Kadhi
June 16, 2026
one screen of data, two philosophies: rest makes five get round-trips while graphql uses one post query
GraphQL vs REST: How to Choose and Test Both
REST and GraphQL make opposite trade-offs. How to choose between them, and how testing each one actually differs – with runnable assertions for both.
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Ronak Kadhi
June 15, 2026
polling makes repeated requests and wastes most of them; a webhook delivers the event in a single push the instant it happens
Webhooks vs APIs: What’s the Difference and When to Use Each
Webhooks vs APIs isn’t really a versus – it’s pull vs push. How a webhook differs from a request/response API call, when to use each, why you often use both, and how to test them.
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Ronak Kadhi
June 12, 2026
a 401 is an authentication problem: the request's expired bearer token triggers a 401 unauthorized with a www-authenticate header
How to Fix 401 Unauthorized Errors When Testing APIs
A 401 Unauthorized error means the API can’t verify who you are – not that it’s broken. What a 401 really means, how it differs from a 403, and how to debug and fix it in an API client.
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Ronak Kadhi
June 11, 2026
same request, two outcomes: 200 ok in the network tab but blocked by cors policy in the browser console
How to Fix CORS Errors When Testing APIs
A CORS error is the browser blocking a response, not an API bug. Why it happens, why it never appears outside the browser, and how to fix it right.
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Ronak Kadhi
June 10, 2026
endpoint-manish-verma-automation-myth-qa-mindset
Endpoint ft. Manish Verma: QA Mindset & Automation Myth
Meet the thinkers and builders shaping software’s future. Endpoint by Requestly brings real-world insights and hard-earned lessons from industry leaders.
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Kanishk Rawat
April 9, 2026
soap-vs-rest
SOAP vs REST: Which One Should You Use?
Compare SOAP vs REST in 2026. Learn the differences in speed, security, XML vs JSON, performance, and when to choose SOAP or REST APIs
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Kanishk Rawat
March 31, 2026
what-is-a-soap-api
What Is a SOAP API? Complete Beginner Guide

SOAP APIs have been around for more than two decades, but they are still widely used in banking, healthcare, telecom, travel, insurance, and enterprise sof…

Image
Kanishk Rawat
March 30, 2026
how-to-organize-api-requests-for-multiple-testing-scenarios
How to Organize API Requests When Testing Multiple Scenarios
Testing APIs across multiple scenarios doesn’t have to be messy. Learn how to structure, name, and organize API requests so your team can test faster, debug easier, and stay aligned.
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Kanishk Rawat
March 18, 2026
request-response-examples-requestly
Introducing Examples in Requestly
Request Examples in Requestly help you save, reuse, and manage API request variations easily. Test scenarios faster without duplicating requests.
Image
Kanishk Rawat
March 18, 2026
best postman alternative in 2026
Best Postman Alternative in 2026: Faster API Client for Developers
Postman’s 2026 pricing changes ended free team collaboration. Discover why developers are switching to Requestly
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Akanksha Bhadauria
March 12, 2026
import postman collections into requestly
Import Postman Collections into Requestly: Migration Guide
Learn how to import Postman collections and environments into Requestly. Follow this step-by-step guide to migrate your API workflows easily.
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Kanishk Rawat
March 10, 2026
introducing dynamic variables generate realistic test data
Introducing Dynamic Variables: Generate Realistic Test Data Instantly

Dynamic variables are built-in values that are generated automatically at request execution time. No manual edits. No helper scripts. No duplicate test data…

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Kanishk Rawat
March 2, 2026
endpoint ijeoma okereafor human element testing ecosystem quality
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.
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Kanishk Rawat
February 25, 2026
write scripts validate api response data requestly
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…

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Kanishk Rawat
February 24, 2026
10 practical script examples for api testing
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.
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Kanishk Rawat
February 24, 2026
what is curl guide
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…

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Kanishk Rawat
February 12, 2026
how to convert openapi spec to an api collection
How to convert OpenAPI spec to an API collection
Easily convert your OpenAPI spec into a fully organized API collection with Requestly—no manual setup required for fast and accurate testing.
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Kanishk Rawat
February 11, 2026
api test generator
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.
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Sagar Soni
January 22, 2026
top builds from pec hacks 3 0 metallisense takes the requestly prize
Top Builds at PEC Hacks 3.0: MetalliSense Wins
Explore top builds from PEC Hacks 3.0 and discover how MetalliSense leveraged AI and Requestly for innovative real-time metal analysis.
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Akanksha Bhadauria
January 19, 2026
requestlytheall in oneapitestermockingtrafficinterceptiondebuggingtoolfordevelopers
Requestly: API Testing, Mocking & Debugging Tool
Unlock seamless API testing, mocking, and debugging with Requestly—a must-have tool for developers to enhance productivity and streamline workflows.
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Kanishk Rawat
December 11, 2025
the all in one alternative to charles proxy postman for modern developers
All-in-One Alternative to Charles Proxy + Postman
All-in-one tool that replaces Charles Proxy and Postman with fast interception, API testing, mocking, and local-first debugging.
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Sohail Saifi
December 11, 2025
running ollama with requestly a guided tutorial
Running Ollama with Requestly – A guided tutorial
Unlock the power of local AI by learning how to run Ollama with Requestly for seamless, secure LLM access without backend code!
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Sayanta Banerjee
December 4, 2025
why you need a local first api client
Why You Need a Local-First API Client (With Example)
Discover why a local-first API client enhances speed, privacy, and reliability in your API testing, minimizing hidden dependencies and technical debt.
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Anusha Kuppili
November 28, 2025
how to use cursor to generate api testcases in requestly
How to use Cursor to Generate API Testcases in Requestly
Unlock faster API test case generation with Cursor and Requestly, making your testing process more efficient and reliable without manual coding.
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Aniket Bhattacharyea
November 27, 2025
what are api keys? a guide to authentication and security, requestly logo on a black background with white circular
What Are API Keys? A Guide to Authentication and Security

APIs allow applications to communicate with each other. To control and secure access, APIs often require a method to identify the client making the request….

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Navdeep Rathore
November 18, 2025
what is grpc meaning benefits and architecture
What is gRPC: Meaning, Benefits, and Architecture
Understand what gRPC is, its key features, use cases, and its architecture. Also, learn how to set up and implement gRPC in your application.
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Navdeep Rathore
November 18, 2025
what is rest api examples principles and use cases
What is REST API: Examples, Principles, and Use Cases
Learn what REST APIs are with practical examples such as user management, e-commerce, and payment systems, and how they work in real scenarios.
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Navdeep Rathore
November 18, 2025
rest api client features benefits top tools
Rest API Client: Features, Benefits & Top Tools
Explore what a REST API Client is, its benefits, features, and top tools in 2025. Compare Requestly, HTTPie, ARC, Curl, and Thunder Client.
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Navdeep Rathore
November 18, 2025
lodash in api testing requestly
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.
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Kanishk Rawat
November 17, 2025
top 10 api simulation tools comparison guide
Top 10 API Simulation Tools Comparison Guide
Discover the best API simulation tools in our comprehensive comparison guide, helping you streamline development and enhance testing efficiency.
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Parth Bhardwaj
November 13, 2025
no bugs november hero
Announcing No-Bug November: Get Paid for Bugs
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!
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Akanksha Bhadauria
November 10, 2025