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What is APIs Exploratory Testing and How it works? Why SDETs should use it?

Japneet Sachdeva
3 min readFeb 10, 2025

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Top API Testing Tools for 2025

  1. Postman
  2. Bruno
  3. Insomnia
  4. Swagger
  5. API Dog
  6. RestAssured (Java)
  7. Requests (Python)
  8. GatLing (Java/Scala)
  9. JMeter (Java)
  10. Locust (Python)

Why API’s Exploratory Testing is required?

Early adoption and detection are one of the most used concepts for Agile Software Development Lifecycle. Hence APIs exploration and testing gives us the testers part of that cycle. This can help in early detection of bugs and reduce the overall cost of fixes required in case of major bug impacts.

Before diving deep into how and what should we explore in an API. Let’s first understand what’s an API?

An API is an interface by which an application can use the product programmatically. Now this integration depends upon various factors like environments, code compatibility, request & responses etc.

Who is the end-user for APIs?

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Japneet Sachdeva
Japneet Sachdeva

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