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API Design Principles Skills Assessment Test
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API Design Principles Skills Assessment Test

This skill test helps Talent Acquisition and Development professionals to evaluate individuals' knowledge of frameworks and tools, familiarity with testing, and other skills. Moreover, it enables you to reduce your technical screening time by 80% and measure the skill gap of employees.

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What are API Designs and their principles?

It is developing and specifying the structure, behavior, and standard. It entails making choices on the endpoints, data formats, authentication techniques, error handling, and other features that control how software programs communicate and interact.

Why Choose iMocha?

Our skills test measures existing and potential employees' skill competencies and allow you to make unbiased hiring and upskilling decisions using detailed test performance reports. You can use our test to identify an individual's strengths and weaknesses in skills like C#, Go, security principles, etc.

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How it works

Test Summary

This skills assessment tests individuals' following abilities:

  • Experience and knowledge of the core API ideas
  • Understanding of the critical components of API design
  • Familiarity with architectural principles and design patterns for APIs
  • Ability to provide thorough and understandable API documentation
  • Capacity to create user-friendly and intuitive APIs
  • Knowledge of the security guidelines and recommended practices for APIs
  • Understanding of API testing and quality control procedures
  • Capability to build solutions and analyze complicated integration needs

Our test also offers advanced smart proctoring features that eliminate any chance of cheating or malpractice and help you preserve the integrity of your skills assessment processes.

Useful for hiring
  • API Designer
  • API Developer
  • Software Engineer (with a focus on API development)
  • Web Developer
  • Back-End Developer
  • Full-Stack Developer
  • Solutions Architect
  • Technical Architect
  • Integration Engineer
  • API Product Manager
Test Duration
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Sample Question
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You can customize this test by

Setting the difficulty level of the test

Choose easy, medium, or tricky questions from our skill libraries to assess candidates of different experience levels.

Combining multiple skills into one test

Add multiple skills in a single test to create an effective assessment and assess multiple skills together.

Adding your own
questions to the test

Add, edit, or bulk upload your coding, MCQ, and whiteboard questions.

Requesting a tailor-made test

Receive a tailored assessment created by our subject matter experts to ensure adequate screening.
How is this skill test customized?
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This skill test is customizable in many ways. You can either add your own questions or choose from our world's largest skills library to assess individuals across skills such as multiple coding languages, Front-end development, and more. Similarly, you can even customize the difficulty level of the questions to assess individuals' capabilities based on seniority level and specific job-role requirements. You can even ask our SMEs to curate a fully customized test based on your needs.

What are the most common interview questions related to API Design Principles?
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Here are common questions asked for under this domain:

  • Elaborate REST.
  • What is a cached response?
  • Can you brief us on the core components of HTTP Requests?
  • Differentiate REST from RESTful.
  • How would you choose REST and SOAP web services?
  • What is a Payload?

If you are looking for a more custom set of questions, iMocha can help!

What are the required skillsets to work on API Designing?
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Here is the list of required technical and non-technical for this profession:


  • Programming Languages
  • Web Technologies
  • API Specification Languages
  • Data Formats
  • API Design Patterns
  • Security Principles
  • API Testing and Monitoring


  • Analytical Thinking
  • Problem-Solving
  • Communication
  • Documentation
  • User-Centric Mindset
  • Adaptability