Test Your CBT App with 2,000 Free SdashAPI Sandbox Credits

Building a CBT application should not begin with paying for an API you have not tested or fully understood.

Before choosing an API provider, developers need to confirm that the available endpoints, question structure, response format and documentation will work correctly with their applications. They should be able to make real API requests, examine the returned data and build a working prototype before making a financial commitment.

That is why SdashAPI has introduced a Sandbox Account that gives developers 2,000 free API credits to test its CBT questions API.

The SdashAPI Sandbox Account provides a practical testing environment for developers building educational websites, mobile applications, school portals, quiz platforms and computer-based testing systems. It allows developers to connect their applications to SdashAPI and understand how the service works before upgrading to a paid plan.

What Is the SdashAPI Sandbox Account?

The SdashAPI Sandbox Account is a free developer account created for testing and development.

Every sandbox account receives 2,000 API credits. Developers can use these credits to make requests to the available sandbox endpoints and test how examination questions are delivered to their applications.

It is intended for developers who are still:

• Learning how the SdashAPI integration works
• Building a new CBT application
• Creating a minimum viable product
• Testing an educational business idea
• Developing a demonstration for clients or investors
• Comparing Nigerian past-questions API providers
• Preparing an application before its public launch

Instead of purchasing a plan immediately, a developer can create a sandbox account, obtain an API key and begin testing the integration.

The 2,000 free credits provide enough room to test different application features and determine whether SdashAPI is suitable for the intended project.

Why Developers Should Test a CBT API Before Paying

An API may look suitable when reading its marketing page, but the real test begins when a developer starts working with its responses.

Developers need to know whether the API returns information in a predictable and usable format. They must also understand how authentication works, how questions are requested and how errors are handled.

Before paying for a CBT questions API, a developer may want to answer questions such as:

• Is the API easy to integrate?
• Are the responses returned in JSON?
• Can questions be filtered by subject?
• Can the application request questions from a particular examination?
• Can questions be filtered by examination year?
• Are answers included in the response?
• Are options returned in a structured format?
• Are solutions or explanations available?
• How will the application handle questions containing passages or images?
• What happens when a request is unsuccessful?
• Can the API support the planned CBT experience?

The SdashAPI Sandbox Account gives developers an opportunity to answer these questions through actual development and testing.

This removes much of the uncertainty involved in selecting a past-questions API provider.

What Can You Build with the Sandbox?

The sandbox can be used to build and test the important parts of a CBT application.

Developers can connect their backend, website or mobile application to SdashAPI and experiment with different ways of presenting examination questions to users.

Some of the features that can be developed and tested include:

Random Question Selection

A CBT application may need to present a different combination of questions whenever a user begins a new practice session.

Using the API, developers can test how questions are requested and displayed inside their applications. They can also build a system that creates new practice sessions without always showing questions in the same order.

Subject-Based Question Filtering

Educational applications often allow students to select the subject they want to practise.

A developer can test subject selection for courses such as English Language, Mathematics, Biology, Chemistry, Physics, Economics, Government, Commerce, Geography and other available subjects.

The application can send the selected subject to the API and display the corresponding questions to the student.

Examination-Year Filtering

Some students prefer to practise questions from a specific year, while others want questions from several years.

The sandbox gives developers an opportunity to test how their application handles examination-year selection and displays the requested questions.

This can be useful when building features such as:

• Practise questions from a selected year
• Compare questions across different years
• Create yearly mock examinations
• Organise past questions by examination session

Answer Checking

A good CBT application should be able to compare the option selected by a student with the correct answer.

Developers can use the returned question and answer structure to implement instant answer checking. The application can inform the student whether an answer is correct and update the student’s score.

CBT Practice Sessions

The sandbox can be used to build a complete practice flow.

A typical practice session may include:

1. Selecting an examination
2. Choosing a subject
3. Selecting the number of questions
4. Answering each question
5. Moving between questions
6. Submitting the examination
7. Calculating the final score
8. Reviewing correct and incorrect answers

Developers can test this entire process with the free credits before moving their application to production.

Question Navigation

Students need to move easily between questions during a CBT session.

With the SdashAPI question data, developers can test features such as previous and next buttons, question number navigation, answered-question indicators and flagged questions.

Score Calculation

The application can calculate the number of correct answers, incorrect answers and unanswered questions.

Developers can also build more detailed performance features, including:

• Percentage scores
• Subject-by-subject performance
• Practice history
• Time spent on questions
• Weak-topic identification
• Progress tracking

Explanations and Solutions

A useful examination-preparation application should do more than mark answers as correct or incorrect.

Where explanations and solutions are available, developers can show students why an answer is correct. This can turn a basic CBT application into a more complete learning platform.

The sandbox allows developers to see how explanations and solutions can be presented inside their user interface.

Examination Questions Available Through SdashAPI

SdashAPI is built for developers creating applications around Nigerian examinations.

The API provides structured questions for examinations such as:

• JAMB/UTME
• WAEC/WASSCE
• NECO
• Post-UTME
• University examinations

Depending on the endpoint and available question information, a response may include the question, options, correct answer, examination type, examination year, subject, passage, image, solution, explanation and other useful metadata.

Because the information is returned in a structured format, developers can decide how it should appear inside their applications.

The same API can support different types of products, from a simple quiz website to a full examination-preparation platform.

Who Can Use the SdashAPI Sandbox?

The sandbox is suitable for individual developers, startups, schools, agencies and educational organisations.

Mobile-App Developers

Developers building Android or iOS applications can use the sandbox to test their API integration before publishing their applications.

It can be used with mobile-development technologies such as React Native, Flutter, native Android, native iOS and other frameworks capable of communicating with a REST API.

Website Developers

Web developers can connect SdashAPI to educational websites, online quiz platforms and browser-based CBT applications.

They can test how questions load, how users select answers and how results are calculated.

Educational Startups

A startup may want to validate an idea before spending heavily on development and infrastructure.

With 2,000 sandbox credits, the team can build an early version of the product, test its main features and collect feedback before purchasing a production plan.

Schools and Training Centres

Schools, lesson centres and examination-preparation organisations can test how SdashAPI might work with their existing systems.

They may use it to create practice examinations, revision tests or internal CBT platforms.

Freelance Developers and Agencies

Developers building educational applications for clients can use the sandbox during development.

This makes it easier to demonstrate a working CBT system before the client decides on the production plan required for the final application.

Students Learning API Development

The sandbox can also help students and beginners learn how to integrate a REST API into a real project.

Instead of practising with random demonstration data, they can build an educational application using structured examination questions.

A Developer-Friendly Nigerian Past-Questions API

Many developers have ideas for JAMB, WAEC, NECO and Post-UTME applications, but accessing usable examination data can be difficult.

Questions stored in PDF documents, pictures or unstructured files may require significant time to organise before they can be used in an application.

SdashAPI makes the integration process easier by returning questions in a structured JSON format.

A developer can request the required information, receive a predictable response and use it within an application. This reduces the amount of manual work required to build and maintain a large CBT question database.

The SdashAPI Sandbox Account makes this structured data more accessible during the early development stage.

With 2,000 free credits, developers are not limited to making only one or two demonstration requests. They can test different parts of their application and observe how the API behaves across multiple use cases.

We believe this makes the SdashAPI sandbox one of the most accessible testing options offered by a Nigerian CBT questions API provider.

How the Sandbox Can Reduce Development Risk

Choosing the wrong API can delay a project.

A developer may complete the user interface only to discover that the selected API does not return the information the application requires. The team may then need to change providers, restructure its database or rewrite important parts of the application.

Testing with the SdashAPI Sandbox Account helps reduce this risk.

Before launching, developers can confirm that:

• Authentication works correctly
• The application can communicate with the API
• Returned questions can be displayed properly
• Options are mapped to the correct controls
• Answers can be checked correctly
• Scores can be calculated
• Explanations can be presented clearly
• API errors can be handled safely
• The overall integration fits the product

By completing these checks during development, teams can make better technical and financial decisions.

Build a Working CBT Prototype

The sandbox is particularly valuable when creating a minimum viable product.

A developer can use the 2,000 credits to build a prototype containing the main parts of a CBT platform. This prototype can then be shown to potential users, business partners, clients or investors.

A working prototype could include:

• User registration
• Examination selection
• Subject selection
• Question retrieval
• A CBT examination screen
• A countdown timer
• Answer selection
• Automatic scoring
• Result presentation
• Answer review and explanations

Once the concept has been validated, the application can move from the sandbox environment to a suitable paid plan.

From Testing to Production

The SdashAPI Sandbox Account is intended for development, experimentation and integration testing.

When an application is ready to serve real users, the developer can upgrade to a paid SdashAPI plan. The appropriate production option will depend on the application’s expected traffic, required access and intended use.

This creates a straightforward development journey:

1. Create a SdashAPI Sandbox Account.
2. Receive 2,000 free API credits.
3. Obtain an API key.
4. Review the API documentation.
5. Connect the application to SdashAPI.
6. Build and test the required CBT features.
7. Confirm that the integration meets the project’s needs.
8. Upgrade when the application is ready for production.

Developers can therefore begin with testing, validate their products and pay for broader access when they are ready to launch.

Why SdashAPI Introduced the Free Sandbox

SdashAPI is not only providing examination questions. We are building infrastructure that developers can use to create educational products for Nigerian students.

Making that infrastructure easier to test is an important part of supporting the developer community.

The free sandbox was introduced to:

• Reduce the cost of starting a CBT project
• Help developers understand the API before paying
• Support educational startups during early development
• Make prototype development easier
• Encourage more innovation in Nigerian EdTech
• Give developers confidence in their integrations
• Create a smoother transition from development to production

We want developers to evaluate SdashAPI by actually building with it.

Start Building with 2,000 Free Credits

If you are developing a JAMB CBT application, WAEC practice platform, NECO preparation app, Post-UTME website, school examination system or educational quiz platform, the SdashAPI Sandbox Account gives you a practical place to begin.

You can create an account, receive 2,000 free API credits and start testing the CBT questions API within your project.

Connect your application, make real requests, examine the JSON responses and build the features your users need.

When your application is tested and ready for real users, you can upgrade to a suitable SdashAPI production plan.

Start with the sandbox. Build your prototype. Test your integration. Launch when you are ready.