Top Tools for Rapid API Development | Hacker Noon

June 5th 2020

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From design to deploy, these tools will have your API and microservices up and running in no time.

With today’s businesses running a plethora of systems across diverse environments, taking advantage of the modern IT economy lies in an organisations ability to create value via their APIs and microservices.   While the process of building and managing APIs can be simple at its root (particularly with REST, which is extremely lightweight) there are many hidden complications during implementation. For this reason, I’ve put together this quick guide to make your tasks easier. 

Linx (for building and publishing an API)

Linx is a powerful suite of low-code development software designed for building backend applications quickly. It enables companies to construct new software applications quickly without having to hire an entire team of engineers. Designed for versatility and speed, one of its most robust and useful features is its ability to build web services and host APIs.

Instead of needing to write code for many repetitive pieces, Linx provides a full platform for putting together – and hosting – powerful applications that make use of cutting edge technologies available through web services.

There are very few drawbacks to using Linx for your development processes. Whether you have existing applications that you would like to connect via SOAP or REST, or if you wish to build an entire software suite within Linx, the API functionality will work extremely well for making the connections today to enable your applications to “play well with others.”

Linx, however, is not a full API management tool in itself; testing, for instance, should be handled by a third-party application.


See it in action

Swagger Editor (for documenting)

Swagger editor is a tool which allows you to design and document APIs using a free web-based open-source editor. It is designed solely for creating OpenAPI-based APIs. It provides options to work web-based or in a local environment.

Good For (Best Use Case)

Well-documented APIs are a necessary aspect of providing them. Creating documentation can be painstaking, however, if people can’t understand how to use your application’s APIs, they simply won’t use them. It’s very helpful for creating easily shareable documentation that can drastically improve the user experience for those attempting to use your APIs.


It provides instant visualization of the documentation as it is being created, and also has a number of customization options. It has some helpful auto-completion tools, and will help create server stubs for APIs in a wide array of programming languages. It does not, however, support hypermedia.


See it in action

Postman (for REST testing)

Postman is a complete API development testing and environment which can enable creating simple to complex APIs and to verify their functionality prior to building into your applications. You can manually create simple API calls using a straightforward user-friendly interface.

Good For (Best Use Case)

As ensuring APIs work properly is its own issue, beyond any coding you may need to do, it can be extremely helpful to have an environment where one can verify if payloads are being sent and/or received properly prior to any development work.


Postman provides full integration with existing SDLC methods, ranging from various Agile and Dev/Ops environments to larger waterfall-type organizational models. This makes it well-suited for the professional development process. For this reason, it is regularly used by many software development teams. It is a little memory-intensive, so may run slowly on some computers.


See it in action

(for SOAP and REST testing)

SoapUI is a complete API automation testing framework for both REST and SOAP methodologies. Features include API functional testing, performance testing, security, and API mocking, and contains reporting tools for viewing metrics of large-scale API testing procedures. SoapUI has a free open source and professional versions.

Good For (Best Use Case)

SoapUI is ideal for developers who need to build APIs on a daily basis, and those who are required to manage large sets of connections. It provides the ability to monitor the activity and behaviour of large arrays of APIs with high levels of activity.


SoapUI boasts a wide range of functional testing features as well as many important security features, ranging to alerts from SQL injection to XSS and more. It provides an array of highly useful actionable alerts for any problems that may occur.

As it is open-source, developers may modify any of the source code to meet their own needs at any time. It is an advanced tool, so for many users, some pieces may be more complicated than they may be used to. The free trial version does not offer as many of the more user-friendly pieces.


Working with APIs may seem complicated, as it requires connecting seemingly unrelated applications and making it possible for them to work together. However, due to evolution from SOAP to REST (and soon, likely GraphQL), the process has gotten considerably easier.

The fact that applications use common communication formats like JSON makes it possible for a whole new range of development opportunities. APIs make it possible to create lightweight applications which can easily adapt and traverse the rapidly changing ecosystem of web software.

With the right tools, API development and management can become a seamless part of your development process and enable you and your clients to be able to remain agile in today’s competitive environment.



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