Kong provides an open-source Application Programming Interface (API) marketplace for developers and engineers. It enables teams to distribute, monetize, manage, analyze, and more. Its customers use its interface for security, analytics, onboarding, monitoring, and access control. The company facilitates security and governance, building, running, and testing of APIs. It primarily serves the business industry. Kong was formerly known as Mashape. It was founded in 2017 and is based in San Francisco, California.

Rapid operates as a company focusing on application programming interface (API) development and management in the technology sector. The company offers a platform that allows developers to design, test, monitor, and publish APIs, providing a seamless experience for managing and sharing APIs. It primarily serves the software development industry. Rapid was formerly known as RapidAPI. It was founded in 2015 and is based in San Francisco, California.

WSO2 specializes in digital transformation and management software within the technology sector. The company offers a suite of tools for API management, integration, and identity & access management, designed to help enterprises create and deliver digital experiences. Its products are available as open source solutions, enterprise-grade SaaS, and private cloud deployments, catering to a variety of customer needs in building and managing digital platforms. It was founded in 2005 and is based in Santa Clara, California.

Conektto is a company that focuses on simplifying API integrations, operating within the technology and software industry. The company offers a platform that assists in designing, building, testing, and launching APIs, with the help of artificial intelligence to handle repetitive technical steps. Conektto primarily serves the software development sector, with a particular emphasis on product managers, architects, developers, testers, and DevOps. It was founded in 2022 and is based in Pleasanton, California.

Treblle is a company that focuses on providing solutions for API management in the technology sector. The company offers services such as real-time API monitoring and observability, auto-generated API documentation, API analytics, and API security. These services primarily cater to the needs of engineering and product teams in various industries. It was founded in 2020 and is based in Zagreb, Croatia.

ReadMe is an online platform for companies to document and showcase their application programming interface (API). The company offers interactive developer hubs that transform static API documentation into interactive guides, providing onboarding, ongoing guidance, and usage insights. The services primarily cater to the software development industry. It was founded in 2014 and is based in San Francisco, California.