What are some alternatives?
When comparing Kong and WSO2 API Manager, you can also consider the following products
Postman Collections - Biggest library of ready-made API collections for Postman
Gravitee.io - Gravitee.io is a flexible, lightweight and an open source API management solution.
Apigee - Intelligent and complete API platform
Tyk - Tyk is an open-source API gateway and API management platform.
MuleSoft Anypoint Platform - Anypoint Platform is a unified, highly productive, hybrid integration platform that creates an application network of apps, data and devices with API-led connectivity.
Amazon API Gateway - Create, publish, maintain, monitor, and secure APIs at any scale