Yes, both WSO2 API Manager and Kong offer a Free Trial.
WSO2 API Manager is designed for Large Enterprises, Medium Business and Small Business.
Kong is designed for Large Enterprises, Medium Business and Small Business.
Pricing for WSO2 API Manager Starts at $2,000 whereas for Kong Starts at $250/Month.
Some top alternatives to WSO2 API Manager includes 3scale, Dell Boomi API Management, Apigee Edge, IBM API Connect, Kong, Tyk API Management Platform, WSO2 Identity Server, Meta API, Software AG webMethods, NextGen Healthcare EHR, NextGen Enterprise and NextGen Office.
Some top alternatives to Kong includes Akana Platform, 3scale, Apigee Edge, WSO2 API Manager, Tyk API Management Platform, NGINX Plus, Cloud Gateway, Meta API and Google Cloud APIs.