Yes, both Basecamp and WSO2 API Manager offer a Free Trial.
Basecamp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
WSO2 API Manager is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Basecamp Starts at $15/user/month when monthly whereas for WSO2 API Manager Starts at $2,000.
Some top alternatives to Basecamp includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, Trello, Wrike, TeamGantt, monday.com, Asana, Teamwork, ProjectManager.com, Quick Base, Project.co and Notion.
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.