Neither Standard Library nor Stoplight offers a free trial.
Standard Library is designed for Individuals, Freelancers, Medium Business and Small Business.
Stoplight is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Standard Library Starts at $15/Month whereas for Stoplight Starts at $99/Month.
Some top alternatives to Standard Library includes ApiWay, LinkApi, Meta API, API Maker, Codeless, Code2, NoCodeAPI, Merge, ApiX-Drive and Base API.
Some top alternatives to Stoplight includes Postman, MuleSoft Anypoint Platform, WSO2 API Manager, RepreZen API Studio, SwaggerHub, APITree, Apitive Studio, Mocklets, Meta API and APIToolkit.