Neither Yappes nor Standard Library offers a free trial.
Yappes is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Standard Library is designed for Individuals, Freelancers, Medium Business and Small Business.
Pricing for Yappes Starts at $90/Month whereas for Standard Library Starts at $15/Month.
Some top alternatives to Yappes includes Apigee Edge, Postman, WSO2 API Manager, Fireapis, Apinizer, Meta API, API Maker, APIToolkit and APImetrics.
Some top alternatives to Standard Library includes ApiWay, LinkApi, Meta API, API Maker, Codeless, Code2, NoCodeAPI, Merge, ApiX-Drive and Base API.