The best alternatives to Loophook are Kong, Mashape Analytics, and Monday. If these 3 options don't work for you, we've listed a few more alternatives below.
Monday is a microservice developer tool. This CLI tool allows you to define a configuration to work with both local applications (Go, NodeJS, Rust or others) and forward some other applications over Kubernetes in case you don't want to run them locally.
Pactflow is an API testing and continuous delivery solution created to address the challenges faced by modern engineering teams building and running distributed system. We make testing APIs and microservices simple.