Assertible might be a bit more popular than WireMock Cloud. We know about 1 link to it since March 2021 and only 1 link to WireMock Cloud. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Both of these tools you would have to run yourself. If you wanted a hosted solution you can use for example Mocklab which is based on Wiremock. Source: almost 3 years ago
Assertible.com — Automated API testing and monitoring. Free plans for teams and individuals. - Source: dev.to / almost 3 years ago
WireMock - WireMock - a web service test double for all occasions.
HttpMaster - HttpMaster is a professional software tool for testing and debugging HTTP applications, primarily aimed at REST API applications and web services.
Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.
API Fortress - API performance, accuracy, and uptime testing. Without code.
Mockable - Quickly define some REST or SOAP endpoints and have them return json/xml (dummy) data.
Hoppscotch - Open source API development ecosystem