API Platform vs Escher: What are the differences?
Developers describe API Platform as "REST and GraphQL framework to build modern API-first projects". It is a set of tools to build and consume web APIs. You can build a fully-featured hypermedia or GraphQL API in minutes. Leverage its awesome features to develop complex and high performance API-first projects. Extend or override everything you want. On the other hand, Escher is detailed as "An Elm-like web framework for Julia". A web server for 2016. Escher's built-in web server allows you to create interactive UIs with very little code. It takes care of messaging between Julia and the browser under-the-hood. It can also hot-load code: you can see your UI evolve as you save your changes to it.
API Platform and Escher can be primarily classified as "Frameworks (Full Stack)" tools.
Escher is an open source tool with 311 GitHub stars and 63 GitHub forks. Here's a link to Escher's open source repository on GitHub.