We have two API hosts, one is live and the other one is for sandboxing.
By using our Sandbox host, you can execute any API endpoint and receive responses. Your projects will be persistent between requests just like a live API, however, your projects will not be made live when you issue a /launch request. Instead, some endpoints will be simulated with random or similar data.
/progress: Will return random translation and proofreading progress percentage figures.
/download: Will return the original source documents, as if they are the translated versions.
/activities: Activity endpoints will only return sample data.