As part of our ongoing work to replace legacy services, Companies House will shortly introduce the first phase of our (Rest JSON based) API Filing service, initially with the functionality to allow Change of Registered Office filings.
The goal of the project was to build a digital business ecosystem which will include a test environment and platform. The test environment will mimic the Companies House live service.
We will also be replacing the current BETA API developer hub functionality with a new version with more features to enable API Filing.
We will keep you informed of progress.