OpenAPI Schema has invalid URLs

I’m trying to get a handle on the Companies House API response schema, so I had a look at the OpenAPI spec. It seems, however, that each endpoint has an invalid URL to the sub schema.

See below for an example:

"/company/{companyNumber}/registered-office-address": {
    "$ref": ""

Notice, which is an invalid URL.

I really need access to this for schema validation in our service. Can anyone help?


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To view the OpenAPI spec, just replace with

For example:

Kind of annoying to do this programmatically though, hopefully someone will fix the domain.


And watch out for the port, that may change!

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