Hello Timm! Glad to see that the SpaceAPI is alive. I'm not really watched the status of the project recently, but I was fascinated with the API so that's why we've built an endpoint in the first place. I think it's a great project.
We know that the endpoint is broken, but we'll fix it in a month or sooner, I think -- we'll allocate some resources for the task (
https://github.com/cadrspace/maintenance/issues/68). We may need some help with it indeed, so we'll ask you. Thank you for noticing us.