Issue accessing /hadiths endpoint

[NaxAlpha]

AoA,

I am trying to access /hadiths endpoint with the API key I have but unfortunately, it gives following 403 error :

{
  "message": "Missing Authentication Token"
}

While other endpoints work well with the API key, I do need access to this endpoint for my application. I tried but could not find any documentation. Can anyone help me out with this issue?

Thanks