Is there are any APIs (REST or any other) which help us manipulate the sites related meta-data as su

Summary

Is there are any APIs (REST or any other) which help us manipulate the sites related meta-data as such to be able to add pages dynamically.

Content

Just wanted to know if there are any APIs (REST or any other) which help us manipulate the sites related meta-data as such to be able to add pages dynamically.

Specifically as an example in the attached screenshot, is there some API which lets us add a page to the site navigation similar to what happens on the ‘Add Page’ button click. 

We know that there are JS SDK APIs which let us read this meta data to say generate the menu navigation dynamically etc but we haven’t come across anything that would help us achieve what we have described above. It would be really helpful if you can give us some pointers to some documentation on how to achieve this. Any other information in this regard would also be useful