Fetch post block/field data as JSON with WordPress API

Usually find what I need from here without asking but seem to have run into something new, apologies if this has been answered elsewhere. I am building a site in wordpress which isn’t my usual CMS but seems straight forward enough. I’m trying to get the post data using the API accessing the data at /wp-json/wp/v2/pages/24 which is great until we get to the actual content itself. The block/page content comes only as fully rendered with html. I tried using different context but this seems to either do nothing or throw a permissions error.

What I’m looking for is something along the lines of the below but cant seem to find that anywhere. Is this just not what’s available or am I missing the point of this API all together? Any help would be great!

}