What do you mean by a separate api for dynamic data? The data under discussion isn't "dynamic", it's still static, it just isn't known to the schema in questio

What do you mean by a separate api for dynamic data? The data under discussion isn't "dynamic", it's still static, it just isn't known to the schema in question at runtime (since it's only known to a different schema). That means you can't access it by name, since the field names aren't known.