X-apple-i-md-m [hot] -

If you’re:

If you are running a server that acts as a proxy or gateway for iOS requests (e.g., a corporate MITM proxy, a caching server, or an API gateway), you might wonder how to treat this header. x-apple-i-md-m

Interestingly, Apple has never officially documented x-apple-i-md-m in any developer documentation or WWDC session. It exists purely as an implementation detail of their internal network stack ( NSURLSession with custom CFNetwork properties). If you’re: If you are running a server

: The MachineID —the permanent identity of the device itself [13]. a corporate MITM proxy

You cannot simply "write" this header manually. To interact with Apple services programmatically: