Using Stripe instead of IAP

I'm developing an online marketplace where users can sell digital items (e.g. videos) to other users and earn money. The users can request to cash-out their earnings. If I use a third party payment processing platform like Stripe to handle item purchase and payouts (since cash payout cannot be done via Apple API), is this a violation of Apple IAP guidelines?
Using Stripe instead of IAP
 
 
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