RexSystem1 voteoriginally by @TheEssem on GitHub1 reply
Patreon has an API that's capable of providing the necessary info, and it has OAuth support which should allow a third-party hosted bot to utilize it. I'm unsure what the situation is with Subscribestar, however.
RexSystem1 voteoriginally by @hazencruz on GitHub OP
I feel like at that point you may just be able to make your own bot for your own community to do it, if you don't. Because things like patreon are involved, which involve also the payment method and possibly the address of the user, it might still be nice to have a trusted official bot for this, one day.
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Comment by @TheEssem
Comment by @hazencruz