Experimental endpoint. Checks a YouTube video for the paid-promotion disclosure and infers likely sponsors/promoted brands from the public description, description links, promo-code text, and transcript. YouTube tells us that a video contains paid promotion, but it does not always tell us the sponsor directly, so this endpoint returns suspected sponsors with confidence and evidence. This is inferred, not an official YouTube sponsor field. Feedback welcome: support@scrapecreators.com Uses the caller's OpenAny gateway credentials. Charges and authorization are determined by the gateway.