circle maybe?
and credit cards are not like paypal, that you can chargeback at any moment. I don't think they are that insecure to trade BTC
1) Circle doesn't work for EU cards. I know I know, there's only a few of us, but we want Bitcoin too please.
2) Have any of you ever TRIED a chargeback on a debit or credit card?? It's FAR from simple. When my card got cloned (and abused) a few years ago, it took me MONTHS to get my money back. You think this shit happens overnight?

Ist.