[troyk]

I've been looking for a something to do virtual cards for single-use payments and/or assign a virtual card to a vendor, preferably with webhook style notifications posting back to our servers with charge activity.

Is brex a fit now, or in the near future?

[hdubugras]

You can easily create a virtual card for vendors and set low limits! But we don't support webhooks yet, but good idea. We don't believe in single-use payments because it's a pain to manage multiple card number, but we soon we'll have the ability to restrict a card to a vendor/category so you can just add specific payment abilities to the same card number.