The classic lean startup approach is to pivot in response to feedback from potential customers. You need to talk to your target customer group. This is not easy (particularly if like me you find that sort of thing difficult) but you have to do it. Call them on the phone - email will not work. What you are trying to find out is "will you pay for this service?".

If not, consider a pivot. But here again you have to do your market research. Again you have to talk to potential customers and find out if they are interested, how they would like to access the service and how much they might pay for it.

There is no way you can avoid this. Your pivot has to be positive or you are just wasting your time.