I want eCommerce solution to my application where money can be transfer from buyer to seller

Rails
1

Workflow:
Buyer can purchase a product from my application by using various
options
like PayPal or CreditCard.
The money can be directly credited to the seller.

Is there any built in solution in Rails, Suggest me.

2

No built in solution shipped with Rails. However, you may want to check
out
the Active Merchant gem, which supports many payment gateways to include
PayPal.