What is the Merchant API fee? *new* Abra Support Desk Updated March 09, 2017 21:16 Follow If you're a merchant using our Merchant API, you'll pay a fee to receive payment for e-commerce activities. Click here to complete the form and to learn more about partnering with Abra. Related articles What is an Abra merchant? How do I become an Abra merchant? Which merchants does Abra work with? Are Abra transactions Bitcoin transactions? *new* What is an Abra Teller? *new* Comments 0 comments Article is closed for comments.