Blockchain merchant is an application for retail merchants as a simple POS system to accept bitcoin payments.
Blockchain Merchant makes it easy to accept Bitcoin payments at any retail location. It's the ideal point-of-sale (POS) solution for restaurants, bars, cafés, and all retail merchants accepting Bitcoin.
Just set up the Blockchain Merchant app with your bitcoin wallet address and your business can start receiving bitcoin payments via the Blockchain API.
site link: https://www.blockchain.com/our-products/blockchain-merchant/