This is similar to what Google Wallet does right?
https://support.google.com/wallet/answer/6285486?hl=en
There was some rebranding news recently; you may see them consolidate various payment brands into the term Google Pay. But they're keeping their p2p payment feature.
Disclosure: Although I used to work at Google, I don't now and have never worked on their payment tech. I'm just a satisfied user who finds PayPal/Venmo a shady enough company to avoid when decent alternatives exist to accomplish the goal.
https://support.google.com/wallet/answer/6285510?hl=en
Google Wallet hasn't behaved the same for me since.