As far as I can tell, there are scant few QR Code generating apps that integrate with Zapier.
I wanted to generate static QR Codes. i.e., I don’t need them to link to a website that can then be redirected later.
I wanted to generate LOTS of QR Codes. Which made this model fundamentally incompatible with a service that limits you to a couple hundred codes a month.
So I made a really really simple app that uses the “.toString()” function of node-qrcode to generate codes. They work fine as long as it goes into a fixed-width font with zero space between the lines. Perfect for using with a Google Docs template. I’m pretty sure you could get this into an email as well.
I don’t really have time to dedicate to supporting this, but here’s the private integration link: https://zapier.com/developer/public-invite/156999/3eedef2f10cb6f2f0f2beeff204733de/
Here’s a screencast with Google Slides (I use 8pt Courier in this demo.)