Based on our record, Steam Inventory Helper seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I think I used steam in conjunction with https://steaminventoryhelper.com/. Source: over 1 year ago
Only thing I can think of would be https://steaminventoryhelper.com/ But I don't think it's open source :(. Source: almost 2 years ago
Xsolla - Xsolla is an online service provider that primarily provides services for game developers.
Augmented Steam - Enhanced Steam fork by IsThereAnyDeal.