What is qubitrefill?

qubitrefill helps you buy everyday digital goods, like gift cards, mobile top-ups, or eSIM data, using the worst-performing cryptocurrency in your portfolio. Instead of agonizing over which coin to sell off, you simply tell it what you want to buy, and it automatically identifies the crypto holding with the lowest expected return, uses it to pay for your purchase, and then recalculates your remaining investment portfolio without that weak asset. Under the hood, the project acts as an assistant inside Claude Code (a popular AI coding and automation tool). When you make a request in plain English, like "Buy a $20 Steam gift card and pay with my worst-performing crypto," the assistant takes over. It looks up the gift card on the Bitrefill marketplace, checks your portfolio to find your worst-performing asset, and figures out exactly how to fund the purchase. Once it has a clear plan, it pauses to ask for your final approval before actually spending any real money. This tool is designed for cryptocurrency investors who hold a basket of different digital assets and want a practical, low-friction way to clean up their portfolio. For example, if you have a small amount of a coin that has been lagging behind the rest of your investments, this tool automatically trims that dead weight and converts it into something you can actually use right away. It is ideal for people who treat crypto as both an investment and a daily spending account, but who do not want to manually track which asset is underperforming. A notable feature of the project is its strong emphasis on safety and human oversight. Because it deals with real financial transactions, the system is explicitly designed to interrupt you at exactly one critical moment: right before it makes a purchase. All of its other operations, like checking prices and reading market data, are read-only and run smoothly in the background, but the final "buy" button always requires a human to manually approve it.