I built remembered checkout for Voice calls
If you ever built a voice agent that takes orders or books appointments you know its essential to collect payments to avoid cancellations/no-shows. However, most consumers won't complete paying because of the friction involved (stumbling for the card, speaking the card number CVV etc). I built Ringup to help voice agents recognize repeat callers with just their phone number and charge their saved card in seconds. I've been asked what makes this lookup possible. Its the newly launched identity APIs from US carriers (T-Mobile, ATT, Verizon) as part of CAMARA project. These set of open…
I built remembered checkout for Voice calls launched on July 25, 2026 with 5 votes, #4,557 of 24,623 launches that month and more than 75% of that year's launches.
What it does
Ringup is the identity and payments layer for AI voice agents. With Ringup, your agent knows who’s calling: greet them with name, recall their preferences, and charge a saved card in one word. Money settles straight to the merchant's processor.
Ringup is the identity and payments layer for AI voice agents. Your agent knows who’s calling: recognize the caller, recall their context, and charge a saved card in one sentence, or text a one-tap link to pay. Money settles straight to the merchant's processor.
Ringup helps voice agents recognize callers by phone number alone, so they can greet them, remember their usuals, and charge their saved card in seconds. Payments settle directly on the merchant's existing processor. Voice AI books the table, takes the order, files the claim. But every call starts from zero: the regular gets treated like a first-timer, reading out a 16-digit card number every time a payment comes up. The agent takes the order instantly, but the caller is a stranger: no name, no saved card. They still drive over and stand at the register to pay, adding lines for diners and work for staff. The agent greets the regular by name, confirms the usual, and charges their saved card…from ringup.dev
In the maker’s words, at launch
Ringup is built to simplify voice payments. My hypothesis is Voice AI will lead to an explosion in people transacting over phone calls. Ringup helps consumers save their card details once and use it everywhere. It helps merchants get payments directly to their processor. And it helps developers by reducing…
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