Neptune Venture Studio launches keyx for email-based USDC transfers

Neptune Venture Studio Ltd has launched keyx, a non-custodial app that lets people send and receive USDC using only an email address. The service is live now on the Arbitrum network and is aimed at making digital dollar transfers simpler for people without crypto wallet experience while limiting personal data collection.

Why it matters: - keyx lowers the barrier to using digital dollars by removing the need for a public wallet setup or crypto jargon. - The app is built to reduce the amount of personal data exposed during payments, which may appeal to users concerned about privacy on financial apps. - The service could make stablecoin transfers more practical for everyday tasks like splitting bills, repaying friends and paying freelancers.

What happened: - Neptune Venture Studio Ltd launched keyx, a mobile app for sending and receiving USDC by email. - The service has been publicly available at keyx.pro since 19 September 2026. - keyx runs on the Arbitrum network. - The app is available now through a mobile web browser, with no download required. - The app is available in Italian and English. - Neptune Venture Studio Ltd is based in London and registered in England and Wales.

The details: - keyx is non-custodial, meaning each user controls funds at a personal blockchain address and the platform does not take custody of the USDC. - Users sign in with an email address and a one-time code, and the app creates an account automatically. - Users can view balances, receive funds and send USDC to either a compatible blockchain address or another person's email address. - The app covers network costs for transfers. - A feature called Send to anyone lets users send USDC to people who do not yet have a keyx account. - The recipient gets an email invitation, signs up and claims the transfer. - Unclaimed funds are returned to the sender after seven days, in line with the service terms. - The company expects the feature to be used for bill splitting, repayments, family transfers and freelance payments. - The app does not require a public profile, visible contact list or social features. - keyx is designed to collect only the information needed to operate the service. - USDC is a dollar-denominated stablecoin designed to hold a value equal to one US dollar. - The service is currently focused on smartphones.

Between the lines: - Neptune Venture Studio is positioning keyx as a privacy-first alternative to payment apps that gather more behavioral and social data. - The product framing suggests the company is trying to make stablecoin payments feel more like mainstream money movement than crypto infrastructure. - The launch starts with sending and receiving, while future use cases are expanding toward spending USDC inside the app. - Planned additions include purchases of digital products and access to online payment tools. - Paolo Massari, founder of keyx, said the goal is to make digital dollars simple to use and to treat privacy as a design decision rather than an add-on.

What's next: - Neptune Venture Studio plans to add ways to spend USDC held in keyx. - The company is gradually rolling out support for digital products and online payment tools. - More information about USDC and the service is available on the company's Discover USDC page. - keyx also maintains social accounts on Instagram and X.