> ## Content Index > Fetch the complete content index at: https://blog.fizen.io/llms.txt > Use this file to discover other available public pages before exploring further. # Fizen at Blockchain Open Air Saint Petersburg: Stablecoin Payments for Russians - URL: https://blog.fizen.io/fizen-at-blockchain-open-air-in-saint-petersburg-2025/ - Published: 2025-09-02T08:14:00.000Z - Updated: 2026-09-17T15:06:09.000Z - Description: Fizen at Blockchain Open Air Saint Petersburg: why self-custody stablecoin payments matter for Russian travelers, and the practical guides to paying abroad when your card is blocked. - Author: Fizen Editorial - Tags: Events, #iris, Community, Company **Key takeaways** - Fizen joined Blockchain Open Air, one of Russia's liveliest Web3 festivals, to show a practical use of stablecoins: paying abroad when your bank card does not work. - Russian Visa, Mastercard and MIR cards are not accepted in most countries, so a self-custody digital-dollar wallet is a real fix, not a slogan. - With Fizen you hold your own USDT and pay by QR or Visa card in a trip, without a local bank account. - Below are the practical, country-by-country guides for paying abroad as a Russian traveler. At Blockchain Open Air in Saint Petersburg, one of Russia's most vibrant blockchain festivals, Fizen showed something concrete rather than abstract: how stablecoins solve a real, everyday problem for Russians. When a Russian bank card does not work the moment you leave the country, a self-custody digital-dollar wallet is not a talking point, it is the thing that actually lets you pay. Here is the idea, and where to go next. ## The real problem stablecoins solve here For Russian travelers the pain is simple and specific: Visa and Mastercard from Russian banks do not work abroad, and MIR is accepted only in a handful of countries. That leaves cash and its bad rates, or a workaround. Holding a digital dollar (USDT) that you control, and paying it out by QR or a Visa card that works internationally, closes exactly that gap. ## How Fizen fits Fizen is a self-custody super app: you top up your own USDT balance and pay with it, by scanning QR codes or spending on a Visa card, without opening a local bank account. Because you hold the keys, the balance is yours to move. It is the practical version of what a blockchain festival talks about in theory. ## Where to start if you are traveling The blog has a full set of Russian-language guides for paying abroad: whether the MIR card works in your destination, how to pay in specific countries, and how to handle cash and exchange. Start with the hub and the country guides below. ## Frequently asked questions #### Do Russian bank cards work abroad? Visa and Mastercard issued by Russian banks are not accepted outside Russia, and MIR works only in a few countries. Travelers need cash or an independent payment method like a self-custody stablecoin wallet. #### How can Russians pay abroad without a working card? Hold your own digital dollars (USDT) in a self-custody app like Fizen and pay by QR or Visa card, without a local bank account. See the country guides for specifics. #### What did Fizen show at Blockchain Open Air? A practical use of stablecoins: paying abroad when a Russian card does not work, using a self-custody wallet you control rather than trusting a bank or exchange. **A blockchain festival talks theory.** A blocked card abroad is the practice, and self-custody stablecoins are the fix. ![](https://storage.ghost.io/c/04/ee/04eee3a6-7d95-474c-80a5-48f84338363b/content/images/2026/07/official_appdownload.png) #### Fizen: pay abroad without a local bank Hold your own USDT and pay by QR or Visa card in a trip, without a Russian card or a local bank account. Backed by an investment from Tether. [Download the app](https://link.fizen.io/s/h0ZLhQPrK3?ref=blog.fizen.io) This is general information, not financial advice. Fizen is a self-custody super app: you hold your own keys. Backed by an investment from [Tether](https://tether.io/news/tether-announces-strategic-investment-in-fizen-to-strengthen-global-stablecoin-utilization-and-self-custody-solutions/?ref=blog.fizen.io). ### Terms and conditions - **Information only.** Fizen publishes this article to inform, not to sell. Nothing here is an offer or solicitation, and it is not financial, investment, legal or tax advice. Prices, rules and availability change; check official sources. - **For readers in the United States.** This article provides information only. It is not an offer, solicitation or sale of any product or service, and it is not financial, investment, legal or tax advice. Fizen is not offered to US Persons. - **Full terms.** Master Terms of Use, Privacy Policy and Disclaimer on the Fizen site. ### Related reading - [Fizen for Russians: The Full Guide](https://blog.fizen.io/fizen-super-app-now-speaks-russian-927/) - [Does the MIR Card Work in Vietnam?](https://blog.fizen.io/rabotaet-li-karta-mir-vo-vietname-2026/) - [How Russians Pay in Vietnam](https://blog.fizen.io/kak-platit-vo-vietname-rossiyanam-2026/)