Karta: Crypto Card in Telegram

You hold crypto, but you cannot pay with it in an ordinary shop. Karta tries to close that gap: a wallet and a card in one Telegram mini app. You top up with crypto and spend wherever cards are accepted. 💳

The project's slogan says one wallet for every payment, anywhere. It sounds convenient, so it matters to understand how it works and what it costs.

What the app includes

The bot's description lists three main things. They are shown in the welcome message and open after you press "Start".

• Virtual and physical cards. Virtual is for online payments, physical for shops and ATMs.
• Bank transfers and local payments. You can move money between a crypto account and ordinary banks.
• Self-custody wallet. By the project's statement, the keys stay with you.

Check the list of payment methods and availability in your country inside the app, because both depend on rules and partners.

How it usually works

Crypto cards share one design: you move digital money to a balance, and the service converts it into the payment currency at the moment of purchase. The merchant receives ordinary money and does not even know about crypto.

Before a card is issued, identity verification is almost always required. That is a requirement of anti-money-laundering laws, not a whim of the service. Prepare your documents in advance. 📄

Where the fees hide

The main catch of crypto cards is not in the ads but in the small print. Fees for issuing, converting, cash withdrawals, transfers and maintenance are counted separately.

Figures differ between review sites, and so do user reviews. So rely only on the tariffs inside the app as of today. Run a worked example: how much is actually charged for a 100 dollar purchase made in another currency. 🔎

Self-custody: benefits and responsibility

A self-custody wallet means access is decided by a key or a seed phrase. Nobody, including the service, can restore it for you.

Lose the phrase and you lose the money. Save it as a screenshot or in the cloud and you risk a stranger finding it. Keep it on paper in a safe place and show it to nobody. 🔐

1. Start with a small amount and make a trial purchase.
2. See how fees are charged using your own example.
3. Learn the terms for refunds and for blocking a card.
4. Do not keep everything on the card: top up for upcoming spending.

Legality and limits

Rules for crypto cards differ by country. In some places they are allowed, in others restricted, and you must work out taxes on operations yourself.

If you plan to use the card for purchases abroad or for earning, check local law. Direct questions about the service to the support inside the app, not to strangers in private messages.