Wiki
Reference guides that start from zero and assume no crypto background. Updated as products and regulations change.
Stablecoins 101: What They Are and How They Work
What a stablecoin is, the mechanism holding the peg, how USDT, USDC, DAI, PYUSD and USDe genuinely differ, and the risks the marketing leaves out.
Blockchain Basics for Stablecoin Users
The blockchain concepts that actually cost you money: gas, networks, confirmations and finality, plus why Ethereum now beats Tron for a USDT transfer.
The Complete Guide to Crypto Cards
How a crypto-funded Visa or Mastercard works, who really issues it, the full fee stack behind the '0 fees' headline, and how to judge if one suits you.
How Card Authorization Works: A Practical Walkthrough
What happens in the two seconds after you tap: the five parties, the ISO 8583 message, why holds appear, why cards decline, where crypto cards fit.
Cross-Border Payments: A Complete Guide
Bank wires, Wise, remittance apps and stablecoins compared on real cost. Where the fee hides, why 'zero fee' isn't, and how to pick a route.
Stablecoin Regulation Around the World
The rules deciding which stablecoins your app can list and which cards serve your country: the US GENIUS Act, the EU's MiCA, and Hong Kong's regime.
Stablecoin and Crypto Card Glossary: 55 Terms Defined
55 terms from the two vocabularies a stablecoin card sits between — gas, finality, peg, interchange, MCC, 3DS, spread, e-money — each in a sentence or two.