One regulation, one license, twenty-seven markets
Before MiCA (the Markets in Crypto-Assets Regulation), a crypto firm operating in the EU faced a patchwork: Germany treated tokens one way, France another, and some member states had no clear crypto licensing regime at all. MiCA replaced that patchwork with a single EU-wide framework that entered into force in phases through 2024, with the bulk of its provisions, including CASP licensing, applying from December 2024. It's the first comprehensive attempt by a major economic bloc to regulate crypto-assets as their own category, rather than forcing them into securities or e-money law that wasn't written with them in mind.
The core mechanic that makes MiCA matter commercially is passporting. A firm that gets authorized as a Crypto-Asset Service Provider (CASP) in one EU member state, say, obtaining its license from a national regulator like Ireland's or France's, can then offer those licensed services across all other member states without separately re-applying in each one. That's a huge deal: it turns 27 separate regulatory relationships into effectively one. It also means the choice of which national regulator to license through becomes a real strategic decision, since some regulators are perceived as faster or more crypto-literate than others.