IMPORTANT: This post provides a practical glossary of MiCA concepts based on the information available at the time of publication. Currently, any analysis of cryptoassets, ART, EMT, CASP, white papers, the European passport, custody, asset segregation, capital requirements, market abuse, claims, or supervision must be reviewed on a case-by-case basis, the MiCA Regulation, the technical regulations and guidelines issued by ESMA and EBA, the current forms and criteria of the CNMV, and the practical developments in administrative supervision within the European Union.
Why do you need to understand MiCA right now?
The European regulatory landscape has taken a definitive turn. What until recently was a crypto ecosystem marked by regulatory uncertainty is now transforming into a binding legal framework.
This change affects token issuers, exchanges, custodians, and any project operating with crypto-assets in the European Union. The MiCA Regulation is not a simple directive that Member States can interpret freely.
It is a directly applicable regulation. It is already changing the way companies develop their business models.
Why is mastering the MiCA glossary crucial?
If your project has European ambitions, mastering the language of MiCA is no longer optional. In practice, those who understand these concepts will not only avoid sanctions.
- Attract institutional investment
- Access banking services
- Build reputation in the crypto sector
This glossary brings together the 25 key terms that any founder, CFO, legal advisor, or compliance officer must master before 2026.
It is not about memorizing technical definitions. It is about understanding how these concepts impact your daily operations, regulatory obligations, and growth strategy.
MiCA: the new European standard that changes the rules of the game
The Regulation on Markets in Crypto-Assets, known as MiCA (Markets in Crypto-Assets), represents the first comprehensive regulatory framework of the European Union.
Main characteristics of the MiCA Regulation
What distinguishes MiCA from other regulations is its horizontal approach. It is not limited to regulating a single type of asset or service.
It covers everything from stablecoins to trading platforms. For an overview, you can review our Simple Guide to the MiCA Regulation
What MiCA means for crypto companies
Companies must adopt standards comparable to those of the traditional financial sector: transparency, corporate governance, capital requirements, audits, etc.
The 25 essential terms of the MiCA glossary
1. Crypto-Asset
MiCA defines a crypto-asset as a digital representation of value or rights that can be transferred or stored electronically using DLT technology.
More details at ESMA.
What is excluded?
- MiFID II financial instruments
- Bank deposits
- Traditional electronic money
2. Asset-Referenced Token (ART)
ARTs maintain a stable value by referencing multiple assets.
Issuer obligations
- Prior authorization
- Adequate reserves
- Robust corporate governance
3. E-Money Token (EMT)
An EMT is linked to a single fiat currency. Only authorized institutions may issue them. See guidelines at the EBA.
4. Crypto-Asset Service Provider (CASP)
A CASP is any professional provider of crypto-asset services. If you operate an exchange or custodian, this category applies to you.
See our internal article: How to obtain a CASP license in the EU.
5. Crypto-asset white paper
Mandatory document with technical, financial, and risk information. Basis for civil liability of the issuer.
6. Public offer of crypto-assets
Includes any communication inviting the acquisition of tokens. Triggers transparency and white paper obligations.
7. Admission to trading
Process required to list a token on a European platform. Exchanges act as a regulatory filter.
8. Crypto-asset custodian
CASPs responsible for custody of private keys. Require insurance, own funds, and asset segregation.
9. Trading platform
Multilateral systems that enable the buying and selling of crypto-assets. Require transparency and abuse prevention.
10. Reserve of assets
Funds backing ARTs and EMTs. Must be secure, liquid, and audited.
Key operational terms of the MiCA glossary
11. Competent authority
National supervisory bodies such as CNMV and Banco de España. See the list at ESMA.
12. Notification
Procedure to inform the authority about white papers or issuances.
13. European passport
Allows operation throughout the EU with a single CASP license.
14. Conflict of interest
CASPs must identify and manage conflicts between their own interests and those of clients.
15. Own funds
Mandatory minimum capital. Ranges between €50,000 and €150,000 depending on activity.
16. Asset segregation
Strict separation between CASP assets and client assets.
17. Market abuse prevention
Includes prohibition of insider trading and market manipulation.
18. Ongoing information
Obligation to report any material fact affecting the token.
19. Public offer exemption
Applies in cases of small offers or those directed at qualified investors.
20. Stablecoin white paper
Specific white paper for ARTs and EMTs, with enhanced requirements.
Advanced concepts of the MiCA glossary
21. Corporate governance
Requires competent bodies, audit, compliance, and risk management.
22. Business continuity plan
Plans to respond to technical failures or cyberattacks.
23. Complaint procedure
Transparent and free complaint management systems.
24. Reserve audit
Independent annual audits and publication of results.
25. Significant token
Systemically relevant tokens supervised by the EBA.
Preguntas frecuentes sobre MiCA y sus conceptos clave
¿Qué es MiCA?
MiCA es el Reglamento europeo sobre mercados de criptoactivos. Establece un marco común para emisores, plataformas y proveedores de servicios cripto dentro de la Unión Europea.
¿Qué se entiende por criptoactivo?
Un criptoactivo es una representación digital de valor o de derechos que puede transferirse y almacenarse electrónicamente mediante tecnología de registro distribuido u otra tecnología similar.
¿Qué es un CASP?
Un CASP es un proveedor de servicios de criptoactivos. Puede prestar servicios como custodia, intercambio, ejecución de órdenes, transferencia de criptoactivos o asesoramiento sobre activos digitales.
¿Qué es un token referenciado a activos?
Un token referenciado a activos, o ART, es un criptoactivo que busca mantener un valor estable tomando como referencia una o varias monedas, materias primas, criptoactivos u otros activos.
¿Qué es un token de dinero electrónico?
Un token de dinero electrónico, o EMT, es un criptoactivo que pretende mantener un valor estable tomando como referencia una moneda oficial, como el euro o el dólar.
¿Qué es el white paper de criptoactivos?
El white paper es el documento informativo que describe el proyecto, el criptoactivo, los derechos asociados, los riesgos y la información relevante para potenciales adquirentes o inversores.
¿Qué significa pasaporte europeo MiCA?
El pasaporte europeo permite que un proveedor autorizado en un Estado miembro pueda prestar servicios en otros países de la Unión Europea, siguiendo el procedimiento previsto por MiCA.
¿Qué implica la segregación de activos?
La segregación de activos exige separar los criptoactivos de los clientes de los activos propios del proveedor. Es una medida importante para proteger a los usuarios y evitar confusiones patrimoniales.
¿Qué es la prevención de abuso de mercado en MiCA?
La prevención de abuso de mercado busca evitar prácticas como la manipulación de precios, el uso indebido de información privilegiada o conductas que alteren artificialmente el mercado de criptoactivos.
¿Por qué es importante conocer el glosario MiCA?
Conocer los conceptos básicos de MiCA ayuda a identificar obligaciones regulatorias, comprender riesgos legales y preparar mejor la adaptación de empresas, plataformas e inversores al nuevo marco europeo de criptoactivos.
How can IN DIEM Abogados help in this process?
Mastering the theory is only the beginning. Implementing it correctly requires legal and technical experts. We invite you to learn about our Legal Services for Adaptation to the MiCA Regulation
Additionally, we have specialized technical support thanks to Cryptoveritas 360 in areas such as:
- Asset segregation
- On-chain traceability
- Technical audits
- Custody infrastructure
IN DIEM Abogados advises and represents companies before the CNMV, drafts the necessary legal documentation, and coordinates technical review with Cryptoveritas 360 to ensure comprehensive compliance.
Our firm offers comprehensive advice in all areas related to crypto-assets and blockchain, including:
- Law and Cryptocurrencies: We provide legal advice on Bitcoin, altcoins, ICOs, NFTs, and blockchain-based projects, ensuring legal compliance from the creation through the operation of any cryptoasset.
- Crypto Tax and Legal Services: We offer expert guidance on the taxation of cryptocurrency investments, buying and selling transactions, staking, DeFi, and airdrops, ensuring compliance with current regulations.
- Registration and Compliance with the Bank of Spain: We guide cryptocurrency exchange and custody platforms through the registration and regulatory compliance process, ensuring safe and legal operations.
- MiCA Compliance: We help crypto companies comply with the new European regulation, covering everything from obtaining licenses to implementing anti-money laundering (AML) policies, consumer protection measures, and compliance audits.
- Scams on Cryptocurrency Web Platforms. Criminal Law: We offer legal defense and recovery strategies for cases involving fraud or scams on exchanges, wallets, or any digital investment platform.
In an increasingly complex and competitive regulatory environment, having a firm that understands both technology and law is key to minimizing risks and seizing opportunities. In Diem Abogados, in collaboration with its technology partner Cryptoveritas 360, does not only advise: it accompanies, implements, and ensures that your crypto company complies with regulations, integrates secure technological solutions, and thrives in the digital ecosystem.
IN DIEM Abogados, cryptocurrency experts at your service
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