SEI now has a MiCA-compliant crypto-asset white paper on public record in Europe after OKX Europe notified the document for admission of the token to trading. The filing gives market participants across 30 European Economic Area markets a standardized disclosure covering SEI’s structure, utility, technology and risks, but it does not constitute regulatory approval of the asset.
According to Sei’s official October 21 announcement, the document was prepared and notified by OKX Europe Limited, a crypto-asset service provider licensed by the Malta Financial Services Authority under MiCA. Malta serves as the home Member State, while the notification covers all 27 EU countries plus Iceland, Liechtenstein and Norway.
OKX Europe is identified as the offeror and author of the white paper, while the Sei Foundation is listed as the issuer. The filing concerns SEI’s admission to trading rather than a public token offering, and no funds or crypto-assets are being raised through the notification.
MiCA Filing Creates Disclosure, Not Regulatory Approval
Under MiCA, a party seeking admission to trading for a crypto-asset other than an asset-referenced token or e-money token must prepare, notify and publish a standardized white paper. Competent authorities do not provide prior approval for this category of document, making notification materially different from obtaining an authorization or endorsement for the token itself.
The SEI white paper records a maximum token supply of 10 billion and describes three principal functions: paying network gas fees, delegating tokens to validators through staking and participating in protocol governance. It also classifies SEI as a utility token and states that ownership provides no claim to issuer profits, dividends or assets.
Publication through ESMA’s MiCA register makes those disclosures available in a common European format. The register functions as a transparency mechanism rather than a regulatory seal of quality, allowing exchanges, brokers and institutions to evaluate standardized information while retaining responsibility for their own listing and risk decisions.
The distinction has become increasingly relevant as MiCA implementation reshapes market access for European crypto service providers. A notified white paper satisfies an important disclosure requirement for admission to trading, but it does not guarantee that other European venues will list SEI.
European Access Extends Beyond the MiCA Filing
SEI is already available to European users through platforms including OKX EU and Revolut, according to the Sei Foundation. The new white paper gives those evaluating direct SEI trading a common disclosure reference, rather than creating European availability for the token from scratch.
SEI also has exposure through the CoinShares Sei Staking ETP, which launched in July 2025 and trades on Switzerland’s SIX exchange. That investment product is a physically backed debt security and should not be treated as a consequence of the new MiCA white paper, because regulated securities and native crypto-assets can fall under different legal frameworks.
That separation mirrors a broader distinction emerging in European digital markets. Regulated blockchain securities infrastructure, including DLT trading venues connecting banks with tokenized assets, operates alongside MiCA rather than being governed entirely by it. The legal treatment depends on what the instrument represents, not simply on whether blockchain technology is involved.
For SEI, the immediate milestone is therefore one of standardized disclosure and regulated-market infrastructure. The ESMA record gives European platforms and institutions a formal MiCA reference for evaluating the token while leaving listing decisions, investment demand and actual market adoption to individual venues and participants.