OKX has merged its euro and EURC markets into a single order book for users in the European Economic Area (EEA). In the new OKX EURC order book, orders priced in euros and orders priced in Circle’s euro stablecoin meet in the same pool. The exchange’s help page on the EEA EURC order book, published on 11 October 2026, says eligible users can convert euros to EURC “at a 1:1 rate”. Circle confirmed the service on 21 October, according to DeFiprime, and Crypto Briefing reported the launch the same day.
What OKX has not published counts for almost as much. The FAQ names no country, gives no fee amount, carries no start date and offers no figure for the volume or depth of the merged book. It says the feature is open “to eligible OKX users in all supported EEA jurisdictions” and that availability “may vary by region and change over time”, without saying who counts as eligible.
The change arrives while EU supervisors are squeezing stablecoins that lack MiCA authorisation off licensed platforms. On 8 October the European Securities and Markets Authority (ESMA) said licensed platforms should stop offering services on such tokens and gave national supervisors three months to have remaining client positions cleared, which runs to 8 January 2027, as we reported in our piece on ESMA’s deadline for non-MiCA stablecoins. Neither OKX nor Circle has tied the order book to that opinion, and Coindaro found no source that does.
How the OKX EURC order book works: one queue for EUR and EURC
The help page puts it in one line: “OKX is launching a unified EUR order book that includes EURC.” Supported markets quoted in euros and in EURC no longer run as two separate markets with their own buyers and sellers. They share one book. A trader chooses EUR or EURC in the trading screen, on the website or in the app, and can settle in whichever of the two they hold.
Conversion between the two runs at a fixed 1:1 rate. That is a price, not a promise that the operation is free. “Standard trading fees may apply based on your fee tier and the transaction you complete,” the FAQ says, adding that the applicable fees are shown before a user confirms a conversion or a trade. OKX publishes no specific fee for the EUR to EURC conversion on that page.
The plumbing is not new. According to Crypto Briefing, OKX had already launched a unified USD order book and already supported EURC deposits, trading and withdrawals. DeFiprime reports that the euro book reuses the routing engine built for that dollar version. What is new is the merging of the two euro venues, not the arrival of EURC on OKX.
OKX says the set-up “creates the deepest liquidity available for EURC anywhere in the market”, as quoted by Crypto Briefing. The exchange gave no depth, spread or volume figure to support that claim, and Coinfomania, whose report was republished by cryptonews.net on 22 October, notes that EURC trading volume is not reported.
Erald Ghoos, chief executive of OKX Europe, framed it as a currency question. “Customers who manage their finances in euros should be able to trade crypto in that currency,” he told Fintech Schweiz, which published his comments on 22 October. Bringing the two together, he said, gives them more flexibility. Like the FAQ, the interview names no countries, fees or volumes.
Why one euro order book matters for traders in the EEA
Split markets are a quiet cost. When bitcoin trades against the euro in one book and against EURC in another, each book holds only part of the orders. Thinner books tend to mean wider gaps between the best bid and the best offer, and a large order eats through more price levels before it is filled. Putting both quote currencies in one queue gives every order the same set of counterparties.
There is also the detour it removes. A euro holder who wanted to trade on-chain dollars had to pass through a dollar stablecoin such as USDT or USDC, with a currency conversion on the way in and another on the way out. With euros and EURC on one book, someone who thinks in euros can stay in euros, in cash or in token form, from deposit to withdrawal.
Whether spreads on OKX’s euro pairs actually narrow cannot be checked from the outside yet. OKX has published no before-and-after figures, and the merge is too recent for independent data to have caught up.
EURC, the euro stablecoin Circle issues under MiCA
EURC is issued by Circle Internet Financial Europe SAS, an electronic money institution authorised by France’s ACPR, the banking supervisor attached to the Banque de France. Under MiCA it is classed as an e-money token (EMT), the category for stablecoins pegged to a single official currency, and its reserves are covered by monthly attestations, DeFiprime reports.
MiCA lets only banks and electronic money institutions issue such tokens to the public in the EU, and it gives holders a claim on the issuer at face value. Our guide to the MiCA regulation explains the categories and who supervises what.
Circle’s MiCA redemption policy names OKX as one of the exchanges where EURC can be bought and sold, according to DeFiprime. Redeeming directly with Circle is a separate route with its own conditions: identity checks, an EEA IBAN and a SEPA-enabled bank account, with payment in “no more than 5 business days”, the same report says. Selling EURC for euros on an exchange and withdrawing them is the other way out.
The euro stablecoin market is still small. On DefiLlama data that Coindaro pulled at 10:57 UTC on 19 October, the nine largest euro-pegged tokens had a combined circulating supply of about €815 million, with Circle’s EURC at about €492 million of that. Dollar-pegged tokens totalled about $306 billion at the same time, which puts the euro side at roughly 0.3% of the dollar one. A bank-backed rival is being prepared, but it has no live token yet, as we explained in our report on Qivalis and its Dutch licence.
ESMA’s 8 January 2027 limit for non-MiCA stablecoins
The ESMA opinion of 8 October is addressed primarily to national supervisors, under the article of ESMA’s founding regulation that lets it issue opinions to align supervisory practice. It names no token. In ESMA’s view, licensed crypto-asset service providers should not offer EU clients services linked to asset-referenced tokens or e-money tokens that do not meet MiCA’s requirements. They should put in place “technical, contractual and organisational controls” that stop clients acquiring or increasing positions in those tokens, and supervisors should make sure they do.
Where supervisors find legacy positions, they should require them to be cleared “as soon as possible and no later than three (3) months” after the opinion’s publication, according to the text of the opinion. ESMA gives no calendar date; counted from 8 October, the limit falls on 8 January 2027. In the meantime supervisors may allow only time-limited residual services: liquidation, conversion, withdrawal, transfer or safekeeping of existing holdings. It is ESMA’s second push on the subject. A statement of 17 January 2025 had set the end of the first quarter of 2025 as a deadline for restricting non-compliant tokens, and on 30 September 2026, in its response to the Commission’s MiCA review, ESMA asked for the regulation itself to be amended so that licensed firms cannot provide such services at all.
Exchanges are drawing up their own lists. Coinbase told EEA clients that USDT and PYUSD are non-compliant and asked them to withdraw affected balances by 30 October 2026, with what remains to be converted into USDC or another asset, Cointelegraph reported, as relayed by Cointribune. That conversion may be taxable in some countries. Tether has no MiCA authorisation for USDT and has indicated it does not intend to apply for one, Crypto Briefing reported on 8 October.
Under the opinion, MiCA-compliant tokens such as EURC and USDC are the stablecoins a licensed platform can keep offering without a wind-down. Whether OKX is removing USDT pairs for its EEA users is not stated in its EURC FAQ or in any report Coindaro found. The FAQ went up three days after ESMA’s opinion; the timing alone shows nothing about cause.
| Date | Event | Source |
|---|---|---|
| 17 January 2025 | ESMA statement on non-compliant stablecoins, deadline end of Q1 2025 | ESMA |
| 27 January 2025 | Malta’s MFSA authorises OKX Europe Limited under MiCA | ESMA register |
| 18 February 2025 | OKX says it serves 28 EEA countries from its Malta hub | OKX release |
| 30 September 2026 | ESMA asks the Commission to write the ban into MiCA | ESMA |
| 8 October 2026 | ESMA opinion: wind down non-MiCA stablecoin services | ESMA |
| 11 October 2026 | OKX publishes its EEA EURC order book FAQ | OKX |
| 21 October 2026 | Launch reported; Circle confirms the service | Crypto Briefing, DeFiprime |
| 30 October 2026 | Coinbase deadline for EEA clients to withdraw USDT and PYUSD | Cointelegraph via Cointribune |
| 8 January 2027 | Three months after ESMA’s opinion: outer limit to clear existing positions | ESMA (date calculated) |
OKX’s MiCA licence and the entity behind the euro book
ESMA’s register of crypto-asset service providers lists OKX Europe Limited as authorised by the Malta Financial Services Authority on 27 January 2025. In a release dated 18 February 2025, OKX said it was offering regulated services in 28 EEA countries through its Malta hub. The register now lists 29 host countries for that entity, Iceland and Norway among them. The help page does not say which OKX entity runs the merged book. OKX Europe Limited is the obvious candidate, as the group’s MiCA-licensed arm, but OKX has not said so for this feature. Our OKX review covers the exchange’s products and fees in more detail.
What an EEA user can do with EUR and EURC on OKX now
For now, the practical steps come from the FAQ and from Circle’s published redemption terms:
- Open the trading screen on the web or in the app and check whether the EUR or EURC choice appears for your account, since OKX says availability varies by region.
- Read the fee displayed before confirming a conversion or a trade, because the 1:1 rate does not include it and the FAQ gives no amount.
- To get back to a bank account, sell EURC for euros on the exchange and withdraw, or redeem with Circle directly after identity checks, using an EEA IBAN and a SEPA account.
- If you hold USDT or PYUSD on any EEA platform, read its notices: Coinbase set 30 October, and ESMA’s outer limit is 8 January 2027.
Tax is the other variable. On 16 October, French MPs adopted by 38 votes to 37, at first reading, an amendment to the 2027 budget that would make swaps of crypto into e-money tokens such as EURC and USDC taxable from 1 January 2027. It is not law, the vote on that part of the budget has been postponed, and the measure can still be dropped, as explained in our report on the French stablecoin tax vote. Italy already treats a blockchain, dove gli utenti scambiano token direttamente dal proprio wallet senza affidare la custodia dei fondi a una società.">swap from a crypto-asset into an e-money token as taxable, under the Agenzia delle Entrate’s Circolare 30/E of 27 October 2023, the same report notes. Coindaro has not checked how a plain conversion of euros into EURC is treated in each country.
Countries, fees and volume: what OKX still has to publish
Several facts are missing from everything OKX and Circle have said so far:
- The list of EEA countries where the merged book is live, and what makes a user eligible.
- The date the book went live; the FAQ has none, and press reports date the announcement to 21 October.
- Any fee specific to the EUR to EURC conversion.
- The depth, spread or daily volume of the merged book, which would test OKX’s liquidity claim.
- Whether USDT pairs for EEA users will be withdrawn ahead of ESMA’s limit.
The next dates are outside OKX’s control. Coinbase’s USDT cut-off falls on 30 October, the French budget bill still has to clear the National Assembly and the Senate, and ESMA’s outer limit for all licensed platforms runs out on 8 January 2027.