ECB and EBA want MiCA to ban stablecoin yield and vet DeFi protocols, Aave's Kulechov says

"They are not only advocating for a prohibition on paying yield on stablecoins, but also for restrictions on CASPs providing access to DeFi," Kulechov wrote on X on October 2 ^[9][1]. Every detail of the two regulators' positions in this story comes through his account ^[1].

Taken as he describes them, the asks cover two routes to the same return. The ban on yield paid on stablecoins would go beyond MiCA's existing limits ^[2] and removes the direct return. The access limits reach the indirect route, a regulated provider connecting a customer to a protocol that generates returns on stablecoins MiCA has not authorized ^[3]. That leaves an authorized stablecoin lent into a protocol. Even that route would pass through suitability tests confining DeFi access to selected categories of users ^[5]. It might also pass through a certification system for decentralized lending protocols ^[6].

So on Kulechov's own description, the submissions narrow EU providers' access to DeFi yield without closing it, or rather, they hand the decision about which protocols qualify to public authorities ^[8]. The evidence supports gating. It does not show a full cutoff.

The Commission's review can go three ways. It could adopt the package as described, and Kulechov's prediction for that case is more walled gardens that weaken the liquidity and network effects open systems depend on ^[8]. A second path takes the yield ban and drops certification. The third takes little of either. Aave Labs argued for something close to that in a late-September submission seeking clearer treatment of lending returns and room for non-custodial protocols ^[13].

I think the second path is the likeliest. A yield ban is one rule with nothing to administer. Certification needs a body to rate protocols against criteria, and by Kulechov's account the regulators only raised it as a possibility ^[6]. He also says they have not set out a workable description of how access should operate ^[4], and that it is not clear how either requirement could be applied in practice ^[7]. The counter-case is that Kulechov has a stake. His firm filed its own submission weeks earlier ^[13], and the ECB and EBA present their proposals as consumer protection ^[10]. I am wrong if the Commission's draft names a body to certify lending protocols and the criteria it would use.

Providers would pay first. A CASP barred from paying yield on the stablecoin, and required to test each customer before routing them to DeFi, has to decide whether the product is worth building at all. Kulechov's prescription is aimed at incumbents. He argued that banks and established firms should adjust their models to serve customers in an economy moving onchain, instead of depending on artificial barriers that raise costs and cut access ^[12]. He also said the SEC and CFTC have lately taken a more pragmatic stance toward onchain innovation ^[11].