S2 • E21 EthCC Series Apr 06, 2026 38 MIN

Onramps, stablecoins & regulations

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This market is crowded, and trust is starting to separate serious players from the rest, especially with onboarding solutions. We talked about MiCA as part of that shift, a cleaner rulebook for companies trying to build real infrastructure, at a time when fraud is getting smarter across both TradFi and crypto.

Key takeaways

  • Mercuryo builds fiat-to-crypto on- and off-ramps for wallets and exchanges, with the goal of being a Stripe for crypto.
  • Both guests came from traditional finance: Ashna from Starling Bank and Arthur from investment banking as part of Mercuryo's founding team.
  • Holding a European license from its early days gave Mercuryo a head start when most crypto firms had weak compliance.
  • Ashna sees MiCA as a trust-builder, and says Mercuryo fights AI-driven fraud with its own AI tools and in-app user education.
  • The Mercuryo Spend card, built with Mastercard, lets users spend from self-custodial wallets without Mercuryo holding their assets.
  • Mercuryo Pro offers an OTC process for purchases above 50K, first piloted with Ledger.

Moving money between banks and stablecoins

Recorded at EthCC in Cannes, this Hodl Up episode features Arthur and Ashna from Mercuryo, the first guests of the team's EthCC run. Arthur leads enterprise and corporate development, and Ashna oversees customer operations, from support and success to integrations and finance.

Arthur summed up the business simply: "Our business is basically moving money between banks and stablecoins." The conversation covers MiCA, fraud in the AI era, why partners choose Mercuryo, where stablecoins are heading, the Mercuryo Spend card, Mercuryo Pro and the company's biggest challenges.

From TradFi to crypto infrastructure

Ashna joined Mercuryo just over four years before this recording after working at Starling Bank, giving her experience in regulated finance as crypto itself becomes more regulated. Arthur came from an investment banking firm and joined Mercuryo's founding team roughly seven years ago.

In the near term, Ashna said the focus is improving conversion and success rates for on- and off-ramping, while building a strong regulatory team ahead of MiCA.

MiCA, fraud and trust

Why MiCA helps

Ashna called MiCA a positive step. "The crypto industry is changing so fast that it's not so much about efficiency anymore; it's about trust." She said it protects end users and builds trust with institutions.

Arthur agreed and noted how fragmented licensing used to be. With a unified standard, founders in Europe may now start through strategic partners such as banks, neobanks or payment firms like Mercuryo instead of licensing from scratch. He expects regulatory arbitrage to continue, noting that "innovators should innovate."

Fighting AI with AI

On fraud, Ashna was direct. "Essentially, we're fighting AI with AI." Bad actors use AI bots, and Mercuryo counters with its own AI tools. She named user education as the top priority, with warnings built into the product flow.

Why partners choose Mercuryo

Arthur said Mercuryo's early European license was its moat. Around 2019 and 2020, the team went directly to exchanges and wallets and captured much of that market. Today, startups can use Mercuryo instead of spending time and money on their own license, while regulated enterprises need a partner that meets their standards.

On stablecoins, he said yield products mostly track treasury rates and are declining, while the stronger trend is settlement. "Mercuryo settles with most of our partners in stablecoins; that's been our day-to-day routine for the last seven years." Ashna highlighted strong stablecoin volumes in Africa and Latin America and expects everyday stablecoin purchases to feel normal within one to three years.

The table below summarizes Mercuryo's main products as the guests described them.

ProductWhat it doesWho it serves
On- and off-rampsConverts between fiat and crypto inside partner appsWallets, exchanges and their users
Mercuryo Spend cardMastercard card for spending from self-custodial walletsCrypto users who want everyday spending
Mercuryo ProOTC purchases above 50K with dedicated supportHigh-net-worth users, first on Ledger
Stablecoin settlementSettles with partners in stablecoinsPartners and financial institutions

The Mercuryo Spend card

Mercuryo has worked with Mastercard for about seven years, first indirectly through banks and providers. After surveying partners and users, it launched the card as an extension of its off-ramp. Users keep funds in self-custodial wallets, and "we don't hold any user assets," Arthur said. Existing Mercuryo users are already verified and have high limits.

Ashna pointed to 24/7 support as a key difference. "If you run into an issue at 2 a.m. while paying at a checkout or a bar, you have support if you need it." Arthur said future plans include premium perks similar to Amex or Revolut Ultra, such as lounges and eSIMs, inside self-custodial wallets.

Mercuryo Pro and the challenges ahead

Mercuryo Pro guides users through OTC purchases above 50K, and Ledger was one of its first pilot partners. Ashna named regulation as the main challenge: "staying ahead of the curve" on licenses and rule changes. Arthur described balancing the existing business with new opportunities from large financial institutions entering crypto. "Honestly, there's never been a better time to be in this space."

FAQ

Frequently asked questions

What does Mercuryo do?

Mercuryo provides fiat-to-crypto on-ramps and off-ramps that wallets and exchanges embed in their apps. It also offers the Mercuryo Spend card for self-custodial wallets, Mercuryo Pro for large OTC purchases, and stablecoin settlement for partners and financial institutions.

Is the Mercuryo card self-custodial?

Yes. The Mercuryo Spend card, issued with Mastercard, lets users spend from their own self-custodial wallets. Mercuryo does not hold user assets, and users who already use its on- and off-ramps are pre-verified with high limits.

What is Mercuryo Pro?

Mercuryo Pro is an over-the-counter service for crypto purchases above 50K. It gives high-net-worth users a guided, dedicated process, and Ledger was one of its first pilot partners. It is also available on Mercuryo's own site.

Is MiCA good for crypto companies?

Mercuryo's Ashna says yes. She argues MiCA builds trust with users and institutions and protects consumers. Arthur adds that a unified EU framework replaces fragmented national rules, though licensing still takes time and money for new startups.

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