How Deblock is building Europe’s first Onchain Bank

Deblock is the first fully regulated (MiCA compliant) onchain bank to merge a Euro current account with a Visa debit card and a non-custodial crypto wallet. Users can hold euros, spend with a card, manage 100+ crypto-assets in self-custody, and access DeFi yield vaults without restrictions or lock-in, all within a single secure environment.

Launched in 2024, Deblock has grown rapidly to serve more than 300,000 customers across Europe and is backed by €60 million in funding. To ensure that its crypto services meet the strict standards of the banking sector, Deblock relies on the CoinGecko API for bank-grade market data and real-time crypto asset prices.

Key statistics at a glance

Deblock leverages CoinGecko API to power accurate real-time valuations and stream live sub-second price updates for over 100+ crypto-assets within its regulated banking app interface.

This trusted data infrastructure enables Deblock’s 300,000+ users to securely deposit crypto directly alongside their fiat accounts.

Since integrating CoinGecko API to power its core conversion functions, Deblock has successfully processed hundreds of millions of euros across its euro-to-crypto and crypto-to-euro exchange pairs.

The challenge: Ensuring bank-grade accuracy in volatile crypto markets

Building a regulated bank that natively supports crypto requires bridging two fundamentally different systems. While fiat banking relies on stability and precise ledgers, crypto markets are volatile and operate 24/7.

Deblock faced the technical challenge of integrating these separate ecosystems into a cohesive platform. Users expect their crypto balance to be as accurate and accessible as their Euro checking account. To meet this expectation, the team needed a high-fidelity crypto market data solution that ensures real-time accuracy, enabling them to maintain the operational excellence of a fully regulated institution.

Why chose Unblock CoinGecko API

Deblock chose CoinGecko API to power its crypto pricing infrastructure because it provides the granular historical data and extensive asset coverage needed to match the speed and accuracy of traditional banking. As the world’s most trusted crypto data authority, CoinGecko delivers reliable real-time prices across a vast array of tokens, enabling Deblock to seamlessly connect everyday banking with the crypto economy. This ensures that users can trust that the displayed portfolio values ​​are accurate.

How Unblock CoinGecko leverages API

To ensure users have instant visibility into market movements, Deblock uses CoinGecko’s WebSocket API (specifically the CGSimplePrice channel). It streams sub-second price updates directly to the app interface, allowing users to stay abreast of real-time price movements for Bitcoin and other assets before making decisions.

Deblock also relies heavily on CoinGecko API’s /coins/{id} endpoint, which serves as the core data source for presenting real-time price valuations across over 100 supported assets. This endpoint drives price data for Deblock’s balance calculations, portfolio visualizations and euro-crypto conversions, ensuring that valuations remain accurate regardless of the crypto-asset, chain or market conditions.

CoinGecko API’s price data powers Deblock’s exchange feature, which provides real-time crypto asset valuations for accurate euro-to-crypto and crypto-to-euro conversions.

Business and User Outcomes

Since integrating CoinGecko API, Deblock has provided its 300,000+ users with real-time price data for over 100+ cryptoassets within its regulated onchain banking ecosystem. With accurate pricing from the world’s most trusted crypto market authority, users confidently deposit and manage onchain assets on Deblock’s platform directly alongside their fiat accounts. This trust has also led to strong engagement in Deblock’s most popular feature, the euro-to-crypto and crypto-to-euro swaps, which have generated hundreds of millions in total swap volume to date, with users consistently praising the feature’s simplicity and reliability.

What’s next on the road map?

Deblock is focused on advancing its vision to become the first fully onchain bank, supported by an ambitious product roadmap aimed at deepening the integration between fiat accounts and onchain functionality. Over the next year, the team plans to expand availability to additional regions as it brings its services to more European markets.

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This article was written in collaboration with Deblock team.