Mercari Announces New Crypto Trading Feature via Coincheck Integration, Adding 12 New Tokens

On June 8, Mercoin—a subsidiary of Mercari—and Coincheck jointly announced a new feature for their crypto asset trading service.

The new feature adds 12 additional crypto assets, including Avalanche (AVAX) and Shiba Inu (SHIB) handled by Coincheck, to the three tokens already tradable on the Mercari app. Specifically, users will be able to trade crypto assets with Coincheck as the counterparty through Mercoin's brokerage. To use this service, users must apply for a linked Coincheck account via the Mercari app.

This feature is being rolled out as part of a business alliance agreement signed between Mercoin and Coincheck in August 2025. Applications for the service will become available in phases starting June 8.

While Coincheck currently supports 35 tokens, Mercoin has previously only allowed the buying and selling of three: Bitcoin (BTC), Ethereum (ETH), and Ripple (XRP). This new feature effectively expands the lineup of tradable assets significantly.

At a press conference, Keita Nakamura, Representative Director and CEO of Mercoin, commented on the addition of the new feature:

"We want to upgrade the user experience to the next stage. Adding tokens is not just about increasing the numbers; it is a major expansion that deepens our customers' experience."

He added,"Together with Coincheck, we will upgrade this into an experience that makes users want to hold more assets, aiming to truly integrate crypto assets into society."

Tomoyuki Isaka, Executive Director and Vice President of Coincheck, revealed that this initiative was made possible through "Crypto as a Service (CaaS)," a new business model leveraging the expertise Coincheck has built up over the years.

Under Coincheck's CaaS framework, businesses can integrate crypto asset trading into their own apps via API linkage. Isaka explained that this allows for a faster rollout compared to building a system from scratch. The initiative anticipates an increasing number of companies entering the crypto-related sector following the enforcement of the crypto asset intermediary business regulations in June.

Isaka expressed his ambitions, stating:

"This partnership with Mercoin leveraging CaaS will be a massive milestone for the industry. First and foremost, we want to launch this as a service that users can navigate safely and securely."

Regarding the background of the partnership, both companies stated during a talk session following the press conference that "their visions aligned."

Looking ahead, both companies noted:

"This initiative is strictly just getting us to the starting line. We want to shape this into something that makes holding crypto assets even more exciting."

According to Nakamura, although this new feature is a collaboration between two crypto asset exchange operators, it adopts a business model based on a crypto asset intermediary structure. Consequently, in the event of incidents such as data breaches or asset leaks, compensation and response measures will, in principle, be handled by Coincheck.

Image: Iolite

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