Japan’s largest domestic card and payments network, JCB, has signed a memorandum of understanding with Circle to explore the use of USDC in cross-border payments and merchant transactions. The agreement focuses first on technical trials for internal fund transfers, while also testing whether stablecoin payments can work at retail locations for international visitors.
JCB and Circle said the initial work will include a proof of concept for using USDC for JCB’s internal cross-border movement of funds. They will also evaluate stablecoin checkout options for merchants in Japan and examine technical approaches aimed at enabling interoperability across multiple blockchain networks. The partners did not outline a timeline for any commercial rollout.
Key takeaways
- JCB and Circle will begin with a proof of concept for using USDC for JCB’s internal cross-border fund transfers.
- The memorandum also targets merchant payments in Japan for international visitors, alongside research into blockchain interoperability.
- JCB’s stablecoin push follows an earlier January initiative with Digital Garage and Resona Holdings focused on domestic store payments.
- Stablecoin payment experimentation in Japan is expanding alongside the country’s broader regulatory reforms that began taking shape in 2023.
From internal transfers to merchant payments
The memorandum of understanding is structured around two near-term lines of inquiry. First, JCB and Circle plan to test how USDC could support cross-border settlement for JCB’s own operational needs—initially framed as internal transfers. In practical terms, this kind of trial is aimed at reducing friction in cross-border movement by using a stablecoin designed to maintain a link to the US dollar.
Second, the partners intend to assess whether stablecoins can be used at the point of sale. The emphasis on merchants in Japan—specifically for international visitors—suggests the project is not only about settlement infrastructure, but also about the customer-facing experience and the operational steps required for merchants to accept payments.
Alongside these payment use cases, JCB and Circle said they will evaluate interoperability-related technologies across multiple blockchain networks. That focus matters because stablecoin liquidity and settlement paths can differ depending on the chain and infrastructure used. Interoperability research, if it bears fruit, could lower the cost and complexity of connecting payment flows to different token and network ecosystems.
Building on Japan’s earlier stablecoin experiments
This new Circle partnership builds on momentum that JCB already set earlier this year. In January, JCB launched a separate stablecoin payment test with Digital Garage and Resona Holdings, aimed at trialing stablecoin payments at physical stores in Japan. That earlier initiative was described as an effort to identify technical and operational challenges of enabling stablecoin payments for domestic merchants.
What changes with the Circle memorandum is the scope and framing. While the January work centered on domestic store payment trials and problem discovery, the USDC-focused agreement adds a cross-border dimension and introduces a broader look at interoperability and potential infrastructure applications beyond the first proof of concept.
Importantly, both JCB and Circle stopped short of providing a timeline for commercial deployment. For investors and builders, that signals the project may still be in the validation stage—useful for gauging feasibility, but not yet a commitment to near-term production systems.
Why USDC is a natural candidate for cross-border trials
Circle’s USDC is among the most widely used dollar-backed stablecoins. According to DefiLlama data cited in the original reporting, USDC is the world’s second-largest stablecoin by market capitalization, with a circulating supply of about $73 billion—behind Tether’s USDT at roughly $184 billion.
That market footprint matters for payments pilots because it can support the practical goal of ensuring that stablecoins used for settlement have sufficient liquidity and infrastructure connectivity. While JCB and Circle did not specify which blockchain networks would be involved in the initial cross-border proof of concept, they did indicate they would evaluate technologies for interoperable settlement across networks—an area where USDC’s ecosystem presence may be a key advantage.
Japan’s stablecoin payment push and the regulatory backdrop
The JCB–Circle memorandum arrives as Japan continues to expand stablecoin-related payment experimentation. Earlier this year, reporting indicated that Circle and Nomura were working on a stablecoin-based foreign exchange settlement service for Japanese companies. The concept described in that coverage focused on enabling businesses to convert yen into USDC for cross-border transactions and aiming for near-instant settlement.
Other projects in Japan also point to a broader industry effort to test stablecoin rails across different commercial settings. On Monday, convenience store operator Lawson announced plans to pilot yen-denominated stablecoin payments at a Tokyo location starting in August. Separately, Netstars launched a merchant payment service supporting USDC, USDT, and JPYC, with availability across Solana and Polygon.
Behind these trials is Japan’s legal and policy direction. Japan was among the first major economies to build a stablecoin framework: amendments to the Payment Services Act took effect in 2023, allowing banks, trust companies, and licensed money transfer providers to issue fiat-backed tokens. That regulatory foundation is a key reason pilots can progress from experimental concepts toward implementations that involve regulated participants.
Japan is also moving through wider digital asset reforms. In June, the Lower House passed a bill that would classify crypto assets as financial instruments, a change that could set the stage for additional oversight and market-structure reforms, including bringing more of the sector under stricter rules. While that legislation is not itself a stablecoin payment initiative, it forms part of the same macro trend: regulators seeking clearer definitions and guardrails for token-based finance.
What to watch next
For now, JCB and Circle are positioning their agreement around proofs of concept—internal cross-border fund transfers and merchant acceptance trials—without committing to a launch date. The most important signals to follow are technical: whether interoperability work reduces friction across networks and whether merchant pilots demonstrate operational readiness for real-world payments beyond internal settlement.
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