Build middleware helping foreign apps integrate with Japan's dominant mobile payment platforms. International services struggle with local payment ecosystem complexity.
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Japan's cashless adoption is accelerating but remains dominated by domestic players foreigners can't easily access.
Foreign businesses entering Japan face steep integration challenges with local payment networks like PayPay.
Create an API abstraction layer that handles KYC, compliance, and settlement with major Japanese payment providers through a single integration.
Charge based on transaction volume through the platform.
Start by building the most basic PayPay integration.
Risk: Payment providers may change APIs frequently.
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