Kima Integrates Mastercard’s Sandbox for Real-Time Stablecoin Payments

Kima Network, a globally known cross-ecosystem money transfer protocol, has integrated with the Mastercard Sandbox. This integration enables the real-time stablecoin top-ups to prepaid Mastercard cards directly from self-custody crypto wallets. The collaboration allows users to load cards with stablecoins such as USDC and USDT from over 10 supported blockchains.

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This system allows users to instantly access their funds at over 200,000 ATMs and millions of merchants in more than 200 countries. The integration leverages Kima’s SDK to support decentralized, compliant transactions, providing a new method of converting digital assets into usable funds for everyday purchases.

Kima Ensures Decentralized Settlement Without Intermediaries

Kima’s infrastructure eliminates the need for custodians and smart contracts by enabling direct peer-to-peer financial transfers. This model supports cross-ecosystem settlement between blockchain wallets and traditional banking institutions without introducing additional layers of complexity.

As part of Mastercard’s Innovation Lab, Kima has worked with a prepaid card issuer to launch a stablecoin-powered solution inside the Mastercard Sandbox-as-a-Service platform. This setup supports seamless onboarding and facilitates secure, compliant stablecoin settlements at scale.

The SDK supports multiple blockchains and stablecoins, allowing easy integration with fintech apps and financial platforms. It also includes modules for AI agents, DeFi platforms, and wallet services to improve service providers.

Broader Reach for Banks and Fintech Providers

Kima Network has expanded access to a network of financial institutions, regulators, and technology partners through its collaboration with Mastercard. This ecosystem aims to help traditional banking platforms adopt blockchain-based infrastructure while maintaining regulatory compliance and operational efficiency.

A notable implementation includes a project with Pai, a prepaid card issuer, that utilized Kima’s SDK to enable real-time card funding from crypto wallets. The system supports AML/KYC compliance and significantly lowers processing costs, offering advantages to both users and issuers.

This integration demonstrates Mastercard’s ongoing efforts to support stablecoin applications that function across retail and institutional environments. The partnership is designed to transform stablecoins from speculative assets into everyday payment tools, increasing their accessibility and practical utility in global finance.