Toss, Optimism, Sunnyside Labs pilot won stablecoin

Toss, Optimism, and Sunnyside Labs are piloting a Korean won-pegged stablecoin using OP Stack and Privacy Boost, focusing on compliance, privacy, and blockchain-based payments.

Toss, a leading South Korean fintech platform, has joined forces with Optimism and Sunnyside Labs to launch a three-month proof-of-concept for a Korean won-pegged stablecoin. This initiative will assess whether Optimism’s OP Stack and Sunnyside Labs’ Privacy Boost technology can deliver a compliant, secure, and scalable blockchain-based financial infrastructure tailored to the Korean market. The project will examine if financial institutions can directly manage payment and settlement processes, enforce regulatory requirements such as KYC and AML, and safeguard sensitive transaction data on a public blockchain. This collaboration aims to determine the feasibility of integrating a won-denominated stablecoin into South Korea’s digital financial ecosystem, potentially enabling local-currency settlements and bridging traditional payment systems with blockchain technology.