Four Regulated Financial Institutions Choose OP Stack Across Global Markets

**Optimism partners with Toss to explore blockchain-based finance in South Korea** Toss, the financial super-app used by over 30 million South Koreans (two-thirds of the population), has signed an MOU with Optimism to test putting the Korean Won onchain. **Key details:** - Three-month proof of concept launching with Optimism, PrivacyBoost, and Toss - Testing a Won-backed stablecoin built on the OP Stack - Focus on meeting Korea's compliance, privacy, and control requirements - Toss handles banking, payments, investing, credit, and taxes for users The pilot will determine whether money can settle onchain while maintaining regulatory standards. If successful, this could establish the OP Stack as infrastructure for compliant digital finance at national scale. [Read the full announcement](https://optimism.io/blog/two-thirds-of-south-korea-runs-its-money-through-toss-now-toss-is-exploring-putting-the-won) | [Cointelegraph coverage](https://cointelegraph.com/news/south-korea-toss-partners-optimism-won-stablecoins)

OP Mainnet has become the infrastructure backbone for ether.fi's neobank card program, meeting three critical requirements: - **Real-time authorization** for card swipes - **Low transaction fees** that preserve yield economics - **Stability during payment spikes** The platform currently supports ether.fi's operations with $220M in total value locked, 70,000 active cards, and 300,000 accounts. Transaction costs remain at fractions of a cent, enabling the business model to scale profitably. Daily spending continues to reach new highs following the migration to OP Mainnet.

Optimism has introduced **OP Enterprise**, a managed blockchain infrastructure service designed specifically for businesses. The core premise is simple: different businesses require infrastructure tailored to their specific needs rather than one-size-fits-all solutions. **Key features include:** - Production-grade managed infrastructure - Businesses retain ownership of their blockchain - Companies keep their revenue - Enterprise-level guarantees Karl Floersch and Ben Jones discussed the rationale behind OP Enterprise on the Blockworks Empire podcast with Jason Yanowitz. The service addresses a critical issue: enterprises currently build on platforms that capture the value they create, rather than allowing businesses to retain that value themselves. OP Enterprise represents Optimism's move into providing dedicated blockchain solutions for corporate clients who need reliable, scalable infrastructure without sacrificing control or revenue.

Optimism has launched **OP Enterprise**, a new blockchain solution designed specifically for business applications. The platform aims to provide organizations with: - Fast transaction processing - Stable performance - Scalable infrastructure built on Ethereum This initiative represents Optimism's push to bring enterprise-grade blockchain capabilities to businesses looking to leverage Ethereum's ecosystem while meeting corporate requirements for reliability and performance. For technical details and implementation information, visit the official announcement at [optimism.io/blog/what-is-op-enterprise](https://optimism.io/blog/what-is-op-enterprise)