MetaMUI has opened a demonstration network allowing banks and payment firms to test post-quantum financial tools without building new wallets or smart contracts, the company says. The company’s platform departs from standard cryptocurrency recovery methods; MetaMUI wallets do not use a seed phrase, instead relying on decentralized identifiers and registered keys.
Institutional funds are secured in a design where no private key exists, requiring signed votes from designated operators to authorize transfers. MetaMUI also released its post-quantum cryptography library under the Apache 2. 0 license, providing tools to protect financial transactions against future quantum computing threats.
MetaMUI Network Enables Testing of Post-Quantum Finance Applications
Financial institutions now have a dedicated environment to evaluate defenses against future quantum computing threats, as MetaMUI has launched a permissioned demonstration network for testing financial applications. The platform allows banks, payment firms and stablecoin issuers to experiment with token issuance, payments, and treasury controls without the need for smart contract development or custom wallet construction. Participants can issue tokens from an administration console and use the built-in M.PQC Wallet to send and receive funds, simulating real-world financial operations under controlled conditions.
This approach allows for key replacement without requiring asset transfers, offering a potentially more streamlined recovery process for users. The system introduces for institutional funds a design where no private key exists, fundamentally altering the traditional key-based security paradigm.
Transfers from these accounts require signed votes from designated operators, each verifying signatures against registered keys before adding their own signatures, with a majority vote triggering the transaction. “The request and each vote are recorded on the chain,” according to the company, ensuring transparency and immutability of the process. Beyond the demonstration network, MetaMUI has also released a cryptography library, offering developers tools to proactively safeguard financial transactions, according to the company.
The library includes portable implementations of algorithms standardized by ML-KEM, ML-DSA, SLH-DSA and FN-DSA, along with algorithms selected in South Korea’s national competition, such as HAETAE, AIMer, SMAUG-T and NTRU+. This library is not limited to use within the MetaMUI ecosystem and can be integrated into systems like VPNs and authentication protocols. Hardware-accelerated versions of the library are available under commercial license, while the core library itself is available under the Apache 2. 0 license.
The demonstration network mirrors the architecture of MetaMUI’s mainnet, which transitioned to signatures on September 13, without requiring users to migrate balances or addresses. Institutions preferring to use their own wallets can use a Wallet SDK licensed under the Business Source License. Participants can also measure settlement finality under their own load, manage identities and keys and test interoperability with connected networks. The company highlights that the network’s design incorporates separation-of-duties controls aligned with SP 800-53 security guidance.
A June 2026 U.S. executive order established deadlines for federal agencies to adopt key establishment by December 31, 2030, and digital signatures by December 31, 2031, while South Korea’s national plan targets 2035. Institutions interested in participating in the demonstration network can apply through the MetaMUI website, with approved applicants gaining access to test scenarios and collaborating directly with the MetaMUI team on integration and customization. The library is available on GitHub, enabling broader access to cryptographic tools.
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