Mysten Labs Unveils Tessera, a B2B Settlement Prototype With Private Amounts on Sui

In a recent update, Sui announced that Mysten Labs has introduced Tessera, an enterprise-facing B2B settlement prototype. The project is built on a combination of Seal MPC and Sui's private transfer technology. Its stated goal is to solve a problem that has long kept business settlements off-chain: most blockchains make transaction amounts visible to everyone. Tessera operates through an internal corporate network, and only members that have completed KYC verification can join. Within this network, participants settle invoices using a privacy-enabled stablecoin. The system records the payer, payee, and payment time on-chain, but the actual transaction amount remains hidden. In addition, the level of detail available to each viewer is not the same; the two parties to a transaction, competitors, and regulators are given different access ranges, depending on the viewer's relationship to the transaction. The relevant code has been open-sourced. Since Tessera is still a prototype, it is not yet a production-ready settlement service. The open-source release provides an early look at how Sui-based private settlement between companies might work in practice. The original announcement was shared by Sui.