Confidential Transfers on Sui: Now in Public Beta

Sui Foundation

• 3 min read
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Confidential Transfers on Sui: Now in Public Beta

Main Takeaways

  • With confidential transfers, balances and transfer amounts can be kept confidential onchain, while senders, receivers, and auditability remain visible and enforceable
  • Asset issuers control how sensitive data is accessed. Exchanges, analytics providers, and regulators can all continue to operate within familiar compliance workflows
  • Confidential transfers on Sui are live in public beta, with Bridge exploring the integration as a stablecoin issuer and payments platform, and TRM Labs and Merkle Science among the first partners exploring compliance and blockchain analytics integrations. Contact us if you are building in this space and want to provide feedback.

Any payment provider, stablecoin issuer, or treasury team can tell you that to move real financial workflows onchain, they can't expose their flows. Balances reveal strategy. Transaction sizes reveal commercial relationships. Public visibility isn't a minor inconvenience. It's a structural barrier.

And it's not limited to institutions. Everyday payment activity also carries sensitive financial information. Exposing balances, payment amounts, and transaction history by default is not how modern financial systems are designed to operate.

Full anonymity, however, doesn't solve any of these problems. Financial systems require compliance, auditability, and the ability for action when required. What's missing from onchain payments isn't opacity but control, with data that isn’t exposed by default, but remains accessible in limited capacity when required.

Confidential transfers on Sui, now in beta, is built on that principle.

A model that fits how finance actually works

Confidential transfers let asset issuers enable a confidential mode for their tokens, where balances and transfer amounts are not publicly visible onchain. But the system doesn’t break the structure that financial systems depend on.

  • Sender and receiver remain visible 
  • Issuers define how sensitive data can be accessed and under what conditions 
  • Analytics providers continue to support monitoring and investigation workflows
  • Exchanges can process deposits and withdrawals with the signals they need, even when amounts aren’t public 
  • When confidential data needs to be accessed, whether for compliance reviews or regulatory requests, it happens through scoped, authorized, and auditable processes

This mirrors how financial systems handle sensitive data today, allowing confidential transfers to fit existing financial workflows while retaining the benefits of operating on a public chain. Public and confidential transfers coexist, so issuers and applications can apply the right level of visibility depending on the context.

Confidentiality without breaking the system

Working with payment providers, stablecoin issuers, analytics firms, exchanges, and regulators, we have been told one thing consistently: confidentiality is required, but not at the cost of breaking everything else.

Confidential transfers on Sui are designed around controlled visibility; no single platform or application layer has automatic access to all confidential activity on the network, unless there is a specific legal or compliance need. It is enforced at the protocol level with clear separation of roles. Issuers define policy. Analytics providers support compliance workflows. Applications don’t get privileged access. When sensitive data needs to be accessed, the process is deliberate — tied to a specific purpose, authorized by the right party, and fully auditable. 

This fits into existing financial systems rather than disrupting them. Exchanges operate with familiar risk and compliance models. Analytics providers surface risk signals without revealing confidential data. Regulators and law enforcement workflows can operate through structured access and auditable processes. 

We’re collaborating with Bridge to explore how confidential financial flows could fit within stablecoin ecosystems and the associated technical, compliance, and operational considerations. TRM Labs and Merkle Science are also working with us to explore how risk scoring, monitoring, and investigations can function within this model. The goal is to support compliance workflows and meaningful risk signals without requiring public visibility into financial activity. 

The ecosystem doesn't need to fragment to support a more practical data model for finance.

What this unlocks for payments and financial infrastructure

With confidential transfers, a set of workflows difficult to support on public blockchains become viable. Payments can happen without exposing balances or transaction sizes. Treasury and internal fund movement no longer reveal operational details. Businesses can transact without broadcasting sensitive financial details. Stablecoin issuers can support enterprise and institutional use cases, and comply with their legal and compliance obligations, without forcing every transaction into full transparency.

At the same time, exchanges can support these flows without losing the ability to manage risk and compliance, and regulators and law enforcement can operate through controlled access to relevant data when required.

For financial systems to move onchain at scale, decentralized infrastructure needs to support the confidentiality, compliance, and interoperability requirements that financial activity already depends on today, while making those systems faster, cheaper, and more programmable. 

Public beta

Confidential transfers is now available in public beta on Devnet, with a Testnet launch targeted later this year. Whether you’re an issuer enabling confidential mode, a developer building payment flows, or a partner exploring compliance, exchange, and analytics workflows — the open source code, documentation, and example integrations including link to a prototype wallet are all in the following repo:

👉 https://github.com/MystenLabs/confidential-transfers

We’re actively working with partners across payments, infrastructure, analytics, and exchanges. If you’re building in this space, we’d love your feedback.