Polygon adds private stablecoin payments with KYT and audits

Polygon rolled out a private stablecoin payment feature on Sunday that lets users route transactions through a shielded pool. The feature is part of an integration with privacy protocol Hinkal and uses zero-knowledge proofs to allow onchain verification without exposing amounts or counterparties on the public ledger.

Polygon built compliance controls into the transaction path. Each private payment runs through Know Your Transaction screening before execution. Hinkal’s documentation says users can generate audit files to provide transaction details to tax officials or regulators when required. Polygon described privacy as “opacity to the market, not opacity to regulators.”

The company positioned the capability toward institutional users, saying many banks and treasury teams will not place large operational flows on a ledger that publishes every counterparty and amount. A Polygon community lead using the name Smokey wrote on X, “For onchain payments to go mainstream, businesses need privacy. Not ‘hide from regulators’ privacy. Operational privacy.”

Technically, the shielded pool conceals transfer amounts and counterparties while zero-knowledge proofs let the network verify that transactions are valid without revealing the concealed data. Polygon and Hinkal say the system preserves auditability so compliance teams and regulators can verify required information.

The announcement follows other privacy-focused developments in the sector. On April 24, the layer-1 network Aptos launched a Confidential APT product that uses zero-knowledge proofs to conceal transfer details. Stablecoin activity on Polygon reached $3.6 billion in market capitalization on April 10, making it the eighth-largest chain by stablecoin market cap based on onchain tracking.

Polygon emphasized that private transactions are not intended to obscure activity from law enforcement or tax authorities. The company linked rising institutional interest in stablecoins to the passage last July of the GENIUS Act. On the same day as Polygon’s announcement, Western Union launched a USD-pegged stablecoin on Solana.

Polygon said the combination of shielded pools, zero-knowledge proofs, KYT screening and audit-file generation is designed to give institutions operational privacy onchain while retaining options for regulatory reporting and oversight.