COTI Foundation has officially launched the COTI Privacy Portal, a web application that allows users to convert public tokens into private ones with a single click, and Band Protocol has simultaneously expanded its oracle services to provide reliable price feeds for the portal’s assets. The dual announcement marks a significant step for privacy-focused decentralized finance (DeFi).
The Privacy Portal is a non-custodial, fully on-chain solution that integrates with MetaMask via the COTI MetaMask Snap. Users can transform public tokens—such as wETH, USDT, wBTC, USDC.e, wADA, gCOTI, and COTI itself—into their encrypted ERC-20 equivalents. The process is bidirectional: Portal In encrypts balances on-chain, visible only to the holder, while Portal Out restores them to public form. Private keys never leave the user’s wallet. The underlying technology is COTI’s Garbled Circuits, which conceal transaction details yet leave audits possible on the network’s block explorer. A one-time AES key is generated during Snap setup and never shared with third parties.
Fees are exclusively in COTI tokens. For Portal In, the cost is the greater of 10 COTI or 0.05% of the transaction value, capped at 3,000 COTI; for Portal Out, it is 3 COTI or 0.025%, capped at 1,500 COTI. This tiered structure aims to make privacy affordable for both small users and institutions.
Band Protocol’s integration ensures that each token in the portal—$COTI, $gCOTI, $USDT, $USDC, $ADA, $ETH, and $BTC—has access to manipulation-resistant, real-time market data. Band sources prices from multiple independent providers globally, reinforcing the portal’s transparency and reliability. This development is expected to attract traders, developers, and institutions seeking compliant but confidential DeFi tools, and solidifies the long-term partnership between COTI and Band.
