United Stables has chosen blockchain oracle provider Chainlink as the core data and cross‐chain infrastructure for its U stablecoin, after the dollar-pegged token surpassed $1bn (£780m) in circulating supply and more than $2.5bn in daily trading volumes.
The move, announced by United Stables, will see Chainlink’s pricing, reserve-verification and interoperability technology embedded at the heart of U – a stablecoin launched on BNB Chain and Ethereum in December 2025 and now preparing for wider multi-chain expansion.
United Stables said the decision followed an extensive review of security practices across the sector, amid mounting concerns over weaknesses in older oracle systems and cross‐chain bridges that underpin much of decentralised finance (DeFi).
It said fragmented liquidity, opaque pricing and vulnerabilities in moving assets between blockchains were among the main risks it is seeking to mitigate by standardising on Chainlink’s infrastructure.
Chainlink tools go live for pricing and reserves
Under the integration, Chainlink Data Feeds and Chainlink Proof of Reserve are now live for U.
The data feeds deliver decentralised pricing information, which United Stables says already underpins more than 20 lending protocols, helping to ensure that applications using U can reference consistent and tamper-resistant price data.
Chainlink’s Proof of Reserve system allows users and protocols to verify, on-chain, that the collateral backing U exists and matches issuance, using cryptographic checks rather than solely relying on off-chain attestations.
United Stables launched U as a fully backed stablecoin intended for trading, payments, DeFi, institutional settlement and AI-related applications. At launch, the firm said U was backed one-for-one by cash and audited stablecoins, including USDC, USDT and USD1, with reserves held in segregated accounts and verified through on-chain Proof of Reserve and quarterly independent audits.
‘Trust must be cryptographic’
Athena, chief executive officer of United Stables, said the Chainlink partnership is designed to give users, institutions and DeFi platforms continuous transparency over U’s backing and value, while paving the way for secure transfers of the stablecoin across multiple blockchains.
She said the integration enables users, institutional partners and decentralised finance protocols to access verified pricing, independently confirm U’s collateral around the clock, and ultimately move the stablecoin safely between networks.
She added that the company sees cryptographic verification as a foundational requirement for building trust as U expands beyond its initial deployments.
Johann Eid, chief business officer at Chainlink Labs, said the deal will allow United Stables to broaden U’s role across DeFi using Chainlink’s decentralised oracle and interoperability network. He said the platform has been built to support institutional-scale stablecoin activity on multiple blockchains rather than a single chain.
Cross-chain push with CCIP
Beyond the services already in production, United Stables plans to adopt Chainlink’s Cross-Chain Interoperability Protocol (CCIP) to handle transfers of U between blockchains.
The company believes CCIP will simplify the movement of liquidity across supported networks while adding another security layer for interoperability, by replacing a patchwork of bridges with a single, audited system.
The announcement aligns with the roadmap set out when U was first introduced. United Stables has been integrating the stablecoin with DeFi platforms such as PancakeSwap, ListaDAO, Aster and Four.meme, and says it intends to add confidential balance features and AI-focused payment tools using technologies such as EIP‐3009 and delegated transaction execution.
According to United Stables, combining its own liquidity infrastructure with Chainlink’s oracle, reserve-verification and cross-chain products is intended to deliver transparent collateral checks, resilient pricing and future-proof interoperability as U expands across BNB Chain, Ethereum, TRON and other networks.
Chainlink widens footprint from DeFi to banks
The United Stables tie-up adds to Chainlink’s growing role in both crypto-native and traditional financial systems.
CCIP has emerged as one of Chainlink’s flagship interoperability products over the past year. Earlier this month, Aave expanded its use of the protocol, making CCIP the default cross-chain infrastructure across the Aave App and Stable Vaults.
Aave said CCIP now supports token transfers, vault rebalancing, governance execution, deposits, withdrawals and yield optimisation, consolidating functions that previously relied on multiple separate systems. It also powers transfers of Aave’s GHO stablecoin via Chainlink’s Cross-Chain Token standard, while cross‐chain governance decisions are executed using the Aave Delivery Infrastructure, which relies on CCIP to relay approved actions from Ethereum to other networks.
Security remains central to CCIP’s architecture. According to Aave, every “bridge lane” is operated by at least 16 independent node operators distributed across different firms and regions, and built‐in rate limits cap the value that can move under abnormal conditions.
Chainlink has also been advancing into bank-led and traditional market infrastructure. In June, it joined Project Pangea, a bank-backed initiative testing stablecoin-based foreign exchange settlement between Europe and South Korea. The project involves FairSquareLab, UniKA and Qivalis, representing more than 50 banks with over $10tn in assets under management, and uses Chainlink technology alongside ISO 20022 messaging and existing SWIFT systems to trial atomic payment-versus-payment settlement in compliant euro and South Korean won stablecoins.
In January, crypto derivatives exchange BitMEX said it would use Chainlink Data Streams to price its planned Equity Perpetuals, enabling perpetual contracts linked to stocks and exchange-traded funds to be backed by continuously updated market data from multiple sources.
United Stables’ move suggests major stablecoin issuers increasingly see such oracle and interoperability infrastructure as critical to scaling safely across a fragmented blockchain landscape.
