Chainlink Data Streams Officially Launch on Sei, Becoming the Preferred Oracle Infrastructure Empowering Institutional-Grade Tokenization and Real-Time Markets

2025-09-11 17:28

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Chainlink Data Streams support sub-second price delays, high-precision data, high-fidelity RWA data, and liquidity-weighted average price deltas among other key features. Built on the Chainlink platform, it has already supported over $25 trillion in on-chain transaction volume, providing applications with high availability and reliability guarantees.

The Sei Development Foundation and Chainlink have announced today that Chainlink Data Streams have gone live on the Sei mainnet, serving as the preferred oracle infrastructure for the Sei Network, providing the Sei ecosystem with secure, reliable, and verifiable on-chain data feeds.

The integration of Chainlink Data Streams into Sei as a low-latency oracle solution is due to its ability to leverage Chainlink's proven infrastructure to deliver high-frequency, premium market data. It not only brings unparalleled features (such as liquidity-weighted price feeds and sub-millisecond execution times) but also emphasizes transparency and decentralization.

The timing of this integration is particularly crucial, as institutional adoption of blockchain infrastructure is accelerating. In addition to providing industry-leading institutional-grade price data, Chainlink has recently partnered with the U.S. Department of Commerce to bring data from the Bureau of Economic Analysis (BEA) onto the Sei Network, including U.S. real GDP, PCE price index, and domestic purchase indicators.

This marks a significant turning point where blockchain as a critical financial infrastructure receives government endorsement. With federal macroeconomic data flowing directly into on-chain markets, the combination of Chainlink's institutional-grade oracle network and Sei's sub-millisecond settlement capability places the entire ecosystem at the forefront of a new era: one where traditional financial data intersects with high-performance blockchain infrastructure, unlocking unprecedented trading opportunities and institutional-grade use cases.

“We are very excited to see Chainlink Data Streams integrated into Sei, signaling the expansion of Chainlink's footprint into a rapidly growing ecosystem supporting the next generation of DeFi protocols and institutional-grade applications. With Data Streams available on Sei, developers will have a robust foundation to build innovative on-chain products, accelerating ecosystem adoption and growth.”

—Thodoris Karakostas, Director of Blockchain and Product Integration at Chainlink Labs

Sei is a high-performance layer-one public chain that supports EVM compatibility, parallel execution, high throughput, and sub-second finality. The combination of Sei's performance with Chainlink's security sets a solid foundation for the sustainable growth of DeFi, gaming, and consumer-grade applications.

Reliable Chainlink Data Streams enable applications deployed on Sei (such as DeFi lending, trading, and derivatives) to access secure, low-latency data, ensuring accurate pricing and reducing risk. Developers and data consumers alike benefit from the secure data integrity provided by Chainlink.

With Chainlink Data Streams integrated on Sei, secure DeFi markets deployed on this Layer 1 public chain can utilize an on-demand high-frequency market data solution backed by decentralized, transparent infrastructure. Chainlink Data Streams support a range of key features, including:

· Sub-second Price Latency: Leveraging battle-tested oracle infrastructure, Chainlink Data Streams provide sub-second data transmission, delivering high-performance user experience without sacrificing decentralization and transparency.

· High-Precision Data: Providing reliable, low-latency price data highly consistent with benchmark exchanges, enhancing user confidence and protocol performance.

· High-Fidelity RWA Data: Capturing deeper market data in each report, supporting inclusion of more topics, such as company behavior data in recently launched Stock and ETF Data Streams.

· Liquidity-Weighted Bid-Ask Spreads: Beyond a single price point, Data Streams offer liquidity-weighted bid-ask spreads to help protocols optimize risk management parameters and more accurately reflect market liquidity.

· Proven Infrastructure and High Availability: Built on the Chainlink platform, with years of security, ultra-reliability, and high-quality data, supporting over $25 trillion in on-chain transaction volume. Data Streams provide robust availability and stability guarantees for applications.

“Chainlink Data Streams have become the preferred oracle infrastructure for Sei, bringing highly accurate and reliable price information to the Sei ecosystem. The ultra-low latency market data transmission of Data Streams, coupled with its battle-tested infrastructure, makes it the best choice for the Sei ecosystem.”

——Justin Barlow, Executive Director, Sei Development Foundation

About Chainlink

Chainlink is the industry-standard oracle platform bringing real-world data on-chain and powering the majority of decentralized finance (DeFi). Chainlink provides the key data, interoperability, compliance, and privacy standards needed for cutting-edge blockchain use cases, spanning institutional tokenized assets, lending, payments, stablecoins, and more. Since the inception of decentralized oracle networks, Chainlink has secured trillions of dollars in transaction value and now safeguards the vast majority of DeFi protocols.

Many of the world's top financial services firms have adopted Chainlink's standards and infrastructure, including Swift, Euroclear, Mastercard, Fidelity International, UBS, ANZ Bank, as well as top protocols like Aave, GMX, and Lido. Chainlink employs a unique fee model: converting on-chain and off-chain revenue from enterprise adoption into LINK tokens and placing them into a strategic reserve. For more information, please visit chain.link.

About Sei Network

Sei is a Layer 1 public chain designed for fast, low-cost financial transactions, combining Ethereum's security and reliability with Solana's performance. Sei has processed billions of transactions, covering over 60 million wallets, and has become the most actively used EVM public chain. The team behind Sei is backed by top investors such as Multicoin, Jump, Coinbase Ventures, Circle Ventures, and others.