Chainlink Data Streams Go Live on Sei as Institutions Eye Onchain Infrastructure

Chainlink Labs and the Sei Development Foundation said Thursday that Chainlink Data Streams are now live on the Sei Network, making Chainlink the preferred oracle provider for the Layer 1 blockchain. The rollout underscores how traditional financial data and high-performance blockchains are beginning to intersect, with implications for trading, lending, and institutional adoption.

The integration gives Sei access to Chainlink’s low-latency, high-frequency market data — including liquidity-weighted bid-ask spreads and sub-second execution — delivered through decentralized infrastructure. The timing coincides with a broader push by financial institutions and regulators to bring real-world data onto blockchain rails.

Chainlink’s recent partnership with the U.S. Department of Commerce means macroeconomic indicators such as GDP, inflation, and consumer spending will now be available directly onchain for Sei users. The move reflects what backers call a turning point: government-validated data flowing into decentralized markets. Combined with Sei’s sub-second settlement times, the pairing could enable new products ranging from institutional-grade DeFi derivatives to tokenized real-world assets.

“Integrating Chainlink Data Streams into Sei expands Chainlink’s reach into a fast-growing ecosystem that’s purpose-built for next-gen DeFi and institutional use cases,” said Thodoris Karakostas, director of blockchain and product partnerships at Chainlink Labs.

Chainlink’s infrastructure already secures more than $25 trillion in onchain transaction value for protocols including Aave, GMX, and Lido. Its enterprise relationships span Swift, Euroclear, Mastercard, and Fidelity International, among others. Revenue from such integrations is converted into LINK tokens and held in the Chainlink Reserve, giving the company a hybrid model that ties traditional enterprise demand to crypto-native tokenomics.

For Sei, the deal represents another step in differentiating itself among high-performance chains. The blockchain, which boasts EVM compatibility, parallel execution, and sub-second finality, has processed billions of transactions across more than 60 million wallets, making it one of the most active Ethereum-compatible networks. Backers include Multicoin, Jump, Coinbase Ventures, and Circle Ventures.

Justin Barlow, executive director at the Sei Development Foundation, called Chainlink’s infrastructure “the obvious choice” for powering Sei’s ecosystem. “Ultra-low-latency market data, coupled with proven reliability, makes it the right fit for the next phase of growth,” he said.

The partnership highlights a growing race among blockchains to secure trusted data feeds. For Sei, bringing Chainlink’s high-fidelity market data — from equities and ETFs to corporate actions — onto its platform could unlock a new wave of DeFi activity, from lending markets to structured products, while giving developers confidence in pricing accuracy and uptime.