Original Source: Chainlink
October 2025—Chainlink and MegaETH today announced the deployment of the first real-time, on-chain data stream oracle on MegaETH, an unprecedented protocol-level implementation that delivers Chainlink’s trusted market data to the blockchain with sub-millisecond latency.
This integration natively incorporates Chainlink data streams into MegaETH’s execution environment via precompilation, enabling any smart contract to seamlessly access real-time, high-frequency market data. The result is a new foundation for real-time DeFi, allowing applications such as perpetual contracts, prediction markets, and stablecoins to achieve response speed and accuracy comparable to centralized exchanges (CEX), while maintaining full on-chain composability.
Lei, co-founder and CTO of MegaETH, stated: “Integrating Chainlink data streams at the protocol layer provides developers with low-latency, efficient on-chain market data, which is exactly the infrastructure needed to build the next generation of real-time decentralized financial applications.”
This integration introduces a brand-new oracle model that combines the simplicity of traditional on-chain oracles with the immediacy of data streams.
Protocol-level low latency: Chainlink data streams are refreshed instantly when accessed by contracts, eliminating latency mismatches and redundant updates.
Zero integration overhead: Any smart contract can directly read real-time market data from the precompile, without the need to build custom off-chain logic.
Future-oriented data catalog: Chainlink’s extensive network supports multiple asset classes, including crypto assets, equities, commodities, and real-world assets (RWAs). This will make the scalability of high-performance DeFi possible.
The initial deployment focuses on high-frequency crypto assets, establishing a new low-latency standard for on-chain price discovery.
When oracle latency is reduced to single-digit milliseconds and data quality reaches institutional benchmarks, DeFi achieves parity with centralized trading infrastructure, enabling real-time settlement, precise funding rates, and continuously updated derivatives—all secured by Ethereum.
Chainlink is the largest and most trusted data provider in the crypto space. Chainlink oracles have already supported over $25 trillion in transaction volume, secured more than $100 billions in total value locked, and verified over 1.8 billions cross-chain messages.
Chainlink Data Streams is a low-latency oracle solution built by Chainlink specifically for applications requiring high-frequency market data. Data streams are powered by Chainlink’s robust decentralized oracle network (DON), with independent nodes aggregating, verifying, and signing each data report before transmission. This model ensures data integrity while maintaining real-time updates.
With low-latency, native access to Chainlink’s data catalog (covering crypto, equities, commodities, and more), various protocols on MegaETH will gain infrastructure that surpasses the latency execution levels of centralized finance.
Chainlink is the industry-standard oracle platform bringing capital markets on-chain and supporting the majority of decentralized finance (DeFi). The Chainlink technology stack provides the essential data, interoperability, compliance, and privacy standards needed to drive advanced blockchain applications, including institutional tokenized assets, lending, payments, stablecoins, and more. Since inventing the decentralized oracle network, Chainlink has enabled tens of trillions of dollars in transaction value and currently secures the vast majority of DeFi.
MegaETH is the first real-time blockchain, secured by Ethereum and powered by a super-optimized execution environment and heterogeneous architecture. It achieves 10-millisecond block times and streaming throughput of up to 100,000 TPS. Developers can scale applications through real-time state streams, and users can enjoy instant transactions, all while fully retaining Ethereum’s composability.