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Decentralized data feeds for the hybrid smart contract ecosystem

Chainlink Data Feeds provide smart contract developers with access to a secure and reliable source of real-world data to power their unique use cases for DeFi and beyond.

Explore Chainlink Data Feeds

Securing the smart contract ecosystem with decentralized data

Highly decentralized, reliable, and secure infrastructure

Chainlink Data Feeds are powered by networks of independent, highly reputable, and geographically distributed node operators to help ensure high reliability.

High-quality data sources that avoid manipulation

Data is sourced from multiple premium, authenticated APIs that are aggregated into a validated answer, removing any single point of failure.  

Prove your smart contracts' end-to-end security to users  

Sybil-resistant node operators run time-tested and security-audited software that’s been in operation for years, helping secure tens of billions of dollars.

Full transparency through blockchain immutability

Easily verifiable and immutable on-chain data provides users with the ability to audit any Data Feed in real-time through multiple third-party interfaces. 

A well-maintained, accessible, and shared data resource

A constantly expanding open-source community builds and funds Chainlink Data Feeds, establishing long-term viability for your hybrid smart contracts.

Blockchain-agnostic to support smart contracts everywhere

As blockchain-agnostic infrastructure, Chainlink Data Feeds support any and all blockchain networks, updating at the native speed and cost of each chain.

A diverse range of Data Feeds available to hybrid smart contracts

Price and market feeds 

Premium financial market data on cryptocurrencies, commodities, forex, indices, and more, helping actively secure tens of billions of dollars for DeFi applications by providing the accurate market pricing data that users expect.

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Generalized off-chain data

Decentralized data feeds can be deployed to provide smart contracts with access to a secure and reliable source of any off-chain data, including weather events, sports outcomes, and much more. 

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Supported by a collection of the world’s leading data providers

Price and market feeds power a variety of DeFi use cases 

Lending and borrowing

Issue and settle loans, liquidate undercollateralized positions, trigger collateral swaps, and help protect against insolvency.

Mirrored assets

Generate mirrored versions of real-world and on-chain assets using on-chain collateral and Price Feeds as the reference point for minting and redemption.

Stablecoins

Use financial market data to determine the collateralization of stablecoins, automate mint/burn operations, and trigger rebasing functions.

Asset management

Enable the automated management of capital pools and the marking of funds to market by referring to Price Feeds for rebalances.

Options and futures

Power advanced financial instruments and ensure platform solvency by dynamically setting the funding rate and settling agreements. ​

Centralized data sources introduce major risks

Decentralized oracle networks ensure highly reliable market data

1

First, premium data providers aggregate raw price data from a multitude of centralized and decentralized exchanges, accounting for time, volume, and outliers.

2

Next, independent Chainlink nodes fetch market price data from various premium data providers and combine the results into an aggregated value.

3

Lastly, multiple Chainlink nodes aggregate their results together off-chain to generate a tamper-resistant oracle report, which is made available to smart contracts. 

Extensive monitoring of your oracles

Numerous tools built by the ecosystem provide transparency and full visibility for the price feeds and the teams participating in them. This gives you confidence that the feeds are reporting properly at all times.

Market.link DashboardChainlink Data Price Feeds

Need help with your own use case?

Connect your smart contracts to the outside world with generalized off-chain data

Parametric insurance

Aid citizens in both developed and emerging regions through parametric insurance, immediately settled using Weather Data Feeds.

Dynamic sports NFTs

Generate on-chain dynamic NFTs that track the performance of individual players or teams and evolve over time accordingly.

Prediction markets

Empower users with the ability to predict the outcome of any sporting, weather, or political event across the globe with instant market settlement.

Predictive supply chain

Enable companies around the world to adjust their supply chains according to weather data to reduce friction, lower costs, and ensure predictability.

Generalized off-chain data feeds for any data type

Price and market feeds

Chainlink’s high-quality and tamper-proof Data Feeds provide access to the most critical and widely used datasets, such as cryptocurrency price pairs, commodities, and more.

Integrate Data Feeds
Node operators

Review the largest and highest-quality collection of independent and Sybil-resistant node operators, along with the data they provide and their performance metrics.

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Data providers

Directly connect to a data provider’s Chainlink node to build smart contract applications with unique data requirements, such as sports results, weather data, real estate prices, and more.

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Connect to any API

Connect your smart contract application to any API via Chainlink’s request and response model, facilitating interoperability between on-chain and off-chain systems.

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