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Chainlink enables smart contracts on any blockchain to leverage extensive offchain resources, such as tamper-proof price data, verifiable randomness, automation functions, external APIs, and much more.
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Connect your smart contract to real world data
Connect your smart contract to to real world data
Smart contracts are inherently disconnected
Blockchains are highly secure and reliable networks for value exchange but lack the functionality to natively fetch external data or send data to offchain systems in a manner that retains end-to-end tamper-resistance.
Chainlink connects smart contracts to the real world
Through the use of secure oracles, Chainlink extends the functionality of blockchains by connecting smart contracts to real-world data, events, payments, and offchain computation in a highly tamper-resistant and reliable manner.
Case studies
Secure oracle networks powering offchain data and services for any smart contract
End-to-end decentralization
Use decentralized oracle networks made up of independent and Sybil-resistant nodes for high availability and manipulation resistance.
Provably secure nodes
Provide cryptographic proof of the oracle networks' overall integrity as every piece of data is digitally signed by nodes and stored onchain.
High-quality data
Access any password-protected or authenticated API data source, redundantly validated by multiple nodes to prevent any single points of failure.
Crypto-economic security
Leverage provably secure nodes that are economically incentivized to deliver accurate results onchain.
Defense in depth
Apply multiple layers of security such as cryptographic signatures, trusted execution environments, zero-knowledge proofs, and more.
Open-source community
Improve network security and accelerate development through ongoing contributions from node operators, developers, researchers, security auditors, and more.
Blockchain agnostic
Connect to all leading public and private blockchain environments from a single framework, providing a universal abstraction level for cross-network connectivity.
Offchain computation
Combine onchain infrastructure with cost-efficient and reliable offchain computation to create feature-rich decentralized applications in the form of hybrid smart contracts.
The most reliable oracle network in DeFi
Chainlink Price Feeds provide critical financial market data required to issue, settle, and secure a wide array of DeFi applications
The Chainlink Network supports a multitude of price and data feeds live in production, securing tens of billions in value for many leading DeFi applications, CeFi companies, and various other financial institutions.
Learn more about DeFiView Chainlink Data Feeds
A leading source of onchain randomness
Chainlink VRF generates reliable randomness used to mint NFTs, distribute random rewards, and power unpredictable gameplay scenarios
Chainlink Verifiable Random Function (VRF) provides numerous blockchain games with a cryptographically secure and provably fair source of onchain randomness (RNG), giving users a strong guarantee of application impartiality.
Learn more about Chainlink VRFStart using randomness
Decentralized and reliable smart contract automation
Chainlink Automation enable smart contract developers to outsource the triggering of smart contract functions to a decentralized network of nodes.
The Chainlink Automation network monitors smart contracts and performs offchain computations to determine when onchain functions need to be called, providing a decentralized transaction automation service.
Learn more about Chainlink Automation
Connect your smart contract to real-world data and events
Chainlink decentralized oracle networks allow developers to connect their smart contracts to any offchain data resource or computation
Chainlink’s ability to connect with any API and perform any offchain computation opens up a wide variety of use cases, such as Arbol using Chainlink for weather data to create weather risk products and Theta Network leveraging Chainlink for viewership data to fight ad fraud for online content.
Learn more
Easy blockchain adoption for enterprises
Chainlink provides enterprises and governments with numerous ways to leverage the benefits of blockchain technology without rearchitecting their current systems.
Secure your existing systems
Automate the backend of business processes to remove counterparty risk and reduce dependencies on third parties.
Increase transparency for users
Incorporate decentralized data inputs to provide your users with superior guarantees about the execution of key services.
Connect to any blockchain
Use a single software to connect your existing systems to any current or future blockchain environment.
Monetize your current APIs
Sell your data and API services directly to smart contract applications to expand your addressable market.
Chainlink for Enterprises
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A comprehensive set of resources to empower developers
Seamless integration
Implement Chainlink into your existing tech stack with minimal effort and time.
Simple documentation
Up-to-date documentation and guides, simplifying the developer experience and minimizing friction.
Dedicated support
Our support channels are available around the clock to provide you with a path to answers, whenever needed.
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