Connect your smart contract to the outside world
Chainlink's decentralized oracle network provides reliable, tamper-proof inputs and outputs for complex smart contracts on any blockchain.
Start building your universally connected smart contract, Highly secure and flexible infrastructure
Reliable, tamper-proof network
Use decentralization, trusted nodes, premium data, and cryptographic proofs to connect highly accurate and available data/APIs to any smart contract.
Seamless connection to any API
Build on a flexible framework that can retrieve data from any API, connect with your existing systems, and integrate with any blockchain, now and in the future.
Proven, time-tested solutions
Integrate battle-hardened and time-tested oracle solutions that secure billions of dollars in value for market-leading blockchain projects.
Transparent oracle computation
Independently monitor and verify Chainlink’s open-source code, the performance of its oracle networks, and the quality of individual node operators.
What is Chainlink?
The industry standard oracle network. Chainlink greatly expands the capabilities of smart contracts by enabling access to real-world data and off-chain computation while maintaining the security and reliability guarantees inherent to blockchain technology.