The Chainlink network provides reliable tamper-proof inputs and outputs for complex smart contracts on any blockchain.
Providing Access to Data, Payments and Many Other API Services
https://medium.com/chainlink/chainlink-an-overview-and-our-focus-14f03335b803
LINK token usage The ChainLink network utilizes the LINK token** to pay ChainLink Node operators for the retrieval of data from off-chain data feeds, formatting of data into blockchain readable formats, off-chain computation, and uptime guarantees they provide as operators. In order for a smart contract on networks like Ethereum to use a ChainLink node, they will need to pay their chosen ChainLink Node Operator using LINK tokens, with prices being set by the node operator based on demand for the off-chain resource their ChainLink provides, and the supply of other similar resources. The LINK token is an ERC20 token, with the additional ERC223 “transfer and call” functionality of transfer(address,uint256,bytes), allowing tokens to be received and processed by contracts within a single transaction.
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Launch your own ChainLink
Any developer can quickly build and launch their own Chainlink, selling any API to smart contracts -
Partner with ChainLink
Larger enterprises can partner with us to offer any existing APIs for purchase by smart contracts.