Link is a ERC20 token on the ethereum blockchain. It is used to pay ChainLink node operators for data retrieval management and distribution. Link token is mainly used on the ChainLink decentralized oracle network. ChainLink is one of the most secure oracle network. It operates as a decentralized network meaning it is not owned by a company or private entity. It allows data to APIs that operate with smart contract. Link is available for trading on several exchanges. Link token is traded with Bitcoin, in LINK/BTC trading pair on LATOKEN.