Chainlink Price

Chainlink is not a blockchain. It is a decentralised oracle network — infrastructure that brings external data onto blockchains and lets contracts act on information that does not exist on-chain.

The problem it addresses is structural. A blockchain can only see its own state. A contract that pays out based on an asset price, a sports result or an interest rate has no way to learn those things by itself, and connecting it to a single data feed reintroduces exactly the trusted intermediary the system was meant to remove.

Chainlink's answer is aggregation across independent node operators. Multiple nodes retrieve the same data, reach agreement off-chain, and submit a single aggregated report to the blockchain. This design, called Offchain Reporting, keeps costs down because only one transaction is posted rather than one per node, while removing any single point of failure.

LINK is the network's token. It is an ERC-20 token — specifically ERC-677, which adds a data payload to transfers — deployed on Ethereum and bridged to more than fifty other chains. It has no consensus mechanism of its own and inherits the security of whichever chain it sits on. Node operators are paid in LINK and may stake it as a commitment to honest reporting.

Total supply is capped at one billion tokens.

Beyond price feeds, the network provides verifiable randomness, automated contract execution and a cross-chain messaging protocol that moves data and tokens between blockchains, including non-EVM environments. Its economic model routes revenue earned in other assets into LINK to fund a reserve.

In practice Chainlink occupies an unglamorous but load-bearing position: much of decentralised finance depends on its price feeds to determine when loans are undercollateralised and positions should be liquidated.