Chainlink nodes consist of two parts: One – Chainlink Core, which is responsible for reading newly established SLAs and forwarding allocations to the Chainlink Adapter; the other – the Chainlink Adapter, which acts as a connection between the node and the outside world. It can read, process and write data to the blockchain. Chainlink could be interesting for developers working on blockchain-based financial products that require access and validation from external data sources. Moreover, in the future, LINK can solve the end for various key problems related to smart contracts and their users, becoming a crucial tool in the integration of blockchain technology and real-world applications.