Contract creators are developers who build smart contracts with the goal of connecting them to off-chain data sources. In this section, we'll explain how Chainlink works from the perspective of the contract creator, how to easily customize your smart contracts so that they are primed to connect with the rest of the Chainlink ecosystem, and provide a walkthrough on how to execute an example contract already connected to an external data source.

Developers can start creating contracts right now in a testing environment and on Ethereum mainnet. Ropsten is the recommended development network for the Ethereum Blockchain, but we also support Rinkeby and Kovan. Our goal is to provide a practical development environment so you can be prepared to execute smart contracts on the Ethereum mainnet.