Farcaster is a decentralized social media protocol designed to overcome limitations of traditional platforms like Twitter and Facebook. Built on the Ethereum blockchain, it enables users to create and interact with social applications without central authority, emphasizing user data control and censorship resistance.

The most popular application on Farcaster is Warpcast, which functions like Twitter. Users can post short messages (called casts), engage with others, and even integrate blockchain features such as minting NFTs directly within the platform. Farcaster supports interoperability, allowing apps built on its protocol to share data seamlessly.

The network also implements unique features to combat bots, such as paid registration and limited storage capacity for user activity. Innovations like Frames allow users to embed mini-apps in posts, enabling interactions like gaming or purchases without leaving the app.