X to introduce crypto trading features and open-source ranking algorithm

X is expanding its functional capabilities and transparency through two major developments. First, the platform is preparing to introduce cryptocurrency buy and sell buttons, allowing users to trade digital assets directly within the app. Nikita Bier, an advisor at X, confirmed that following the implementation of ‘Cashtags’—which allow users to view Solana and Ethereum price charts in posts—the next step is enabling direct transactions.

Additionally, X has released the source code for its ranking algorithm, known as ‘Phoenix,’ to increase platform transparency. The algorithm determines the order of posts on a user’s ‘For You’ feed by predicting interaction probabilities. Different actions are assigned specific weights: for example, a predicted URL copy is weighted 40 times more heavily than a ‘like,’ while a predicted report carries a negative weight 468 times larger than a like. The system also assigns negative weights to predicted ‘displeasure’ responses, such as mutes or blocks, to limit the visibility of certain content.