Happenline

See Polymarket and Kalshi prediction-market signals directly on X, so hot topics come with market-implied probabilities.

Predictions in your feed. Happenline adds prediction-market context to X. When a post is connected to a market-moving topic, Happenline shows related Polymarket and Kalshi probabilities next to the conversation, helping you compare social sentiment with prices backed by real money. Instead of relying only on reactions, takes, or headlines, Happenline gives you a market signal: what traders are currently pricing in, how that signal is changing, and which related markets are becoming important. Key features: - Market probabilities on X View relevant prediction-market probabilities beside posts, so you can check how real-money markets are pricing the same topic. - Polymarket and Kalshi in one extension Happenline brings together data from two major prediction-market platforms, reducing the need to search across sites while reading X. - Important market moves Track major probability changes, volume spikes, and hot-market ranking shifts, so you can spot events that markets are actively repricing. - Broad coverage of live topics Follow market signals across AI, technology, elections, policy, crypto, public companies, sports, geopolitics, entertainment awards, and breaking news. - Built for context, not noise Happenline is designed to help you interpret information with a clearer signal layer. Market prices are not guarantees, but they can reveal how expectations are changing in real time. Happenline does not place trades or provide investment advice. It surfaces publicly available prediction-market data as context while you browse X.