Polymarket, once a niche prediction market in the crypto space, has seen significant growth, becoming a widely used platform with real users and substantial financial flows. Since 2021, liquidity has steadily increased, with a notable acceleration in 2024-2025. Weekly trading volumes have surpassed $500 million, and on-chain transactions are nearing 100 million. The ecosystem's expansion is further evidenced by the rapid growth of third-party tools and projects. Notable developments include PolymarketSport for real-time sports odds tracking, PolyInsider for whale and unusual trade alerts, and PolyAlertHub for real-time alerts on significant market movements. These tools enhance user engagement and solidify Polymarket's role as a key on-chain information infrastructure for traders and builders. As the number of tools and users grows, Polymarket is transforming from a simple betting platform into a comprehensive ecosystem, indicating that prediction markets are no longer a small-scale endeavor.