A major API policy shift is impacting the on-chain analytics sector. Several data tracking platforms including KaitoAI and Wallchain have lost access to critical data sources, severely limiting their ability to monitor user activity and provide market insights. This restriction signals tightening oversight of data collection practices across major platforms. The move could reshape how decentralized finance projects access real-time intelligence, forcing the industry to explore alternative solutions and data infrastructure. Projects previously reliant on these tracking services now face operational challenges.