Coinbase is facing an investigation from the New York City Council over how it advertised its prediction-market products. Council Speaker Julie Menin confirmed the inquiry, and the focus is not on the structure of the prediction contracts themselves. It is on how Coinbase’s advertising, especially influencer campaigns, was disclosed to the public.

At the center of the probe are two consumer-protection questions: whether sponsored promotions were clearly labeled when influencers endorsed the product, and whether marketing materials may have been accessible to minors.

That distinction matters because prediction markets sit at the intersection of crypto, gambling-style products, and online advertising. If a platform or its promoters fail to label sponsored endorsements, regulators can treat that as a consumer-protection issue rather than a narrower dispute over the contracts. The same concern applies if marketing for age-sensitive products is distributed in ways that could reach underage audiences.

The significance here is the scope of the inquiry: disclosure standards, audience safeguards, who was paid, how that was presented to viewers, and what controls were in place to limit exposure. It is also unfolding against state-level action. In May 2026, New York’s attorney general sued Coinbase and Gemini over prediction-market operations in the state.