Self-custody cryptocurrency wallet MetaMask has integrated prediction marketplace Polymarket, allowing users to bet on real-world events without leaving the wallet interface. The integration, first announced in October, went live on Wednesday.
The launch comes one day after Polymarket began its phased rollout to U.S. users following approval from the Commodity Futures Trading Commission.
Polymarket had been blocked from American markets since 2022.
What Happened
MetaMask users can now access Polymarket's prediction markets directly through the wallet's mobile app, with coverage spanning sports, politics, cryptocurrency and cultural events. The feature, branded as MetaMask Prediction Markets, eliminates the need to navigate to external platforms for placing bets on event outcomes.
Each trade through MetaMask carries a 4% fee split equally between the two companies. Trading directly on Polymarket's platform remains free of charge.
Ajay Mittal, MetaMask's vice president of product strategy, said the company benchmarked pricing extensively against prediction markets and traditional sports betting. The flat fee structure provides transparency regardless of outcome probability, unlike per-contract models used by competitors.
Users earn MetaMask Rewards points for each Polymarket bet at a rate of 2 points per dollar traded. The points program launched alongside the integration.
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MetaMask supports funding with any token on Ethereum or compatible Layer 2 networks. The wallet's senior director of product Mike Lwin said using prediction markets on mobile currently presents friction for users.
Why It Matters
The integration represents a shift toward wallets functioning as comprehensive financial platforms rather than simple custody tools. MetaMask positions itself as the first self-custody wallet offering native prediction market access.
Prediction markets have experienced explosive growth in recent months. Polymarket recorded $4.3 billion in trading volume during November, up nearly 5% from October. Rival platform Kalshi processed $5.8 billion in November volume.
The sector drew mainstream attention during the 2024 U.S. presidential election, when Polymarket's markets correctly signaled Donald Trump's victory ahead of traditional polling. Intercontinental Exchange, parent company of the New York Stock Exchange, invested $2 billion in Polymarket at a $9 billion valuation in October.
MetaMask's move follows similar product expansions from competing wallets. Trust Wallet launched native prediction features for 220 million users this week through partnerships with Myriad Markets, with Polymarket and Kalshi integrations planned.
The 4% fee structure may deter some users who can access Polymarket directly without charges. However, the convenience of in-wallet trading and rewards points could offset cost concerns for MetaMask's user base.
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