World, the digital identity project led by OpenAI CEO Sam Altman and formerly known as Worldcoin, is expanding into prediction markets through an integration with Polymarket.
The World App, a mobile platform that combines a digital wallet with World’s decentralized identity system, World ID, now supports the Polymarket App, the company announced Tuesday.
“World App users can download and access the new Mini App today in countries where Polymarket’s services are permitted,” the announcement stated.
Both platforms have faced global usage restrictions, with Polymarket yet to relaunch in the U.S. after receiving approval from the Commodity Futures Trading Commission.
With the launch of the Polymarket Mini App on World, World App users can now place bets on prediction markets directly from their wallet. The integration allows participation using two crypto assets: Circle’s USDC stablecoin and World’s native token, Worldcoin (WLD).
“Eligibility for Worldcoin tokens is limited by geography, age, and other criteria,” World said in its announcement, noting that the token cannot be distributed via World App to users in restricted regions, including New York State.
“World Assets and World Foundation are not responsible for the availability of WLD on third-party platforms, such as centralized or decentralized exchanges,” the statement added.
World’s Mini Apps Surpass 100 Million Downloads
The Polymarket integration comes shortly after World reached a milestone of 100 million Mini App downloads in early October, highlighting the growing popularity of third-party apps within World App.
Launched in October 2024, World’s Mini Apps are web-based applications fully integrated into the World App ecosystem. By March 2025, the platform hosted over 150 Mini Apps, with transactions totaling 10 million WLD (approximately $8.8 million).
As of July, World reported 14 million verified unique human users on its platform, with its network spanning 160 countries and a total of 30 million users, the company said.
Prediction Markets Reach $2 Billion in Weekly Trading Volumes
World’s integration with Polymarket arrives amid a surge in global prediction market activity, with trading volumes hitting new all-time highs.
Data from Dunedata on Dune Analytics shows that weekly trading volumes surpassed $2 billion for the first time in mid-October. Polymarket led the surge, accounting for 52.3% of total volume, while its main competitor, Kalshi, recorded roughly $950 million, or about 47% of the market.
Polymarket, the world’s largest prediction market, secured a $2 billion investment from the Intercontinental Exchange on October 7, underscoring rising institutional interest.
Just days later, on October 10, Kalshi raised $300 million in a funding round led by Sequoia Capital and Andreessen Horowitz, while announcing an immediate expansion into 100 additional markets globally.
