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World, OpenAI CEO Sam Altman’s digital identity project, formerly known as Worldcoin, is expanding into prediction markets by integrating Polymarket.
World App, a mobile application that combines a digital wallet with World’s decentralized identity tool, World ID, has integrated the Polymarket App, the company announced on Tuesday.
“World App users can download and access the new Mini App today in countries where Polymarket’s services are permitted,” the announcement said.
Both World App and Polymarket have faced usage restrictions globally, as Polymarket is yet to relaunch in the US after securing approval by the US Commodity Futures Trading Commission.
World App users can bet on Polymarket with USDC and WLD
The launch of the Polymarket Mini App on World enables World App users to place Polymarket bets directly from the World App wallet.
The app allows users to participate in prediction markets using two crypto assets, Circle’s USDC (USDC) stablecoin and World’s native token, Worldcoin (WLD).
Source: World
“Eligibility for Worldcoin tokens is restricted based on geography, age and other factors,” World noted in the announcement, adding that the token is not available for distribution via World App to users residing and located in restricted areas, 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,” it added.
World’s Mini App downloads pass 100 million
The integration came soon after World passed a milestone of 100 million Mini App downloads in early October, underscoring the rising popularity of third-party apps available within World App.
Introduced in October 2024, World’s Mini Apps are web applications that are natively integrated into World App. As of March 2025, World had at least 150 Mini Apps on its platform, with 10 million WLD ($8.8 million) transacted.
Source: World Chain
As of July, World had 14 million verified unique human users on its platform, with its network spanning 160 countries and 30 million users in total, according to the company.
Prediction markets hit new highs at $2 billion in volumes
World’s Polymarket integration comes as prediction markets boom globally, with trading volumes recording new all-time highs recently.
According to data compiled by Dunedata on Dune Analytics, weekly trading volumes on prediction markets surpassed $2 billion for the first time on record in mid-October.
Related: MetaMask to let users bet on politics, sports via Polymarket
Most of the activity came from Polymarket, which accounted for 52.3% of total volume, while its main competitor, Kalshi, recorded roughly $950 million, or about 47%.
Weekly trading volumes on prediction markets. Source: Dune
Polymarket, the largest prediction market, on Oct. 7 secured a $2 billion investment from the Intercontinental Exchange, highlighting the growing interest from institutions.
On Oct. 10, Kalshi raised $300 million in a funding round led by Sequoia Capital and Andreessen Horowitz and announced immediate expansion into 100 more markets worldwide.
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