Polymarket, the world's largest prediction market platform, has announced a partnership with Chainlink to integrate its decentralized oracle network for automated settlement of asset-price-related markets. The integration, which went live on Polygon on September 12, 2025, aims to reduce delays and tampering risks by using Chainlink's timestamped price feeds (Data Streams) and automated settlement tools.
This move replaces Polymarket's previous reliance on UMA's optimistic oracle system, which had been criticized for governance attacks and controversial outcomes. The new system allows markets to settle immediately upon expiration, initially focusing on crypto asset prices while exploring future applications for more subjective markets.
Though Polymarket plans to expand Chainlink's use beyond asset prices, subjective markets (like those based on political events or personal appearances) remain challenging. The partnership follows Chainlink's previous collaboration with the US Department of Commerce, highlighting its credibility in providing reliable on-chain data.