Developer update: Polymarket TWAP RTDS is now live.
Developers can now receive 30-second and 60-second Chainlink TWAP prices through Polymarket's public RTDS WebSocket - no Chainlink credentials required. Integration is available through the TypeScript and Python SDKs or directly over WebSocket.
TypeScript:
@polymarket/client
@0.3.0
Python: polymarket-client==0.3.0
Integration guide:
Reminder: The new TWAP-based resolution mechanism takes effect on August 7 at 12:00 AM UTC
To clarify a common question: both the opening price - the price to beat - and the final settlement price will come from the applicable TWAP feed.
Five-minute markets use the 30-second TWAP, while 15-minute and 4-hour markets use the 60-second TWAP.
Developer update: Chainlink TWAP mainnet feeds are now available.
Developers can use their existing standard or sponsored Chainlink Data Streams credentials to begin integrating today. Find the 30-second and 60-second TWAP feed IDs here:
Chainlink is completing development and soak testing through August 4, so feeds may still be updated before then. Polymarket RTDS delivery remains scheduled for August 4, 2026.
Integration guide:
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