Polymarket Yes-No Ask Price Sum Arbitrage Execution
Monitor Polymarket market orderbook and automatically execute market buy orders for both Yes and No tokens when the sum of their ask prices is less than 1
Who is this for?
This workflow is designed for traders who want to automatically profit from arbitrage opportunities on Polymarket by monitoring orderbooks and executing market buy orders for both Yes and No tokens when the sum of their ask prices is less than 1.
What problem is this workflow solving? / Use case
Arbitrage opportunities on Polymarket can be profitable but require constant monitoring of orderbooks and quick execution. Manually checking prices and executing trades is time-consuming and you might miss opportunities. This workflow automatically monitors orderbooks, identifies arbitrage opportunities (when Yes ask price + No ask price < 1), and executes trades automatically by buying both Yes and No tokens at market price.
What this workflow does
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Monitors the orderbook for a specified Polymarket market every 5 seconds
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Calculates the sum of Yes and No ask prices using BigNumber for precision
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Detects arbitrage opportunities when the total price is less than 1
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When an opportunity is detected:
- Stops monitoring
- Builds Yes order signature data (EIP-712)
- Requests user to sign the Yes order
- Submits the Yes order
- Builds No order signature data
- Requests user to sign the No order
- Submits the No order
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Completes the arbitrage execution
Setup
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Set the Market Slug in the config node (e.g., "will-there-be-at-least-500-measles-cases-in-the-us-in-2026")
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Set the Order Amount (USD per token) in the config node (default: 10). This is the amount to spend on each Yes and No token.
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Connect your Polymarket credentials in the config node (apiKey, secret, passphrase, address, proxyWallet)
Nodes in Use
- User configuration: Collects market slug, order size, and Polymarket credentials.
- Polymarket:
- Get the order books for both Yes and No tokens for the market
- Get your proxy wallet for the connected address
- Build the data needed for you to sign the order
- Create and submit the order after you sign
- Human-in-the-loop: Ask you to sign the order in your wallet (EIP-712) when an arbitrage opportunity is detected.
Reference
Tip: This executable workflow was automatically generated by SeamFlux Bot. To use it, create an execution and test it with your data to ensure it meets your needs.
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