
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
Market depth · Up
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
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Rules
This market will resolve to "Up" if the reference price for US Dollar / Brazilian Real (USD/BRL) on October 21, 2026 is higher than the reference price for the most recent prior reference day.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/usdbrl-up-or-down-on-october-21-2026AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp