Live Kalshi + Polymarket prediction-market data and cross-venue arbitrage spreads, one schema.
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https://api.bellwether.markets/mcp3 tools · 701mslist_marketsList open prediction markets across Kalshi and Polymarket (normalized).List open prediction markets across Kalshi and Polymarket (normalized).
| Parameter | Type | Description |
|---|---|---|
| limit | integer | — |
| venue | — | — |
get_marketGet one normalized market. venue is 'kalshi' or 'polymarket'.Get one normalized market. venue is 'kalshi' or 'polymarket'.
| Parameter | Type | Description |
|---|---|---|
| venue* | string | — |
| market_id* | string | — |
matching_marketsFind the same real-world event on both venues, with the YES price spread.Find the same real-world event on both venues, with the YES price spread.
| Parameter | Type | Description |
|---|---|---|
| limit | integer | — |
| threshold | number | — |
3 of 3 tools published a description.
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Live Kalshi + Polymarket prediction-market data and cross-venue arbitrage spreads, one schema.
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