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Layer
OBSERVEDOne API to match, price and trade Kalshi and Polymarket bets
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- CLICKS · 28D
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- FIRST SEEN
- OCT 11
- IN THE FLOW
Layer is an API and Python SDK for developers building trading bots and AI agents that trade prediction markets. It tells your bot which markets on Kalshi and Polymarket US are the same bet, shows prices and order books in one format, and places, cancels and reports on orders. Your money and venue keys never pass through Layer; orders go directly from your code to the venue.
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