One API for every prediction market.

Unified access to Polymarket, Kalshi, and more — through a single SDK and API.

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Unified Markets

Search across Polymarket and Kalshi with a single query. Normalized data, consistent schemas, zero integration headaches.

Managed Trading

We handle exchange authentication, credential encryption, and order routing. You just call the API.

Real-time Data

Live prices, orderbooks, candlesticks, and cross-exchange analytics. All through one endpoint.

Simple by design

A single curl command is all it takes.

# Fetch open prediction markets
curl https://papi.tylerthebuildor.com/polymarket/markets \
  -H "Authorization: Bearer papi_sk_your_key" \
  | jq '.[0]'

Support for Polymarket Kalshi and more. Read the docs.

Ready to start trading?

Create an account and get your API key in under a minute.

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