Prediction market data, APIs and SDKs

Market data feeds, historical order books, SDKs, MCP servers and developer tools for building on prediction markets. 134 listed.

2 listings that name Opinion, fullest profiles first

Website checked 31 Oct 2026

CCXT's prediction module adds Polymarket, Kalshi, Limitless, Myriad, Opinion and Hyperliquid classes with fetchMarkets, fetchOrderBook, createOrder and positions across its language ports.

  • Free option
  • Polymarket
  • Kalshi
  • Limitless

Opinion Open API

Data and APIs

Website checked 31 Oct 2026

Opinion Labs' HTTP API at openapi.opinion.trade for BNB Chain markets, prices, order books and history, with one API key shared by WebSocket and CLOB SDKs.

  • Free option
  • Opinion

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