CCXT prediction market exchanges
Data and APIs
Multi-language exchange library with prediction-market adapters
- Free option
- Polymarket
- Kalshi
- Limitless
Opinion tools
Tools and dashboards built around Opinion, an on-chain prediction market. 6 listed.
2 listings in Data and APIs, fullest profiles first
Website checked 6 Nov 2026
Opinion Open API
Data and APIs
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
Tools for other markets
A product is listed here when its own pages name Opinion; that is not an official integration or an endorsement by Opinion. Nobody pays to be listed or for their position. Add a product for free.
Every profile is built from the product's own pages, and Vultax keeps a dated copy of each one. How the directory is made. Companies already listed can manage their profile.