# Services from api.predictionmarketdata.io on Zero

> api.predictionmarketdata.io serves 12 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.predictionmarketdata.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.predictionmarketdata.io/health.json

## Services

- [Prediction Market Search & Filter API](https://www.zero.xyz/c/prediction-market-search-filter-api-ef75e5d2/llms.txt): $0.001/call via x402. Search, filter, sort, and paginate prediction markets across exchanges like Kalshi, Polymarket, and Gemini.
- [Lukka Prediction Markets Price History](https://www.zero.xyz/c/lukka-prediction-markets-price-history-b0845db0/llms.txt): $0.005/call via x402. Returns OHLCV candlestick price history for a specific prediction market event on exchanges like Kalshi, Polymarket, or Gemini.
- [Lukka Prediction Markets Open Interest API](https://www.zero.xyz/c/lukka-prediction-markets-open-interest-api-1e2c3b64/llms.txt): $0.001/call via x402. Returns time-bucketed open interest (USD) data for prediction market exchanges like Polymarket, aggregated by source and time interval.
- [Prediction Market Volume & Trade-Count by Exchange (Time-Bucketed)](https://www.zero.xyz/c/prediction-market-volume-trade-count-by-exchange-time-bucketed-2ef12b3e/llms.txt): $0.001/call via x402. Returns time-bucketed prediction market volume and trade-count aggregated by exchange for a specified time range and interval.
- [Lukka Prediction Markets Total Volume](https://www.zero.xyz/c/lukka-prediction-markets-total-volume-e2a6896e/llms.txt): $0.001/call via x402. Returns time-bucketed total trading volume in USD for prediction market exchanges (e.g. Polymarket) over a specified time range.
- [Prediction Market Similarity Search](https://www.zero.xyz/c/prediction-market-similarity-search-81998cc2/llms.txt): $0.005/call via x402. Returns semantically similar prediction markets given a source event ticker identifier.
- [Prediction Market News Feed](https://www.zero.xyz/c/prediction-market-news-feed-139ff270/llms.txt): $0.001/call via x402. Returns recent news articles relevant to prediction markets filtered by a UTC publish-date window.
- [Prediction Market Activity Narrative Recap](https://www.zero.xyz/c/prediction-market-activity-narrative-recap-a0f63e40/llms.txt): $0.001/call via x402. Returns an LLM-generated narrative summary recapping recent activity across prediction markets.
- [Lukka Prediction Markets Exchange Directory](https://www.zero.xyz/c/lukka-prediction-markets-exchange-directory-c5ba94f5/llms.txt): $0.001/call via x402. Lists and filters prediction market exchanges with VASP scores, classifications, locations, and status information
- [Lukka Prediction Markets PMCS Stats](https://www.zero.xyz/c/lukka-prediction-markets-pmcs-stats-9c083bc1/llms.txt): $0.001/call via x402. Returns aggregated statistics on prediction market contracts across major exchanges, including category breakdowns and contract counts by exchange.
- [PMCS Taxonomy Code Listing](https://www.zero.xyz/c/pmcs-taxonomy-code-listing-0918248d/llms.txt): $0.001/call via x402. Returns the list of valid PMCS taxonomy codes used to filter and categorize prediction-market searches.
- [Lukka Prediction Markets Sector Statistics](https://www.zero.xyz/c/lukka-prediction-markets-sector-statistics-d939b074/llms.txt): $0.001/call via x402. Returns market statistics across prediction market sectors including most active contracts, trading activity, and market news from major exchanges.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)