# Services from api.scanna.xyz on Zero > api.scanna.xyz serves 16 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.scanna.xyz Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.scanna.xyz/health.json ## Services - [Scanna Hot Markets Feed](https://www.zero.xyz/c/scanna-hot-markets-feed-a9434532/llms.txt): $0.010002/call via x402. Returns a ranked feed of the hottest prediction markets on Polymarket and Kalshi, scored by a composite heat metric that combines 24h volume, volume spike, liquidity, order-flow bias, and whale activity. - [Scanna Heat Signal – Single Market Deep Dive](https://www.zero.xyz/c/scanna-heat-signal-single-market-deep-dive-b2104c81/llms.txt): $0.010001/call via x402. Returns a full computed signal breakdown for one Polymarket or Kalshi prediction market, including heat score, volume-spike multiplier, order-flow bias, whale activity, volatility, liquidity, and YES/NO prices. - [Scanna Risk Score](https://www.zero.xyz/c/scanna-risk-score-c9151041/llms.txt): $0.02001/call via x402. Returns a 6-factor A-F risk grade (plus 0-100 weighted score) for a single Polymarket market, served entirely from in-memory caches with no upstream calls or writes. - [Scanna Live Predict](https://www.zero.xyz/c/scanna-live-predict-25218c79/llms.txt): $0.050011/call via x402. Returns a live CatBoost-generated win probability, current market price, divergence signal, and a ~28-field feature snapshot for a single active Polymarket prediction market. - [Scanna Price Compare](https://www.zero.xyz/c/scanna-price-compare-0f4eb963/llms.txt): $0.010017/call via x402. Returns verified cross-venue prediction market price comparisons with both order books side by side, observation timestamps, staleness labels, and coverage statistics. - [Scanna Open Interest](https://www.zero.xyz/c/scanna-open-interest-08e49da4/llms.txt): $0.010016/call via x402. Returns Polymarket open interest in USD, either platform-wide or scoped to a single market by its condition ID - [Scanna Markets Feed](https://www.zero.xyz/c/scanna-markets-feed-b3fef331/llms.txt): $0.005005/call via x402. Returns a paginated, filtered, and volume-sorted snapshot of the combined Polymarket and Kalshi prediction market universe from an in-memory cache refreshed every ~60 seconds. - [Scanna Insider Risk Score](https://www.zero.xyz/c/scanna-insider-risk-score-432e5c2d/llms.txt): $0.020013/call via x402. Returns a 0-100 insider-risk score for a single Polymarket proxy wallet address based on its pre-computed stats row - [Scanna Smart Money Leaderboard](https://www.zero.xyz/c/scanna-smart-money-leaderboard-9a7f9eef/llms.txt): $0.020003/call via x402. Returns a leaderboard of Polymarket wallets ranked by realised win rate, with filters for minimum trades and win rate thresholds. - [Scanna Yes/No Price Lookup](https://www.zero.xyz/c/scanna-yes-no-price-lookup-daf3aa08/llms.txt): $0.005006/call via x402. Returns cached yes/no prices for up to 50 prediction market condition IDs from Polymarket and Kalshi, served from an in-process memory cache with ~60s staleness. - [Scanna Matched Market Clusters](https://www.zero.xyz/c/scanna-matched-market-clusters-bf8fa5b7/llms.txt): $0.010008/call via x402. Returns cross-venue matched and LLM-verified market clusters from Scanna's database, grouping equivalent prediction markets across Polymarket, Kalshi, Limitless, and other venues with member markets, outcomes, and optional relationship edges. - [Scanna Event Catalog Search](https://www.zero.xyz/c/scanna-event-catalog-search-8bd6d1bc/llms.txt): $0.010014/call via x402. Searches and pages through a cross-venue prediction market event catalog with free-text title search, venue and status filters, and limit/offset pagination - [Scanna Recent Trades](https://www.zero.xyz/c/scanna-recent-trades-b8976dea/llms.txt): $0.005015/call via x402. Fetches the most recent trades for a specific Polymarket prediction market, paginated via a keyset cursor, newest first. - [Scanna Polymarket Trader Leaderboard](https://www.zero.xyz/c/scanna-polymarket-trader-leaderboard-868f3315/llms.txt): $0.010012/call via x402. Returns top Polymarket traders ranked by realised PnL or trading volume, with win rate and trade count enrichment - [Scanna Market Resolutions](https://www.zero.xyz/c/scanna-market-resolutions-21aa8329/llms.txt): $0.005007/call via x402. Returns recent resolved prediction market outcomes from the market_resolutions table, with condition ID, platform, question, winning side, volume, and resolution timestamp. - [Scanna Enrichment Series Catalog](https://www.zero.xyz/c/scanna-enrichment-series-catalog-63d95325/llms.txt): $0.010009/call via x402. Returns the full catalog of enrichment data series available in Scanna's Postgres database, one row per (provider, series_id) with metadata including dataset, title, unit, date range, and observation count. 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)