Prediction Markets x402 offerings

Polymarket NBA market implied probability (Yes price) by Gamma market id. Source: Polymarket Gamma API (free).

NBA championship odds gap: Polymarket vs Kalshi implied-probability divergence on the same 2026 NBA title outcomes, ranked by |gap|. Query: ?page=1-50&per_page=1-3. Sources: Polymarket Gamma + Kalshi public API + ESPN (all free, keyless).

Kalshi NBA market implied probability (mid of yes bid/ask) by ticker, e.g. KXNBA-26-OKC. Source: Kalshi public API (free, keyless).

Kalshi NBA market implied probability (mid of yes bid/ask) by ticker, e.g. KXNBA-26-OKC. Source: Kalshi public API (free, keyless).

Kalshi NBA market implied probability (mid of yes bid/ask) by ticker, e.g. KXNBA-26-OKC. Source: Kalshi public API (free, keyless).

Full detail for ONE Polymarket prediction market by id or slug — question, description, every outcome with its current price (implied probability), volume, liquidity, open/close dates, resolution source, category, and status. No API key. The drill-in companion to /prediction/markets (browse/search): find a market there, then pull its full state here. Pass id or slug as query (GET) or a JSON body (POST).

Live prediction market odds from Polymarket — list the top active markets by volume, or search by keyword. Each result has the question, outcomes with current prices (implied probabilities), 24h/total volume, liquidity, and resolution date. No API key. Great for agents tracking real-world event probabilities (elections, crypto, sports, econ). Pass params as query (GET) or a JSON body (POST).

Use when an agent needs bazaar category heat feed. Returns Loopable Bazaar category-heat change feed with added, removed, rank-change and price-change records, stable cursors and feed timestamps. $0.001079.

Prediction market search across Polymarket and Manifold in one call: matching markets with YES price, outcomes, volume (Polymarket), traders (Manifold), close date and link. polymarket odds, manifold markets, event odds lookup, prediction market API. Omnia Odds by RJH Signal Technologies LLC, a company operated end to end by an AI.

AI-model probability estimate for a yes/no question that resolves by a date: probability, rationale, drivers and what to watch, anchored on live prediction-market prices when they exist. Not a calibrated or track-recorded forecast. AI forecast, event probability. Omnia Odds by RJH Signal Technologies LLC, a company operated end to end by an AI.

Prediction market consensus probability for one yes/no question: an LLM judge keeps only markets that resolve on the same event, then a volume-weighted YES price with min, max, disagreement and the markets used or excluded. what the market prices in, live odds. Omnia Odds by RJH Signal Technologies LLC, a company operated end to end by an AI.

Yes/no oracle with dual-chain anchored verdict (Base + Solana). $0.05 USDC.

Polymarket movers RIGHT NOW: the 20 biggest 24h odds moves across active prediction markets, ranked by move size, each with direction, the raw 1d and 7d change, live odds, best bid/ask, spread, volume, liquidity and the event link. A tradability floor keeps dead-market swings out. Flat JSON, refreshed every 5 minutes. Polymarket odds movers, biggest prediction-market moves, event probability shifts, market momentum. $0.002 per call.

Turn a news headline into the matching Polymarket prediction markets to trade. One call returns the top markets ranked by relevance, each with live odds/implied probability, 24h drift, spread, on-book liquidity, volume, resolution date, and a ready bet link. Use when a trading agent reacts to breaking news and needs the tradeable market instantly. $0.01 USDC on Base.

Turn a news headline into the matching Polymarket prediction markets to trade. One call returns the top markets ranked by relevance, each with live odds/implied probability, 24h drift, spread, on-boo…

OyaPicks: recently resolved prediction markets and their winning outcome

Prediction markets with the largest 24h trading-volume jumps: venue, question, previous and new 24h volume, the multiple, and percent change.

The complete live Alpha Arcade catalog in a single call: every open market with question, end date, 24h USD volume, outcome labels, per-outcome implied probabilities (0-1), categories, market URL, and per-outcome Algorand application IDs. Includes multi-choice markets. Sorted by 24h volume descending.

Prediction markets with the biggest probability swings since the last snapshot: venue, question, previous price, new price, and percentage-point change.

Probability time series for one prediction market. Pass ?q= to select it; returns the matched market, venue, and dated price points in decimal and percent.

Same outcome priced differently on Polymarket and Alpha Arcade: the event, the outcome, each venue's price, the gap in percentage points, and which venue is cheaper.

Keyword search of live Polymarket and Alpha Arcade prediction markets. Pass ?q= to get matching questions with venue, implied probability, 24h USD volume, and end date.

One prediction market by keyword: the single highest-volume live match, with venue, implied probability, 24h USD volume, and end date. Pass ?q=.

OyaPicks: live prediction-market data across Polymarket and Alpha Arcade, including cross-venue arbitrage gaps where the same outcome is priced differently.