Prediction Markets x402 offerings

Summary of one live arena42.ai prediction game (stock or poll): prize pool, spot price, visible predictions (median, quartiles, share within the payout threshold) or poll votes with payout per winner per side.

Browse Kalshi regulated prediction markets. Filter by status (open/closed/settled), event_ticker, series_ticker, or specific tickers; page with limit + cursor. Each market returns yes/no bid+ask and last price (in dollars, 0-1 = implied probability), 24h + total volume, liquidity, open interest, open/close times, and result if settled. Read-only mirror of Kalshi's market list (no Kalshi key needed).

Cross-venue prediction-market keyword search across Polymarket, Kalshi, and Limitless Exchange in one call. Pass q (required); filter by status (open/closed) and cap per-venue with limit. Each hit is tagged with its venue and returns the question, live YES/NO price (0-1 implied probability), USD volume, close date, and the venue URL — for finding the same real-world question wherever it trades. Read-only, keyless.

Sports prediction markets across Polymarket and Kalshi in one call — game lines, futures, and props (NFL/NBA/MLB/NHL/soccer/tennis/etc). Optionally narrow with league (a tag/category keyword, e.g. nfl, soccer, world-cup) and cap with limit. Each hit is tagged with its venue and returns the question, live YES/NO price (implied probability), USD volume, close date, and the venue URL. Read-only, keyless.

Cross-venue equivalent-market pairs for arbitrage / relative-value spotting. We fuzzy-match open Polymarket vs Kalshi markets by title-token overlap and return candidate pairs with both venues' YES prices and the implied-probability spread (Polymarket YES minus Kalshi YES). Tune with minScore (0-1 title-similarity floor) and limit. Heuristic — a high score is a strong candidate, not a guaranteed identical contract. Read-only, keyless. No public source maps these directly; the pairing is derived by 2s.io.

A Polymarket trader's portfolio by wallet address: total portfolio USD value plus open positions (market title, outcome, size, average vs current price, current value, and unrealized PnL). For tracking a wallet's prediction-market book. Read-only from Polymarket's Data API.

Signals from Polymarket's live public market data: top open markets by trailing volume, the biggest consensus shifts, markets entering or leaving the top 100, and a 0-100 liquidity and spread quality…

Get full detail for a single Kalshi event with all its nested markets. Mutually-exclusive flag tells you whether the markets partition outcome space (e.g. one winner). Useful for: viewing all candida…

Basis for one perpetual: mark versus oracle premium in percent and basis points, impact premium, current funding and the predicted next funding per venue. Use it when an agent is evaluating a cash-an…

The live feed a Kalshi event settles on, from Kalshi's free live_data tier: a crypto event returns the CF Benchmarks price series, candlesticks (15M, 1M) and the maturity time; an economic-data event…

List Kalshi markets (CFTC-regulated US event contracts). Filter by status (open/closed/settled/unopened) or by event ticker. Returns yes/no bid/ask, last price, volume, open interest, and the resting…

Kalshi's own minute-resolution city temperature index (Fahrenheit), the series its hourly temperature markets settle on, computed from weighted member stations. Ask for a trailing window (lastSec, de…

Live prediction-market data from Polymarket: the most liquid active markets with their outcomes, current prices (implied odds), liquidity, volume and end date. Optionally filter by a query. Public da…

Live prediction-market data from Polymarket: the most liquid active markets with their outcomes, current prices (implied odds), liquidity, volume and end date. Optionally filter by a query. Public data, $0.005.

Prices one economy decision — AGWC price, treasury flow, or economy health — stores it, and later checks the outcome against the same internal APIs. Machine clients pay $0.05 USDC (x402, Base L2) per signal. Humans: https://agentpaystore.com/eds/

Live betting lines for NFL, NCAAF, MLB, NBA, NCAAB and NHL: spread, total, both moneylines and per-book detail for every game on the board.

Dixon-Coles match probabilities with model-vs-market differences and de-vigged probabilities. Informational research output with no selection, ranking, or recommendation of wagers.

Dixon-Coles match probabilities with model-vs-market differences and de-vigged probabilities. Informational research output with no selection, ranking, or recommendation of wagers.

Dixon-Coles match probabilities with model-vs-market differences and de-vigged probabilities. Informational research output with no selection, ranking, or recommendation of wagers.

Live Polymarket prediction markets: outcome probabilities, 24h volume, liquidity, 24h price change and end date. Search by topic (query, e.g. 'bitcoin', 'election', 'fed rate') or omit query to get t…

Radar sample scorecard: first sightings across the latest N published snapshots, grouped by original verdict and compared to current quotes. Missing outcomes stay null; observed liquidity below $100 is reported separately; holding periods vary

Top trending Polymarket markets by 24h volume — prices, liquidity, volume data

[EXPERIMENTAL] Subscribe a webhook to receive push notifications when a HIP-4 outcome's probability jumps past a configurable threshold, or a new market appears - so an agent no longer has to poll hip4-snapshot itself. Polls Hyperliquid every ~5 minutes; not a true real-time feed. GET with query params, not JSON body - secret travels in the URL. See free GET /v1/prediction/hip4-alerts/event-types for the event catalog. Paid in USDC on Base.

Price ladder for Hyperliquid HIP-4 'above $X' price-binary markets: same-underlying outcomes sorted by strike, each with its live Yes probability. Reuses hip4-snapshot's cached data - no new upstream call. No volume field (Hyperliquid doesn't expose one for HIP-4). Required `underlying` (e.g. BTC, ETH, SOL, HYPE); optional `limit` (max 500). Paid in USDC on Base.