{"uid":"cap_KkIdiMm0sL1bPVPgug7MO","slug":"www-prowldata-dev-aa82b7dc","name":"PROWL Prediction Market Volume & Liquidity Rankings","description":"Trading volume and liquidity rankings across all prediction market platforms. Find the most actively traded markets, biggest bets, and where money is flowing. Spot sudden volume spikes that signal breaking news or insider activity. Powered by PROWL. Use this to answer 'what are people betting on right now?' or 'which prediction markets have the most money?'","url":"https://www.prowldata.dev/api/v1/markets/volume","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iGw06OK0xzpAZwiS_ki9j","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns trading volume and liquidity rankings across all prediction market platforms, highlighting the most actively traded markets, largest bets, and sudden volume spikes.","exampleAgentPrompt":"What are the most actively traded prediction markets right now across all platforms — especially any with sudden volume spikes that might signal breaking news or unusual activity?","exampleUseCases":[{"title":"Monitor breaking news via market movement","prompt":"I just saw headlines about the election results. Can you check which prediction markets are seeing sudden volume spikes right now? I want to know if traders are already reacting to this."},{"title":"Find the biggest bets across all platforms","prompt":"Show me where the real money is flowing in prediction markets today. I'm looking for the markets with the deepest liquidity and largest positions — which ones are people actually putting serious capital behind?"},{"title":"Detect unusual betting activity patterns","prompt":"Pull up the prediction markets that had the biggest volume changes in the last few hours. I'm trying to spot if there's coordinated or insider activity happening before major announcements."}],"resultDescription":"A ranked list of prediction markets sorted by trading volume and liquidity, including market names, platforms, volume figures, liquidity depth, and flagged volume spikes that may indicate breaking news or unusual betting activity.","failureModes":["No markets match the specified filters — returns empty result set","Platform data temporarily unavailable — partial results with source gaps noted","Invalid filter parameters — returns 400 error with parameter validation message","Payment not processed — returns 402 requiring $0.001 USDC payment","Rate limit exceeded — returns 429 with retry-after header"],"whenToPreferThis":"Use this endpoint when you need to know where trading activity is concentrated across prediction markets, detect unusual volume surges that may indicate breaking news or coordinated betting, or compare liquidity across platforms. Prefer this over the live probabilities endpoint when the goal is market activity and money flow rather than current odds.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:36:47.345Z","isFirstParty":false}