[{"_1":2,"_130":-5,"_131":-5},"loaderData",{"_3":4,"_10":11},"root",{"_5":-5,"_6":7,"_8":9},"user","appId","cm7twdhs6009l11ml868xhxld","wsEndpoint","https://dev.fun","routes/app.$appId",{"_12":13},"appDetail",{"_14":15,"_16":17,"_18":19,"_20":21,"_22":23,"_24":25,"_26":27,"_28":27,"_29":30,"_32":33,"_34":35,"_36":37,"_38":39,"_40":41,"_42":43,"_44":45,"_5":46,"_57":58,"_59":60,"_61":60,"_62":63,"_64":60,"_65":43,"_66":43,"_67":60,"_68":60,"_69":60,"_70":17,"_71":17,"_72":-5,"_73":74,"_75":76,"_77":78,"_79":-5,"_80":-5,"_81":17,"_82":83,"_121":33,"_122":123,"_124":17,"_125":126},"id","1fb23ffe0df8ea85f076","isMyApp",false,"projectId","60e42f5c-37fd-425c-ae4e-79262ed7a378","name","crossbook","description","Your command center for prediction market arbitrage! Crossbook scans Manifold Markets and Polymarket in real-time, intelligently groups similar events, and surfaces the juiciest spreads and best odds across platforms. Whether you're hunting for arbitrage opportunities or just want to see where the smart money really is, this terminal shows you everything at a glance.","brief","Find the best prediction market odds and spreads across Manifold + Polymarket instantly!","isLive",true,"isPublic","tags",[31],"👑","cover","https://cdn.dev.fun/snapshot/1fb23ffe0df8ea85f076/96882_03c0f3b9.webp","cdnUrl","https://cdn.dev.fun/app/1fb23ffe0df8ea85f076/96882","createdAt",["D",1756776299557],"updatedAt",["D",1756866299212],"lastCommitId",["B","96882"],"tier",1,"credits",-5,{"_14":47,"_48":49,"_50":-5,"_51":49,"_52":53,"_54":-5,"_55":56},"108950f4-0731-47b8-a571-803806ebca4d","uniqueId","8DWFTpEY7N97rEAYLiHAbx9pY5RwAMerri7xaQhiyxc5","username","solanaWallet","displayName","8DW...xc5","bio","avatar","/avatar.svg","commitCount",7,"forkCount",0,"likeCount","runsCount",18,"downvoteCount","upvoteCount","upvoteRate","commentCount","reportCount","visitorCount","isArchived","isRenamed","contractAddress","code","import { useState, useEffect, useCallback, useMemo } from 'react';\nimport { Search, RefreshCw, ExternalLink, RotateCcw } from 'lucide-react';\nconst BASE_URL = 'https://crossbook-proxy-rn7d.vercel.app';\nexport default function App() {\n const [markets, setMarkets] = useState([]);\n const [scannedCount, setScannedCount] = useState(0);\n const [loading, setLoading] = useState(true);\n const [error, setError] = useState('');\n const [search, setSearch] = useState('');\n const [minVolume, setMinVolume] = useState(0);\n const [minSpread, setMinSpread] = useState(0);\n const [autoRefresh, setAutoRefresh] = useState(true);\n const [sortBy, setSortBy] = useState('spreadPct');\n const [sortOrder, setSortOrder] = useState('desc');\n useEffect(() => {\n const params = new URLSearchParams(window.location.search);\n if (params.get('search')) setSearch(params.get('search'));\n if (params.get('minVolume')) setMinVolume(Number(params.get('minVolume')));\n if (params.get('minSpread')) setMinSpread(Number(params.get('minSpread')));\n }, []);\n useEffect(() => {\n const params = new URLSearchParams();\n if (search) params.set('search', search);\n if (minVolume > 0) params.set('minVolume', minVolume.toString());\n if (minSpread > 0) params.set('minSpread', minSpread.toString());\n const newUrl = `${window.location.pathname}${params.toString() ? '?' + params.toString() : ''}`;\n window.history.replaceState({}, '', newUrl);\n }, [search, minVolume, minSpread]);\n const normalizeTitle = title => {\n return title.toLowerCase().replace(/[^\\w\\s]/g, ' ').replace(/\\s+/g, ' ').trim();\n };\n const tokenize = text => {\n const stopwords = new Set([\"the\", \"and\", \"for\", \"with\", \"will\", \"have\", \"has\", \"are\", \"is\", \"at\", \"on\", \"in\", \"of\", \"to\", \"from\", \"by\", \"a\", \"an\", \"or\", \"vs\"]);\n return text.split(' ').filter(word => word.length > 2 && !stopwords.has(word));\n };\n const jaccardSimilarity = (set1, set2) => {\n const intersection = new Set([...set1].filter(x => set2.has(x)));\n const union = new Set([...set1, ...set2]);\n return intersection.size / union.size;\n };\n const formatVolume = volume => {\n if (volume >= 1000000) return `$${(volume / 1000000).toFixed(1)}M`;\n if (volume >= 1000) return `$${(volume / 1000).toFixed(1)}K`;\n return `$${volume.toFixed(0)}`;\n };\n const fetchWithTimeout = async (url, timeout = 12000) => {\n const controller = new AbortController();\n const timeoutId = setTimeout(() => controller.abort(), timeout);\n try {\n const response = await fetch(url, {\n headers: {\n 'Accept': 'application/json'\n },\n signal: controller.signal\n });\n clearTimeout(timeoutId);\n if (!response.ok) throw new Error(`HTTP ${response.status}`);\n return await response.json();\n } catch (error) {\n clearTimeout(timeoutId);\n throw error;\n }\n };\n const fetchData = useCallback(async () => {\n setLoading(true);\n setError('');\n try {\n let allItems = [];\n let usePrimary = true;\n try {\n const primaryResult = await fetchWithTimeout(`${BASE_URL}/api/all`);\n if (primaryResult.items && Array.isArray(primaryResult.items)) {\n allItems = primaryResult.items;\n } else {\n usePrimary = false;\n }\n } catch {\n usePrimary = false;\n }\n if (!usePrimary) {\n setError('Primary endpoint unavailable, using fallbacks');\n const [manifoldResult, polymarketResult] = await Promise.allSettled([fetchWithTimeout(`${BASE_URL}/api/manifold`), fetchWithTimeout(`${BASE_URL}/api/polymarket`)]);\n let errors = [];\n if (manifoldResult.status === 'fulfilled') {\n if (manifoldResult.value.items && Array.isArray(manifoldResult.value.items)) {\n allItems.push(...manifoldResult.value.items);\n } else {\n errors.push('Manifold unavailable');\n }\n } else {\n errors.push('Manifold unavailable');\n }\n if (polymarketResult.status === 'fulfilled') {\n if (polymarketResult.value.items && Array.isArray(polymarketResult.value.items)) {\n allItems.push(...polymarketResult.value.items);\n } else {\n errors.push('Polymarket unavailable');\n }\n } else {\n errors.push('Polymarket unavailable');\n }\n if (allItems.length === 0) {\n setError('Failed to fetch data from both sources');\n setMarkets([]);\n setScannedCount(0);\n setLoading(false);\n return;\n } else if (errors.length === 1) {\n setError(`Primary endpoint unavailable, using fallbacks • ${errors[0]}`);\n }\n }\n if (allItems.length > 0) {\n setScannedCount(allItems.length);\n const groups = [];\n const used = new Set();\n allItems.forEach((item, i) => {\n if (used.has(i)) return;\n const group = [item];\n used.add(i);\n const normalizedTitle = normalizeTitle(item.question);\n const tokens = new Set(tokenize(normalizedTitle));\n allItems.forEach((other, j) => {\n if (i !== j && !used.has(j)) {\n const otherNormalized = normalizeTitle(other.question);\n const otherTokens = new Set(tokenize(otherNormalized));\n const isCrossSource = item.source !== other.source;\n const threshold = isCrossSource ? 0.6 : 0.82;\n let canGroup = jaccardSimilarity(tokens, otherTokens) >= threshold;\n if (!isCrossSource && item.source === 'polymarket' && other.source === 'polymarket') {\n const itemEventSlug = item.eventSlug;\n const otherEventSlug = other.eventSlug;\n if (itemEventSlug && otherEventSlug) {\n canGroup = canGroup && itemEventSlug === otherEventSlug;\n } else if (itemEventSlug || otherEventSlug) {\n canGroup = false;\n }\n }\n if (canGroup) {\n group.push(other);\n used.add(j);\n }\n }\n });\n groups.push(group);\n });\n const groupedMarkets = groups.map(group => {\n const yesProbs = group.map(item => Number(item.yesProb) || 0);\n const maxProb = Math.max(...yesProbs);\n const minProb = Math.min(...yesProbs);\n const bestItem = group.find(item => (Number(item.yesProb) || 0) === maxProb);\n const otherSources = group.filter(item => item !== bestItem).map(item => `${item.source} ${((Number(item.yesProb) || 0) * 100).toFixed(1)}%`).join(' / ');\n return {\n question: bestItem.question,\n bestYesProb: maxProb,\n bestSource: bestItem.source,\n spreadPct: (maxProb - minProb) * 100,\n volume24h: group.reduce((sum, item) => sum + (item.volume24h || 0), 0),\n url: bestItem.url,\n marketUrl: bestItem.marketUrl,\n eventUrl: bestItem.eventUrl,\n linkType: bestItem.linkType,\n linkIds: bestItem.linkIds,\n otherSources,\n closeTime: bestItem.closeTime,\n groupSize: group.length\n };\n });\n setMarkets(groupedMarkets);\n }\n } catch (err) {\n setError('Network error occurred');\n setMarkets([]);\n setScannedCount(0);\n }\n setLoading(false);\n }, []);\n useEffect(() => {\n fetchData();\n }, [fetchData]);\n useEffect(() => {\n if (!autoRefresh) return;\n const interval = setInterval(fetchData, 60000);\n return () => clearInterval(interval);\n }, [autoRefresh, fetchData]);\n const filteredMarkets = useMemo(() => {\n return markets.filter(market => {\n const matchesSearch = market.question.toLowerCase().includes(search.toLowerCase());\n const matchesVolume = market.volume24h >= minVolume;\n const matchesSpread = market.spreadPct >= minSpread;\n return matchesSearch && matchesVolume && matchesSpread;\n });\n }, [markets, search, minVolume, minSpread]);\n const sortedMarkets = useMemo(() => {\n return [...filteredMarkets].sort((a, b) => {\n let aVal = a[sortBy];\n let bVal = b[sortBy];\n if (sortBy === 'question') {\n aVal = (aVal || '').toLowerCase();\n bVal = (bVal || '').toLowerCase();\n } else {\n aVal = isNaN(aVal) || aVal == null ? 0 : Number(aVal);\n bVal = isNaN(bVal) || bVal == null ? 0 : Number(bVal);\n }\n if (sortOrder === 'asc') {\n return aVal > bVal ? 1 : -1;\n } else {\n return aVal < bVal ? 1 : -1;\n }\n });\n }, [filteredMarkets, sortBy, sortOrder]);\n const handleSort = column => {\n if (sortBy === column) {\n setSortOrder(sortOrder === 'asc' ? 'desc' : 'asc');\n } else {\n setSortBy(column);\n setSortOrder('desc');\n }\n };\n const resetFilters = () => {\n setSearch('');\n setMinVolume(0);\n setMinSpread(0);\n };\n return

\n {}\n

Crossbook: Cross-platform Prediction Market Terminal

Real-time arbitrage opportunities across Manifold Markets and Polymarket

\n {}\n

\n Search\n \n setSearch(e.target.value)} className=\"h-10 w-full bg-gray-700 border border-gray-600 rounded-lg pl-10 pr-3 focus:outline-none focus:ring-2 focus:ring-blue-500\" />\n

\n Min Volume\n setMinVolume(Number(e.target.value))} className=\"h-10 w-full bg-gray-700 border border-gray-600 rounded-lg px-3 focus:outline-none focus:ring-2 focus:ring-blue-500\" />\n

\n Min Spread %\n setMinSpread(Number(e.target.value))} className=\"h-10 w-full bg-gray-700 border border-gray-600 rounded-lg px-3 focus:outline-none focus:ring-2 focus:ring-blue-500\" />\n

\n \n

\n \n setAutoRefresh(e.target.checked)} className=\"mr-2\" />\n Auto Refresh (60s)\n \n \n

\n {}\n {error &&

{error}

}\n {}\n {loading &&

\n \n Loading markets...\n

}\n {}\n {!loading && sortedMarkets.length > 0 &&

\n \n \n \n \n \n \n \n \n \n \n \n \n \n {sortedMarkets.map((market, index) => \n \n \n \n \n \n \n \n )}\n \n

handleSort('question')}>\n Event\n {sortBy === 'question' && {sortOrder === 'asc' ? '↑' : '↓'}}\n	handleSort('bestYesProb')}>\n Best YES %\n {sortBy === 'bestYesProb' && {sortOrder === 'asc' ? '↑' : '↓'}}\n	Best Source	handleSort('spreadPct')}>\n Spread %\n {sortBy === 'spreadPct' && {sortOrder === 'asc' ? '↑' : '↓'}}\n	handleSort('volume24h')}>\n 24h Vol\n {sortBy === 'volume24h' && {sortOrder === 'asc' ? '↑' : '↓'}}\n	Link	Others
\n \n {market.question}\n {market.groupSize > 1 && \n ×{market.groupSize}\n }\n \n	\n {(market.bestYesProb * 100).toFixed(2)}%\n	\n \n {market.bestSource}\n \n	\n {market.spreadPct.toFixed(2)}%\n	\n {formatVolume(market.volume24h)}\n	\n \n {market.marketUrl && market.eventUrl ? <>\n \n Market\n \n \n Event\n \n : \n \n }\n {market.bestSource === 'polymarket' && \n Search\n }\n \n	\n {market.otherSources \|\| '-'}\n

}\n {}\n {!loading && sortedMarkets.length === 0 &&

No markets found

Try adjusting your filters or refresh the data

}\n {}\n

Scanned markets: {scannedCount} • Grouped events: {filteredMarkets.length}

;\n}","packageJson","{\"dependencies\":{\"react\":\"18.2.0\",\"lucide-react\":\"0.441.0\"}}","appFunctions",[],"token","upstreamApp","isLordOfDev","analytics",[84,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118],{"_85":86,"_87":60},"day","2025-08-21","runCount",{"_85":89,"_87":60},"2025-08-22",{"_85":91,"_87":60},"2025-08-23",{"_85":93,"_87":60},"2025-08-24",{"_85":95,"_87":60},"2025-08-25",{"_85":97,"_87":60},"2025-08-26",{"_85":99,"_87":60},"2025-08-27",{"_85":101,"_87":60},"2025-08-28",{"_85":103,"_87":60},"2025-08-29",{"_85":105,"_87":60},"2025-08-30",{"_85":107,"_87":60},"2025-08-31",{"_85":109,"_87":60},"2025-09-01",{"_85":111,"_87":60},"2025-09-02",{"_85":113,"_87":60},"2025-09-03",{"_85":111,"_87":115},5,{"_85":113,"_87":117},11,{"_85":119,"_87":120},"2025-09-04",2,"snapshot","ogImage","https://cdn.dev.fun/og/image/1fb23ffe0df8ea85f076/1bb94cca.webp","isDevbase","project",{"_14":19,"_127":-5,"_20":21,"_128":129,"_22":23},"image","oneliner","Real-time market arbitrage","actionData","errors"]

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