{"uid":"cap_Ozw_DDH_xNdYdoaWc7MYl","slug":"vextorium-crypto-fear-greed-index-history-a56e75ec","name":"Vextorium Crypto Fear & Greed Index History","description":"Daily history of the crypto Fear & Greed Index (0 extreme fear, 100 extreme greed): average, max, min, days in each zone and trend, with the series. Alternative.me data.","url":"https://api.vextorium.com/v1/fear-greed-history?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"days":{"type":"integer","description":"2-2000 (default 30)"}}},"responseSchema":{"type":"json","example":{"avg":67.8,"max":78,"min":50,"days":30,"trend":"sube","series":[{"date":"2026-09-03","zone":"Greed","value":65},{"date":"2026-09-04","zone":"Greed","value":74}],"source":"Alternative.me Crypto Fear & Greed Index","current":{"date":"2026-10-02","zone":"Greed","value":72},"days_per_zone":{"Greed":27,"Neutral":2,"Extreme Greed":1}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Cd3m1J64xALzGU1GbU1HL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns historical Crypto Fear & Greed Index data including a time series, current value, trend, min/max/avg, and zone distribution over a configurable lookback window.","exampleAgentPrompt":"Pull the crypto fear and greed index history for the last 60 days — I want the current value, the trend, average score, and how many days we've been in each zone like Greed or Extreme Greed.","exampleUseCases":[{"title":"Daily crypto sentiment dashboard","prompt":"Give me the crypto fear and greed index for today plus a summary of the past 30 days — current value, whether it's trending up or down, and the average score."},{"title":"Backtesting market entry conditions","prompt":"I need the fear and greed index history for the last 200 days so I can check how often the market was in Extreme Fear and whether prices recovered afterward."},{"title":"Weekly sentiment report for investors","prompt":"Generate a weekly crypto sentiment summary using fear and greed data for the past 7 days — include the min, max, average, and which zones we spent the most time in."}],"resultDescription":"Returns a JSON object with: current index value, zone label (e.g. Greed), and date; a daily time series array with date, zone, and numeric value; aggregate stats (avg, min, max, days count); a trend string; a breakdown of how many days fell into each zone (Greed, Neutral, Extreme Greed); and the data source attribution (Alternative.me).","failureModes":["days parameter out of range (must be 2–2000) may return an error or default behavior","No data available for very recent dates may result in incomplete series","Network or provider-side outage returns a 5xx error","Invalid body type or malformed JSON body returns a 400 error"],"whenToPreferThis":"Choose this endpoint when you need structured historical Crypto Fear & Greed Index data with zone classification, trend direction, and aggregate statistics in a single call. Prefer it over scraping Alternative.me directly or building your own aggregation, especially when paying per-call in USDC via x402 is acceptable and you need the data in a clean, agent-ready JSON format.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T12:37:08.450Z","isFirstParty":false,"canonicalSlug":"vextorium-crypto-fear-greed-index-history-a56e75ec"}