{"uid":"cap_QNlGgKa5QoqoGnbnZaSv0","slug":"crypto-fear-greed-index-8335ce45","name":"Crypto Fear & Greed Index","description":"Crypto Fear & Greed Index: current reading (0-100, Extreme Fear to Extreme Greed) plus 7-day and 30-day sentiment trend (rising/falling/flat with the average and point change), not just a single snapshot number. Not ticker-specific. Data from alternative.me. $0.01/call.","url":"https://www.x402financialdata.com/fear-greed","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"limit":{"type":"integer","description":"Days of history to return, default 30."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_f94mw-ZD9_GsZRSKT124n","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current crypto market Fear & Greed Index reading (0–100) plus 7-day and 30-day sentiment trend analysis (direction, average, and point change) sourced from alternative.me.","exampleAgentPrompt":"What's the current crypto Fear & Greed Index score, and has overall market sentiment been rising or falling over the past 30 days?","exampleUseCases":[{"title":"Daily crypto trading sentiment check","prompt":"Pull the current Fear & Greed Index for crypto and tell me whether sentiment has been trending more fearful or greedy over the last 30 days — I want to know the average score and how many points it's moved."},{"title":"Contrarian buy signal detection","prompt":"Is crypto sentiment in extreme fear territory right now? Give me today's Fear & Greed score and the 7-day trend so I can decide if this might be a contrarian buying opportunity."},{"title":"Automated weekly sentiment report","prompt":"Get me the latest crypto Fear & Greed Index reading along with the 7-day and 30-day sentiment trends — I want to include this in my weekly crypto market summary for my newsletter."}],"resultDescription":"Returns the current Fear & Greed Index value (0–100 mapped to labels like Extreme Fear, Fear, Neutral, Greed, Extreme Greed), plus 7-day and 30-day sentiment trend summaries including the trend direction (rising/falling/flat), the average score over the period, and the net point change across the window. Optionally returns historical daily readings if a limit parameter is provided.","failureModes":["Upstream alternative.me API unavailability may cause stale or missing data","Invalid limit parameter type returns a validation error","No ticker-specific filtering is supported — index is market-wide only","Payment failure (insufficient USDC) returns a 402 error"],"whenToPreferThis":"Choose this endpoint when you need a real-time, market-wide crypto sentiment signal with trend context — not just a single number snapshot. Ideal for trading dashboards, contrarian signal detection, or periodic sentiment reporting workflows. Prefer over raw alternative.me API when you need the 7-day and 30-day trend analysis pre-computed in one call. Not suitable for ticker-specific sentiment or equity market sentiment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:55:12.853Z","isFirstParty":false}