{"uid":"cap_85TXcD8DHiMw2hZb3KSPa","slug":"crypto-fear-greed-index-current-7-day-history-8ab09a8a","name":"Crypto Fear & Greed Index (Current + 7-Day History)","description":"Crypto Fear & Greed index: current value plus 7-day history. Market sentiment signal for trading agents.","url":"https://opportunity-api-production.up.railway.app/api/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"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BCFUqfFhGrnxFPwcjHwV1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","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 Fear & Greed index value plus its 7-day historical readings as a market sentiment signal for trading decisions.","exampleAgentPrompt":"What's the current crypto Fear & Greed index and how has it trended over the past 7 days?","exampleUseCases":null,"resultDescription":"Returns the current Fear & Greed index numeric value (0-100) with its sentiment label (e.g. Extreme Fear, Fear, Neutral, Greed, Extreme Greed), plus the last 7 daily readings with their values, labels, and timestamps.","failureModes":["Upstream data source unavailable — returns 5xx error","Payment not processed — returns 402 Payment Required","Rate limiting — too many calls in short period returns 429"],"whenToPreferThis":"Use this endpoint when a trading agent or workflow needs a quick, structured sentiment signal without building custom index logic. It covers both the current sentiment snapshot and short-term historical context in a single call, making it ideal for triggering trades, rebalancing, or filtering entry signals based on market mood.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:51:27.986Z","isFirstParty":false}