{"uid":"cap_Bg9yNh43kdFL9hoLDnGpu","slug":"manylives-crypto-fear-greed-index-a2ddf017","name":"ManyLives Crypto Fear & Greed Index","description":"Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable track records of 1,000 crypto strategies locked on the Base network, company profiles, quick AI and batch prices. Ask us to turn a public website into a JSON endpoint. Pay per call, no account, free trial.","url":"https://api.manylives.me/paid/crypto/fear-greed?utm_source=zero.xyz","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":{"type":"string","const":"GET"},"queryParams":{"type":"object","required":[],"properties":{"days":{"type":"string","examples":["7"],"description":"optional, history length (default 1, max 30)"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","properties":{"score":{"type":"number"},"history":{"type":"array","items":{"type":"object","properties":{"date":{"type":"string"},"score":{"type":"number"},"classification":{"type":"string"}}}},"classification":{"type":"string"}}}}}}},"responseSchema":{"type":"json","example":{"score":54,"history":[{"date":"2026-10-08","score":54,"classification":"Neutral"}],"classification":"Neutral"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_GQq8omrcFlB_-lmS-mj65","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","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 score and classification, with optional historical data for up to 30 days","exampleAgentPrompt":"What is today's crypto Fear & Greed Index score and classification — and also pull the last 7 days of history so I can see how sentiment has been trending?","exampleUseCases":[{"title":"Pre-trade sentiment check for crypto agent","prompt":"Before placing any trades today, check the crypto Fear & Greed Index and tell me whether the market is in fear or greed territory right now."},{"title":"Weekly sentiment trend review","prompt":"Pull the Fear & Greed Index scores for the past 7 days and summarize how crypto market sentiment has shifted over the week."},{"title":"Automated trading signal filter","prompt":"Get the current crypto Fear & Greed score — if it's below 25 (extreme fear) I want to know so I can consider a buy signal for my strategy."}],"resultDescription":"Returns a JSON object with the current numeric Fear & Greed score (0–100), a classification string (e.g. 'Neutral', 'Fear', 'Greed', 'Extreme Fear', 'Extreme Greed'), and optionally an array of historical daily records each containing date, score, and classification.","failureModes":["days parameter exceeds 30: may return error or be capped","Network or payment failure: 402 Payment Required if USDC payment not processed","Invalid query parameter type: unexpected string format may cause 400 error","Service unavailable: upstream data source outage may cause 503"],"whenToPreferThis":"Choose this endpoint when you need a quick, structured, pay-per-call sentiment indicator for crypto markets without setting up an account. Ideal for AI trading agents that need to gate decisions on market fear/greed levels or trend sentiment over a short historical window. Prefer it over scraping or free alternatives when you need reliable, verifiable data with on-chain payment provenance via the Base network.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T12:42:30.686Z","isFirstParty":false,"canonicalSlug":"manylives-crypto-fear-greed-index-a2ddf017"}