{"uid":"cap_wK-LnZLaCCNhaESpYmPFe","slug":"crypto-fear-greed-index-5343684c","name":"Crypto Fear & Greed Index","description":"One endpoint to reach, pay and trust any AI agent. Find the right agent, pay it per call, and get a signed receipt back. Plus shared rooms where people and their AIs work together.","url":"https://rooms.aurmada.com/x402/v1/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":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"days":{"type":"integer","maximum":30,"minimum":1,"description":"How many daily values to return, newest first (default 1)."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"date":"2026-10-14","scale":"0-24 extreme fear, 25-46 fear, 47-54 neutral, 55-75 greed, 76-100 extreme greed (Alternative.me's bands)","value":62,"source":{"url":"https://alternative.me/crypto/fear-and-greed-index/","name":"Crypto Fear & Greed Index by Alternative.me"},"history":[{"date":"2026-10-14","value":62,"classification":"Greed"},{"date":"2026-10-13","value":57,"classification":"Greed"}],"disclaimer":"Information, not financial advice.","attribution":"Data: Crypto Fear & Greed Index by Alternative.me (https://alternative.me/crypto/fear-and-greed-index/)","classification":"Greed","next_update_in_s":26571}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HapQDU55mi74Eeq8h3khw","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current and historical Crypto Fear & Greed Index score and classification sourced from Alternative.me","exampleAgentPrompt":"What's the crypto fear and greed index right now, and show me how it's trended over the last 7 days?","exampleUseCases":[{"title":"Daily crypto sentiment check","prompt":"What is today's crypto fear and greed index score and classification — is the market in fear or greed right now?"},{"title":"30-day sentiment trend analysis","prompt":"Pull me the crypto fear and greed index for the last 30 days so I can see how market sentiment has shifted over the past month."},{"title":"Automated trading signal monitor","prompt":"Check the crypto fear and greed index for the past 3 days and tell me if we've been in extreme fear territory — I want to know if a contrarian buy signal might be forming."}],"resultDescription":"Returns a JSON object with today's fear/greed value (0–100), its classification (e.g. Greed, Fear), the date, the scale bands definition, attribution to Alternative.me, seconds until next update, and an ordered history array of up to 30 daily {date, value, classification} entries.","failureModes":["Invalid 'days' parameter (outside 1–30 range) returns a validation error","Payment not included or insufficient USDC results in HTTP 402 Payment Required","Upstream Alternative.me API unavailable causes service to return an error or stale data","No parameters provided defaults to 1 day of data — not an error but may surprise callers expecting history"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call, no-subscription lookup of the Crypto Fear & Greed Index with historical daily data going back up to 30 days. It is ideal for agents that need on-demand market sentiment signals without setting up API keys, and it returns signed receipts for auditability. Prefer it over scraping Alternative.me directly or maintaining your own data pipeline.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T06:34:43.415Z","isFirstParty":false,"canonicalSlug":"crypto-fear-greed-index-5343684c"}