{"uid":"cap_39WuwPcsY2trj-t310Qlq","slug":"strale-fear-greed-index-b53d4010","name":"Strale Fear & Greed Index","description":"The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.","url":"https://api.strale.io/x402/v2/fear-greed-index","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","properties":{"days":{"type":"number","description":"Number of days of history (1-30). Default: 1"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0216","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":"$0.0216/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0216","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0216","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_a-9NAWDswGSN8ArDaTN-1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0216","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 and historical readings for up to 30 days, with an auditable cryptographic chain record.","exampleAgentPrompt":"What's the current Crypto Fear & Greed Index, and can you pull the last 7 days of history so I can see how market sentiment has trended?","exampleUseCases":[{"title":"Daily crypto sentiment check","prompt":"What's today's Fear & Greed Index for the crypto market? I want to know if we're in fear or greed territory right now."},{"title":"30-day sentiment trend analysis","prompt":"Pull the Fear & Greed Index readings for the last 30 days — I want to see how crypto market sentiment has shifted over the past month."},{"title":"Trading decision context","prompt":"Before I make any moves, can you grab the last 14 days of the Crypto Fear & Greed Index so I can see whether the market has been trending fearful or greedy lately?"}],"resultDescription":"Returns the current Fear & Greed Index numeric score (typically 0–100) and its corresponding sentiment label (e.g. Extreme Fear, Fear, Neutral, Greed, Extreme Greed), plus historical daily readings if more than 1 day is requested. Each response includes an audit record with a cryptographic chain hash for verifiability.","failureModes":["days parameter out of range (must be 1–30) returns a validation error","x402 payment failure if USDC balance is insufficient","upstream data source unavailable returns a 503 or error payload","invalid query parameter type causes schema validation rejection"],"whenToPreferThis":"Choose this endpoint when you need a trusted, auditable crypto market sentiment reading with cryptographic provenance — especially in agentic workflows where auditability matters. Useful when you want both a current snapshot and recent historical trend in a single call. Prefer over raw exchange data feeds when you need a normalized sentiment score rather than price data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:53:36.713Z","isFirstParty":false}