{"uid":"cap_5mPTDXP6fo-v1GxK511xn","slug":"x402-coinstats-app-b7010bd6","name":"CoinStats Fear & Greed Index Historical Chart","description":"CoinStats Fear & Greed Index historical chart — market sentiment over time","url":"https://x402.coinstats.app/insights/fear-and-greed/chart","method":"GET","headers":{},"bodySchema":{"properties":{"input":{"required":["method"],"properties":{"method":{"enum":["GET"],"type":"string"}}}}},"responseSchema":null,"example":{"request":{"days":90},"response":{"_truncated":true,"_originalSize":25726}},"exampleRequest":{"days":90},"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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_sEjiPKLB4CxUVIBToAhVk","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 historical Fear & Greed Index values over a specified number of days, showing crypto market sentiment over time","exampleAgentPrompt":"Show me the CoinStats Fear & Greed Index chart for the last 90 days so I can see how crypto market sentiment has shifted over time.","exampleUseCases":null,"resultDescription":"An array of historical data points containing Fear & Greed Index scores and timestamps, covering the requested number of days, representing market sentiment progression from extreme fear to extreme greed.","failureModes":["Invalid days parameter returns error","Days value too large may be capped or return partial data","Payment failure (402) if x402 USDC payment not processed","Missing or malformed request returns 400 bad request","Service unavailable returns 503"],"whenToPreferThis":"Use this endpoint when you need historical Fear & Greed Index data from CoinStats over a configurable time window. Prefer this over generic market data endpoints when specifically tracking crypto sentiment trends or building charts of market psychology over time.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:36:47.341Z","isFirstParty":false}