{"uid":"cap_EpTUmv-D-rkFl0spzPdPZ","slug":"crypto-fear-greed-index-d38ae0fa","name":"Crypto Fear & Greed Index","description":"Crypto market sentiment check: the Fear and Greed index with yesterday's value; ?days=7 adds a daily history so you can see whether sentiment is turning","url":"https://agenttoll.app/api/feargreed","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","properties":{"days":{"type":"integer","maximum":30,"minimum":1,"description":"Optional. Add this many days of daily history"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"at":"2026-08-05T13:32:14.339Z","days":7,"value":27,"history":[{"date":"2026-08-05T00:00:00.000Z","value":27,"classification":"Fear"}],"yesterday":25,"classification":"Fear"}},"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_8dahjGJyE8HrDl2Y4vWDz","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 Crypto Fear & Greed index value with a comparison to yesterday's value, plus optional daily history up to 30 days","exampleAgentPrompt":"What's the current crypto fear and greed index, and how does it compare to yesterday? Also pull the last 7 days of history so I can see the trend.","exampleUseCases":[{"title":"Daily trading sentiment check","prompt":"What's the crypto fear and greed index right now compared to yesterday? I want to know if sentiment is shifting before I make any trades."},{"title":"Weekly sentiment trend analysis","prompt":"Pull the fear and greed index for the last 14 days so I can see whether the crypto market has been getting more fearful or greedy over the past two weeks."},{"title":"Automated market mood alert","prompt":"Check the current crypto fear and greed index and yesterday's value — if the sentiment label changed (e.g. from Fear to Greed), flag it for me."}],"resultDescription":"Returns the current Fear & Greed index numeric score and sentiment label (e.g. Fear, Extreme Greed), yesterday's score for comparison, and optionally an array of daily historical values for up to 30 prior days.","failureModes":["Invalid 'days' parameter outside 1-30 range returns a validation error","Payment not processed (x402 payment required error) if USDC payment fails","Service unavailability if upstream sentiment data source is down","Empty or stale data if the index has not yet been updated for the current day"],"whenToPreferThis":"Use this endpoint when you need a quick, single-call snapshot of crypto market sentiment including a built-in yesterday comparison and optional short-term history. It is ideal for trading agents, daily briefing bots, or sentiment monitors that need the fear and greed index without building their own aggregation logic.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:42:35.811Z","isFirstParty":false}