{"uid":"cap_GGvjXjX6Hvv9jCbcJVhn8","slug":"basebuilder-sentiment-fear-greed-index-002c78c2","name":"BaseBuilder Sentiment Fear & Greed Index","description":"BaseBuilder Sentiment API hub - 14 paid endpoints","url":"https://bb-sentiment.vercel.app/api/sentiment/fear-greed","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.161038","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":"$0.161038/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.161038","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.161038","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6kLDM_dq8eB6rAVyP2DWR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.161038","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 score and sentiment classification for market mood analysis","exampleAgentPrompt":"What's the current crypto fear and greed index score right now — is the market in extreme fear, fear, neutral, greed, or extreme greed?","exampleUseCases":[{"title":"Trading strategy entry point analyzer","prompt":"Check the fear and greed index for me — if we're in extreme fear territory, flag it as a potential buy signal for my portfolio."},{"title":"Portfolio rebalancing decision support","prompt":"What's the current market sentiment reading? I want to know if we should be aggressive or cautious with rebalancing based on whether fear or greed is dominating right now."},{"title":"Market timing dashboard alerts","prompt":"Pull the latest fear and greed score and tell me if it's shifted significantly from yesterday — I need to know if sentiment is swinging toward either extreme so I can adjust my positions."}],"resultDescription":"A fear and greed index score (typically 0-100) along with a sentiment classification label such as 'Extreme Fear', 'Fear', 'Neutral', 'Greed', or 'Extreme Greed', representing the current overall mood of the cryptocurrency market.","failureModes":["Payment not provided or insufficient USDC — returns 402 Payment Required","Invalid or malformed POST body — returns 400 Bad Request","Upstream data source unavailable — returns 503 or 500 error","Rate limit exceeded — returns 429 Too Many Requests"],"whenToPreferThis":"Use this endpoint when you need a real-time or near-real-time fear and greed index score for the cryptocurrency market, especially when building trading assistants, portfolio analysis tools, or market mood dashboards that need a quick scalar sentiment signal rather than raw social media sentiment analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:37:41.548Z","isFirstParty":false}