{"uid":"cap_qasVANFMDAXrG6pPt_Mz7","slug":"money-reactor-crypto-fear-greed-index-676b734d","name":"Money Reactor — Crypto Fear & Greed Index","description":"22 agent-native micro APIs paid per call in USDC on Base via x402: funded bounty radar, honeypot trust scoring, token safety verdicts, crypto prices, multi-asset price snapshots, fear & greed index, full market-pulse snapshot, AI chat completion (Llama 3.1), crypto news, weather, web reader, ERC-20 balances. No accounts, no API keys — instant on-chain settlement.","url":"https://mr-river8.makar52nn2016.workers.dev/api/fear-greed?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"value":71,"source":"alternative.me","weekAgo":{"value":55,"classification":"Neutral"},"yesterday":{"value":68,"classification":"Greed"},"historyDays10":[{"value":71,"classification":"Greed"}],"classification":"Greed"}},"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_oPlhTwYyY0Ssz7i2I3_UP","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 score, classification, and recent historical values, paid per call in USDC on Base via x402.","exampleAgentPrompt":"What's the current Crypto Fear & Greed Index score right now, and how does it compare to yesterday and a week ago?","exampleUseCases":[{"title":"Pre-trade sentiment check for crypto bot","prompt":"Before placing any trades, tell me whether the crypto market is currently in fear or greed, and give me the score for today versus yesterday."},{"title":"Weekly market mood report","prompt":"Pull the Crypto Fear & Greed Index for today and the last 10 days so I can include it in my weekly crypto newsletter summary."},{"title":"Contrarian buy-signal alert","prompt":"Check the current Crypto Fear & Greed Index — if it's in Extreme Fear (below 25), let me know so I can consider it a contrarian buy signal."}],"resultDescription":"Returns a JSON object with the current Fear & Greed Index numeric value (0–100), its textual classification (e.g. 'Greed', 'Fear', 'Neutral'), yesterday's value and classification, the value from 7 days ago with classification, and an array of the last 10 days of daily readings with values and classifications. Sourced from alternative.me.","failureModes":["Payment not received or x402 handshake fails — returns 402 Payment Required","Upstream alternative.me API unavailable — returns 5xx or empty data","Malformed request — returns 400 Bad Request","Network timeout from Cloudflare Worker — returns 504"],"whenToPreferThis":"Choose this endpoint when you need a quick, no-account, no-API-key sentiment gauge for the overall crypto market, billed at $0.001 USDC per call on Base. Prefer it over free alternatives when operating in an x402-native agent stack where on-chain micropayments are already set up and you need the fear & greed metric alongside other Money Reactor data (prices, news, etc.) in a single provider ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:34:19.936Z","isFirstParty":false,"canonicalSlug":"money-reactor-crypto-fear-greed-index-676b734d"}