{"uid":"cap_U9ZPO6rWsbTHDZfohjUkF","slug":"scriptmasterlabs-fear-greed-index-api-01bfa5ce","name":"ScriptMasterLabs Fear & Greed Index API","description":"Pay-per-call crypto, RWA, federal, SEC, and compliance APIs. Settled in USDC on Base via x402. Hyphen routes only (e.g. /x402/rwa-aggregates, /x402/gas-tracker).","url":"https://acp-x402-discovery.onrender.com/x402/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":{"type":"string"},"queryParams":{"type":"object","properties":{"limit":{"type":"integer","default":1,"example":1}}}}},"output":{"properties":{"example":{}}}}},"responseSchema":{"example":{}},"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_VO580FNFgliwxExzP-4xT","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 market Fear & Greed Index score and sentiment label, paid per-call in USDC via x402 protocol.","exampleAgentPrompt":"What's the current crypto Fear & Greed Index score right now — is the market in fear or greed?","exampleUseCases":[{"title":"Daily crypto sentiment check","prompt":"What is today's Fear & Greed Index for the crypto market? I want to know the score and whether it's in fear, greed, or neutral territory."},{"title":"Trading signal for DCA strategy","prompt":"Before I buy more ETH, can you pull the current Fear & Greed Index? I only want to buy when it's in extreme fear territory."},{"title":"Market mood for portfolio report","prompt":"I'm writing a weekly crypto portfolio update — grab the latest Fear & Greed Index score so I can include the current market sentiment reading."}],"resultDescription":"Returns the current Fear & Greed Index value (typically a 0–100 numeric score), a sentiment label such as 'Extreme Fear', 'Fear', 'Neutral', 'Greed', or 'Extreme Greed', and likely a timestamp. The number of results returned can be controlled via the `limit` query parameter.","failureModes":["Payment not settled — 402 response if USDC payment via x402 is not included or insufficient","Network timeout from hosted Render service (cold start latency on free tier)","Empty or malformed response schema — response schema is documented as an empty example object, so structure may be undocumented","Rate limiting or provider downtime if underlying data source is unavailable"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call crypto market sentiment signal settled in USDC on Base via the x402 protocol. Ideal for agents operating in crypto-native environments that already support x402 micropayments and need a quick Fear & Greed reading without a subscription. Prefer alternatives (e.g. free public APIs like Alternative.me) if x402 payment infrastructure is not available or if you need historical data beyond what the limit parameter provides.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:38:38.441Z","isFirstParty":false}