{"uid":"cap_k3IiXWsGtmJS4PWYoLiyF","slug":"4sec-crypto-volatility-index-api-e35db1b7","name":"4SEC Crypto Volatility Index API","description":"Real-time multi-DEX aggregated crypto market data. Pay per request with USDC on Base via x402 protocol.","url":"https://api.foursec.xyz/volatility-index/%7Bsymbol%7D","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"object","example":{"symbol":{"type":"string"},"risk_metrics":{"type":"object"},"volatility_index":{"type":"number"},"volatility_category":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ndGn9VTBD3AEnZW1-psF_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a real-time volatility index score and risk metrics for a given crypto token symbol, aggregated across multiple DEXes.","exampleAgentPrompt":"What's the current volatility index and risk category for ETH right now — pull it from the multi-DEX aggregated data?","exampleUseCases":[{"title":"Pre-trade risk check for token","prompt":"Before I swap into PEPE, can you check its volatility index and tell me what risk category it falls into based on current DEX data?"},{"title":"Portfolio volatility monitoring","prompt":"I'm holding SOL, AVAX, and ARB — can you pull the current volatility index for each and flag any that are in a high or extreme volatility category?"},{"title":"DeFi alert system setup","prompt":"What's the volatility index for UNI right now? I want to know if it's crossed into a high-risk zone so I can decide whether to reduce my position."}],"resultDescription":"A JSON object containing the queried token symbol, a numeric volatility index value, a categorical volatility label (e.g. low/medium/high), and a risk_metrics object with supporting risk detail — all aggregated from live multi-DEX data.","failureModes":["Unknown or unsupported token symbol returns an error or empty result","Payment failure via x402 protocol (insufficient USDC balance or incorrect payment header) returns HTTP 402","Rate limiting or network issues may return 5xx errors","Symbol format mismatch (e.g. lowercase vs uppercase) may cause lookup failures"],"whenToPreferThis":"Choose this endpoint when you need a real-time, aggregated volatility signal for a specific crypto token across multiple DEXes — especially useful for pre-trade risk assessment or monitoring DeFi positions. Prefer over single-exchange data sources when cross-DEX aggregation matters for accuracy.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T11:28:55.255Z","isFirstParty":false}