{"uid":"cap_ufjCyBnlZQ5qyIvSCnHwN","slug":"synthora-market-index-volatility-quote-yahoo-chart-2e30e141","name":"SYNTHORA Market Index / Volatility Quote (Yahoo Chart)","description":"Delayed quote and OHLC history for major indices and gauges such as the S&P 500 (^GSPC), VIX (^VIX) and CBOE 10Y yield (^TNX) from Yahoo's keyless chart endpoint (JSON). Serves autonomous risk-sentiment agents and agent-to-agent macro dashboards tracking broad-market benchmarks. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.","url":"https://yahoo-index-quote.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"range":{"type":"string","description":"range"},"symbol":{"type":"string","description":"symbol"},"interval":{"type":"string","description":"interval"}}},"responseSchema":{"type":"json","example":{"ok":true,"niche":"yahoo-index-quote","result":{}}},"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_GKJiKEpwK8oze5DXzoPTh","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 delayed OHLC price history and quotes for major market indices and volatility gauges (e.g. S&P 500, VIX, CBOE 10Y yield) via Yahoo Finance's chart endpoint.","exampleAgentPrompt":"Can you pull the VIX volatility index OHLC data for the past month using 1-day intervals so I can assess current market risk sentiment?","exampleUseCases":[{"title":"VIX spike alert for risk agent","prompt":"Fetch the VIX (^VIX) quote and its daily OHLC history for the last 3 months with 1-day intervals — I want to see if volatility has spiked above recent averages."},{"title":"S&P 500 intraday trend check","prompt":"Get me the S&P 500 (^GSPC) intraday price history for today using 5-minute intervals so I can see how the market has been moving throughout the session."},{"title":"CBOE 10Y yield macro dashboard","prompt":"Pull the CBOE 10-year yield index (^TNX) OHLC data for the past year with 1-week intervals for my macro dashboard tracking interest rate trends."}],"resultDescription":"A JSON object with an 'ok' boolean, a 'niche' identifier ('yahoo-index-quote'), and a 'result' object containing OHLC price history, timestamps, and quote data for the requested index symbol and time range, sourced from Yahoo Finance's chart endpoint.","failureModes":["Invalid or unsupported symbol (e.g. non-index ticker) returns empty or error result","Unsupported range/interval combination may yield no data","Yahoo Finance upstream rate limiting or downtime causes failure","Malformed request body missing required fields returns error","Stale or delayed data may not reflect real-time prices"],"whenToPreferThis":"Choose this endpoint when you need quick, keyless access to OHLC history or delayed quotes for major market indices and volatility gauges (^GSPC, ^VIX, ^TNX, etc.) without managing Yahoo Finance API credentials. Ideal for risk-sentiment agents, macro dashboards, and autonomous workflows that need broad-market benchmark data at low cost ($0.001/call via x402).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:37:59.811Z","isFirstParty":false}