{"uid":"cap_APAIz3946wn2tgQbR_-ub","slug":"quantx402-news-headlines-with-tone-scores-f68b4511","name":"QuantX402 News Headlines with Tone Scores","description":"News: recent headlines for one symbol from our own news pipeline, each with a tone score, plus the average tone. Empty results are reported as empty (never charged), not as neutral. Experimental. Not financial advice.","url":"https://quantx402.app/api/v1/news?utm_source=zero.xyz","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":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["symbol"],"properties":{"hours":{"type":"integer","maximum":168,"minimum":1},"limit":{"type":"integer","maximum":100,"minimum":1},"symbol":{"type":"string","description":"Crypto pair (BTC-USD, ETH-USD, SOL-USD, XRP-USD, BNB-USD, DOGE-USD, ADA-USD, AVAX-USD, LINK-USD, SUI-USD) or stock/ETF (SPY, QQQ, AAPL, NVDA, TSLA, MSFT, AMZN, META, GOOGL, IWM, DIA)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_V9cEdf5SnrTyjHidzE7EA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches recent news headlines for a crypto or stock/ETF symbol, each scored for tone, plus an average tone across all results","exampleAgentPrompt":"Can you pull the latest news headlines for BTC-USD from the past 48 hours and show me each one with its tone score plus the overall average tone?","exampleUseCases":[{"title":"Crypto news tone check before trading","prompt":"Get me the most recent 20 news headlines for ETH-USD from the last 24 hours and show me their tone scores — I want to see if sentiment is bullish or bearish before I make a move."},{"title":"Stock earnings news mood scan","prompt":"Pull the latest NVDA news headlines from the past 72 hours, score them by tone, and give me the average tone so I can gauge how the market is feeling about the stock."},{"title":"Monitoring news for altcoin alert","prompt":"Fetch recent news for SOL-USD over the last 48 hours with tone scores — I want to know if there's been anything notably negative or positive hitting the wire."}],"resultDescription":"Returns a list of recent news headlines for the requested symbol, each accompanied by a numeric tone score indicating positive or negative sentiment, along with an aggregated average tone across all returned items. If no news is found, an empty result is returned rather than a neutral placeholder (and no charge is applied).","failureModes":["Symbol not supported — only specific crypto pairs and stock/ETF tickers are accepted","hours parameter out of range (must be 1–168)","limit parameter out of range (must be 1–100)","No news found for symbol in requested time window — returns empty, no charge","Payment failure via x402 protocol — call not processed","Service unavailable or upstream news pipeline error"],"whenToPreferThis":"Choose this endpoint when you need per-headline tone scores alongside raw news content for a specific supported symbol, especially when you want to distinguish between a genuine absence of news (empty) and neutral sentiment. Prefer it over generic news APIs when you need structured tone scoring integrated directly with market-relevant crypto and equity symbols, and when pay-per-call pricing ($0.01 USDC) is acceptable for on-demand, low-latency lookups.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:33:37.693Z","isFirstParty":false,"canonicalSlug":"quantx402-news-headlines-with-tone-scores-f68b4511"}