{"uid":"cap_jux3YH3wdo_GfmfdaQA5-","slug":"crypto-news-headlines-with-sentiment-api-35f9f064","name":"Crypto News Headlines with Sentiment API","description":"Real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish..very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed. 0.001 USDC on Base. SYNTHORA.","url":"https://cryptonews.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"asset":{"type":"string","description":"Optional ticker to filter headlines, e.g. BTC, ETH, SOL"},"limit":{"type":"integer","maximum":50,"minimum":1,"description":"Max headlines to return (default 10)"}}},"responseSchema":{"type":"json","example":{"ok":true,"niche":"cryptonews","result":{"asset":"BTC","count":2,"sources":["CryptoPanic","CoinDesk","CoinTelegraph","Decrypt","BitcoinMagazine"],"headlines":[{"ts":"2026-07-08T09:12:00+00:00","url":"https://www.coindesk.com/example","score":2.31,"title":"Bitcoin surges past resistance as ETF inflows hit record","source":"CoinDesk","sentiment":"very_bullish"},{"ts":"2026-07-08T08:40:00+00:00","url":"https://cointelegraph.com/example","score":1.08,"title":"Analysts warn of BTC pullback risk near key level","source":"CoinTelegraph","sentiment":"bearish"}],"generated_at":"2026-07-08T09:15:00+00:00","sentiment_score":0.42,"overall_sentiment":"bullish"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_of6Sz1Acpl3wCnyAjiAhs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Aggregates and deduplicates real-time crypto news headlines from major RSS feeds, scoring each with bull/bear sentiment and filtering by asset ticker.","exampleAgentPrompt":"Pull the top 10 BTC headlines right now with their bull/bear sentiment scores — I want to know if the market mood is leaning bullish or bearish before I place a trade.","exampleUseCases":null,"resultDescription":"Returns a ranked, deduplicated list of crypto news headlines (up to 50), each with a lexical sentiment label (very_bullish, bullish, neutral, bearish, very_bearish), source attribution (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine), freshness/importance weighting, and an overall aggregate market sentiment signal. Response is Ed25519-signed for authenticity.","failureModes":["Invalid asset ticker returns empty results or 400 error","Limit out of range (must be 1–50) returns validation error","RSS feed sources temporarily unavailable may yield stale or fewer headlines","Insufficient USDC balance on Base causes payment failure and no response","No headlines matching the requested asset filter returns empty list"],"whenToPreferThis":"Choose this endpoint when you need a fast, cheap ($0.001 USDC), real-time crypto news sentiment pulse aggregated from multiple authoritative sources without managing individual RSS feeds. Ideal for trading bots and quant agents that need a combined sentiment signal alongside headlines. Prefer over scraping individual news sites when you want deduplication, importance ranking, and a standardized bull/bear sentiment score in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:39:15.289Z","isFirstParty":false}