{"uid":"cap_amvI71csCVCk9nAE4b_wE","slug":"x402-crypto-research-api-btc-brief-73aecc39","name":"x402 Crypto Research API – BTC Brief","description":"Pay-per-call BTC/ETH briefs via x402","url":"https://x402-research-iota.vercel.app/api/brief/btc?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"asset":"BTC","price":80631.35,"rsi14":43.71,"sma20":82531.74,"sma50":81794.82,"trend":{"score":-1,"signal":"neutral","rsiState":"neutral"},"sentiment":{"classification":"Neutral","fearGreedIndex":51},"disclaimer":"Informational only, not financial advice.","change7dPct":-0.92,"change24hPct":-0.55}},"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":"unknown","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_HJ639O3N5riPzZS5oZraJ","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 pay-per-call Bitcoin market brief including price, RSI, moving averages, trend signal, and sentiment data","exampleAgentPrompt":"Can you pull me a quick Bitcoin brief — current price, RSI, trend signal, and fear & greed index?","exampleUseCases":[{"title":"Morning crypto portfolio check","prompt":"What's Bitcoin looking like right now? Give me the price, trend signal, and whether RSI is in neutral, overbought, or oversold territory."},{"title":"Automated trading signal monitor","prompt":"Check the BTC brief and tell me if the trend score and RSI suggest a neutral, bullish, or bearish posture — I want to decide whether to rebalance today."},{"title":"Sentiment-aware market summary","prompt":"I'm writing a quick crypto update — what's the current Bitcoin fear & greed index, sentiment classification, and how much has BTC moved in the last 24 hours and 7 days?"}],"resultDescription":"A JSON object containing BTC's current price, 14-day RSI, 20-day and 50-day simple moving averages, a trend score and signal label (e.g. 'neutral'), RSI state, sentiment classification, fear & greed index value, 24-hour and 7-day percentage price changes, and an informational disclaimer.","failureModes":["Payment not completed or x402 authorization fails — endpoint returns 402 Payment Required","Upstream price/sentiment data provider is unavailable — may return stale or error response","Malformed request or unsupported asset path — returns 404 or 400","Network timeout from Vercel serverless cold start — retry typically resolves"],"whenToPreferThis":"Choose this endpoint when you need a compact, all-in-one Bitcoin market snapshot including technicals (RSI, SMAs), trend signals, and sentiment (fear & greed index) in a single cheap call ($0.03 USDC). Prefer it over general market data APIs when you want pre-computed trend classification and sentiment bundled together without assembling multiple data sources yourself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:36:12.607Z","isFirstParty":false,"canonicalSlug":"x402-crypto-research-api-btc-brief-73aecc39"}