{"uid":"cap_4WnEBAU6UbUEgnFTA42ng","slug":"crypto-market-pulse-x402-054c4ea5","name":"Crypto Market Pulse (x402)","description":"Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.","url":"https://kr-x402-mvp.kgy5612.workers.dev/api/market-pulse?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","properties":{},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"kimchi":{"BTC":{"premium_pct_fx":1.15}},"prices":{"BTC":{"price_usd":80867.7,"change_24h_pct":0.8}},"regime":"neutral","funding":{"BTC":{"funding_apr_pct":9.1,"open_interest_usd":2426000000}},"reasons":["Fear & Greed 51 Neutral","BTC 24h +0.8%","BTC funding APR 9.1%"],"fear_greed":{"label":"Neutral","value":51},"updated_at":"2026-10-29T08:30:00Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_uJV_8LKcH50PUZxLALEva","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","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 crypto market pulse snapshot including BTC/ETH prices, Fear & Greed index, Hyperliquid funding rates, open interest, and kimchi premium — paid per-call via x402 USDC.","exampleAgentPrompt":"Give me a quick crypto market pulse — BTC price, current Fear & Greed reading, Hyperliquid funding rate, and whether there's a kimchi premium worth noting.","exampleUseCases":[{"title":"Pre-trade market regime check","prompt":"Before I open a BTC long, can you pull the current market pulse — I want to see the regime, Fear & Greed score, and BTC funding APR to make sure conditions aren't overheated."},{"title":"Kimchi arbitrage opportunity scan","prompt":"Check whether the BTC kimchi premium is elevated right now — I'm looking for cross-exchange arbitrage opportunities and need the current premium percentage."},{"title":"Automated trading bot context feed","prompt":"Fetch the latest crypto market snapshot for my trading agent — I need BTC price, 24h change, Hyperliquid open interest, funding rate, and the overall market regime label."}],"resultDescription":"A JSON object containing: current BTC (and potentially other token) prices with 24h % change, a market regime string (e.g. 'neutral', 'risk-on', 'risk-off'), Fear & Greed index value and label, Hyperliquid BTC funding APR and open interest in USD, kimchi premium percentage for BTC, a list of human-readable reason bullets summarizing conditions, and an updated_at ISO timestamp.","failureModes":["Payment not accepted or insufficient USDC balance — x402 payment handshake fails, returning 402 Payment Required","Upstream data source unavailable — stale or missing prices/funding data","Rate limiting or worker timeout — Cloudflare Worker returns 5xx","Malformed request — unexpected query parameters may cause rejection","Network latency spike from aggregating multiple upstream sources"],"whenToPreferThis":"Prefer this endpoint when your AI agent needs a single, consolidated crypto market context snapshot without managing multiple API keys across CoinGecko, Hyperliquid, and sentiment providers. Ideal for trading agents that need regime awareness, funding rate checks, and sentiment data in one pay-per-call micro-transaction via x402 USDC on Base. Best suited for agents that call infrequently (spot checks before decisions) rather than high-frequency streaming needs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:41:44.249Z","isFirstParty":false,"canonicalSlug":"crypto-market-pulse-x402-054c4ea5"}