{"uid":"cap_si3ZPVMxqVRd_bf3fHkDI","slug":"crypto-multi-venue-price-feed-ada-usd-via-x402-2b4d9ef2","name":"Crypto Multi-Venue Price Feed (ADA/USD) via 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/crypto/price/ada-usd?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":{"symbols":{"type":"string","examples":["BTC,ETH,SOL","BTC"],"description":"Comma-separated symbols (default BTC,ETH,SOL)"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"prices":{"BTC":{"price_usd":80867.7,"binance_usdt":80860,"coinbase_usd":80875.4,"change_24h_pct":1.2}},"sources":["https://api.binance.com","https://api.coinbase.com"],"updated_at":"2026-10-28T11:00:00Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LsBsJoa5O8GODjXvmYWrc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns aggregated ADA/USD spot prices from multiple venues (Binance, Coinbase) with 24h change, paid per-call via x402 micropayment in USDC on Base.","exampleAgentPrompt":"Can you get me the current ADA/USD price across Binance and Coinbase, including the 24-hour change percentage?","exampleUseCases":[{"title":"Cardano price check for trading bot","prompt":"Fetch the latest ADA price in USD from multiple exchanges so I can decide whether to execute my Cardano trade right now."},{"title":"Multi-venue arbitrage monitoring","prompt":"What's the current ADA/USD price on Binance versus Coinbase? I want to see if there's a spread worth acting on."},{"title":"Onchain agent portfolio valuation","prompt":"Get me the current ADA-USD price with the 24h change so my agent can update the value of my Cardano holdings."}],"resultDescription":"A JSON object containing ADA price in USD from Binance (USDT) and Coinbase (USD), the 24-hour percentage change, a list of source URLs, and a timestamp of when the data was last updated.","failureModes":["Payment not provided or insufficient USDC balance returns 402 Payment Required","Invalid or unsupported symbol returns empty or error response","Upstream exchange API unavailability may cause stale or missing data","Network timeout at the Cloudflare Worker layer","Malformed symbol parameter results in no prices returned"],"whenToPreferThis":"Choose this endpoint when your AI agent needs real-time ADA/USD price data from multiple venues simultaneously without managing individual exchange API keys, and when you want pay-per-call micropayment billing via x402 (USDC on Base) rather than a subscription. Ideal for onchain trading agents, DeFi bots, or portfolio trackers that need Cardano price data infrequently enough that per-call pricing is cheaper than a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:42:21.082Z","isFirstParty":false,"canonicalSlug":"crypto-multi-venue-price-feed-ada-usd-via-x402-2b4d9ef2"}