{"uid":"cap_3MxfEk8cGLjkTZHL87rCE","slug":"x402engine-app-5506f515","name":"x402engine Crypto Price API","description":"Real-time cryptocurrency prices for any coin in any fiat currency","url":"https://x402engine.app/api/crypto/price","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":["ids"],"properties":{"ids":{"type":"string","example":"bitcoin,ethereum","description":"Comma-separated coin IDs (e.g. bitcoin,ethereum)"},"currencies":{"type":"string","default":"usd","example":"usd,eur","description":"Comma-separated fiat currencies"},"include_24h_change":{"type":"boolean","default":true,"description":"Include 24h price change"},"include_market_cap":{"type":"boolean","default":false,"description":"Include market cap"}},"additionalProperties":false}},"additionalProperties":false}}},"responseSchema":null,"example":{"request":{"ids":"bitcoin,ethereum","vs_currencies":"usd,eur"},"response":{"bitcoin":{"usd":63342,"usd_24h_change":1.8833584703432864},"ethereum":{"usd":1664.11,"usd_24h_change":1.244322316265071}}},"exampleRequest":{"ids":"bitcoin,ethereum","vs_currencies":"usd,eur"},"tags":["x402"],"displayCostAmount":"0.001000","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.001000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_U9hQT7ovurVCQAR-PX1gO","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the real-time price of any cryptocurrency in any specified fiat currency","exampleAgentPrompt":"What is the current price of Ethereum in USD? Also grab the live price of Solana in EUR while you're at it.","exampleUseCases":[{"title":"Portfolio valuation across multiple currencies","prompt":"I need to check my crypto holdings right now—give me Bitcoin in USD, Ethereum in EUR, and Cardano in GBP so I can see my total portfolio value across my accounts."},{"title":"International remittance cost calculation","prompt":"My friend wants to send me Ripple tokens but I need to know what XRP is worth in Indian rupees before I accept. Can you grab that price for me?"},{"title":"Real-time trading decision support","prompt":"I'm thinking about rebalancing my investments today. Pull the current prices for Polygon in USD, Chainlink in CAD, and Polygon in JPY so I can compare the rates and figure out my best move."}],"resultDescription":"Returns the current real-time price of the requested cryptocurrency denominated in the specified fiat currency, including the coin identifier and exchange rate value.","failureModes":["Unsupported or unrecognized cryptocurrency symbol returns an error","Unsupported fiat currency code returns an error","Network or upstream data feed issues may cause temporary unavailability","Missing required query parameters returns a 400 bad request","Rate limiting or payment failure returns a 402 payment required"],"whenToPreferThis":"Use this endpoint when an AI agent needs real-time spot prices for any cryptocurrency in any fiat denomination, especially in automated workflows requiring live market data. Prefer this over cached or delayed price sources when freshness matters. Well-suited for agents handling financial calculations, portfolio tracking, or conversion queries across a broad range of coins and currencies.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:54:37.209Z","isFirstParty":false}