{"uid":"cap_ceQzTTIi8ox1hlKojcYce","slug":"polyform-crypto-price-api-9799dbbd","name":"Polyform Crypto Price API","description":"Pay-per-call data endpoints for AI agents. USDC on Base via x402. No account, no API key — one micropayment per call.","url":"https://api.polyform.org/v1/crypto/price?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},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"count":1,"prices":{"bitcoin":{"asOf":"2026-09-28T21:00:00.000Z","symbol":"BTC","priceUSD":63000,"confidence":0.99}},"source":"DefiLlama"}},"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_hFiiCeTf11Q5Zqonk8Psl","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 the current USD price of one or more cryptocurrencies, sourced from DefiLlama, via a single micropayment per call.","exampleAgentPrompt":"What's the current price of Bitcoin in USD? Use Polyform's pay-per-call crypto price endpoint — no API key needed, just pay the micropayment.","exampleUseCases":[{"title":"Live BTC price for trading bot","prompt":"What's the current price of Bitcoin in USD right now? I need the latest value with a confidence score for my automated trading logic."},{"title":"Portfolio valuation snapshot","prompt":"Can you fetch today's USD prices for Bitcoin and Ethereum so I can calculate the current value of my crypto portfolio?"},{"title":"Crypto price alert check","prompt":"What is the current USD price of Bitcoin as of right now? I want to check if it's crossed $65,000 so I can decide whether to sell."}],"resultDescription":"Returns a JSON object containing a prices map keyed by asset name (e.g. 'bitcoin'), each entry including the USD price, asset symbol, ISO timestamp of the observation, and a confidence score between 0 and 1. Also returns total count and the data source (DefiLlama).","failureModes":["Missing or invalid query parameter returns an error response","Unsupported cryptocurrency symbol may return empty prices map or error","Payment failure (insufficient USDC balance or x402 protocol error) results in 402 response with no data","DefiLlama upstream outage may result in stale or unavailable price data","Rate or network timeout if the upstream data provider is slow"],"whenToPreferThis":"Choose this endpoint when you need a quick, no-account, no-API-key cryptocurrency price lookup and are willing to pay a small USDC micropayment per call via the x402 protocol. Ideal for AI agents operating autonomously that need real-time or near-real-time crypto prices sourced from DeFi data aggregators like DefiLlama, without managing API credentials.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T00:46:10.918Z","isFirstParty":false,"canonicalSlug":"polyform-crypto-price-api-9799dbbd"}