{"uid":"cap_eQcJDs0z5sYr6HKBi2fuW","slug":"proofwork-crypto-price-api-016d8605","name":"Proofwork Crypto Price API","description":"Small non-cyber evidence and data APIs payable per request with x402 on Base.","url":"https://proofwork-the402-webhook.phase-voice.workers.dev/v1/crypto-price","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["coins"],"properties":{"coins":{"type":"string","maxLength":1800,"minLength":1},"currency":{"type":"string","pattern":"^[a-zA-Z]{2,8}$"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"coins":[{"id":"bitcoin","price":63000,"query":"BTC","change_24h_percent":-0.2},{"id":"ethereum","price":1880,"query":"ETH","change_24h_percent":0.4}],"report":"crypto_price","currency":"usd","observed_at":"2026-08-16T00:00:00.000Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_W3JiCJTV5qj9Th1qShBoz","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current prices and 24-hour change percentages for one or more cryptocurrencies in a specified fiat currency, payable per request via x402 on Base.","exampleAgentPrompt":"What are the current prices and 24-hour changes for BTC and ETH in USD?","exampleUseCases":[{"title":"Portfolio value snapshot","prompt":"Can you grab the current prices of BTC, ETH, and SOL in USD so I can see how my portfolio is doing today?"},{"title":"Crypto price alert dashboard","prompt":"Fetch the latest prices and 24-hour percent changes for BTC, ETH, BNB, and ADA — I want to see which ones moved the most overnight."},{"title":"Euro-denominated crypto pricing","prompt":"What are the current prices of Bitcoin and Ethereum in EUR, including their 24-hour change percentages?"}],"resultDescription":"A JSON object containing a list of coin entries — each with the queried ticker, resolved coin ID, current price in the requested currency, and 24-hour percent change — along with the fiat currency used, a report type label, and the UTC timestamp when the prices were observed.","failureModes":["Invalid or unrecognized coin ticker returns no result or an error for that coin","Unsupported currency code (outside 2-8 alpha chars) returns a 400 validation error","Empty or missing 'coins' query parameter returns a 400 error","Payment not fulfilled via x402 results in a 402 Payment Required response","coins string exceeding 1800 characters may be rejected","Network or worker downtime returns a 5xx error"],"whenToPreferThis":"Choose this endpoint when you need lightweight, pay-per-use cryptocurrency price lookups with no subscription required, particularly in agentic or automated workflows that already use the x402 micropayment protocol on Base. It is well-suited for fetching prices for multiple coins in a single call and supports non-USD fiat currencies. Prefer alternatives if you need order book depth, historical OHLCV data, or trading execution.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:35:07.953Z","isFirstParty":false}