{"uid":"cap_bZO70_W2EuXgioXgU2sKe","slug":"quantaflow-rapid-crypto-screener-api-3f1951a7","name":"QuantaFlow Rapid Crypto Screener API","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/rapid-crypto-screener-api?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"body":{"type":"string","description":"Optional JSON body forwarded to POST requests."},"path":{"type":"string","description":"Path below the selected upstream origin."},"query":{"type":"object"},"method":{"enum":["GET","POST"],"type":"string"}}},"responseSchema":{"description":"The upstream response body and content type are passed through after successful payment."},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-xjmjTuAkxbgKuHpRSOjc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Screens and retrieves cryptocurrency market data via a pay-per-call x402 gateway proxying the Rapid Crypto Screener API","exampleAgentPrompt":"Screen cryptocurrencies and show me the top 10 coins by 24-hour volume change — I want price, market cap, and percent change for each.","exampleUseCases":[{"title":"Daily crypto momentum scan","prompt":"Give me a list of the top 20 cryptocurrencies sorted by 24-hour price gain percentage, including their current price and market cap."},{"title":"DeFi token discovery for portfolio","prompt":"Screen all DeFi tokens with a market cap over $50 million and a 24-hour volume spike of more than 30% — I'm building a watchlist."},{"title":"Altcoin breakout alert research","prompt":"Pull the latest screener data for altcoins in the $10M–$500M market cap range that have moved more than 10% today so I can evaluate breakout candidates."}],"resultDescription":"Returns the upstream Rapid Crypto Screener API response body (JSON) containing cryptocurrency screening results such as token names, prices, market caps, volume data, percentage changes, and other market indicators, passed through after successful $0.01 USDC x402 payment.","failureModes":["Payment failure (insufficient USDC balance or x402 protocol error) — returns 402 Payment Required","Invalid path parameter causing upstream 404 from the crypto screener API","Malformed query parameters resulting in upstream API validation error","Upstream Rapid Crypto Screener API rate limit or downtime returning 503 or 500","Missing or incorrect method field causing request routing failure"],"whenToPreferThis":"Choose this endpoint when you need programmatic, pay-per-call access to cryptocurrency screening data without a monthly subscription — ideal for agents making infrequent or burst queries where per-request micropayment via x402/USDC is preferred over API key subscriptions. Best for web3-native agents that already manage USDC wallets.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-14T00:34:35.110Z","isFirstParty":false,"canonicalSlug":"quantaflow-rapid-crypto-screener-api-3f1951a7"}