{"uid":"cap_34zQQYzdzTFw9RIg_TYbf","slug":"quantaflow-x402-gateway-assemblyai-proxy-2c16d3da","name":"QuantaFlow x402 Gateway — AssemblyAI Proxy","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/assemblyai?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_Srb1OYQkVEbEmS8kjdksq","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":"Proxies requests to AssemblyAI's speech-to-text and audio intelligence API via the x402 micropayment protocol, charging $0.01 USDC per call.","exampleAgentPrompt":"Transcribe this audio file for me — the URL is https://example.com/meeting.mp3 — using the AssemblyAI proxy and pay the $0.01 USDC fee per call.","exampleUseCases":[{"title":"Transcribe meeting recording on demand","prompt":"I have a meeting recording at https://storage.example.com/standup.mp3 — can you transcribe it using the AssemblyAI gateway and pay the micropayment fee?"},{"title":"Speaker-diarized podcast transcription","prompt":"Run speaker diarization on this podcast audio at https://feeds.example.com/episode42.wav through the AssemblyAI proxy so I can see who said what."},{"title":"Batch sentiment analysis on voice calls","prompt":"Send this customer call audio at https://calls.example.com/call_001.mp3 to AssemblyAI for sentiment and entity detection — go ahead and pay the $0.01 per call."}],"resultDescription":"The raw upstream AssemblyAI API response body is passed through, including transcription text, confidence scores, speaker labels, sentiment results, or job status depending on the path called. The content type mirrors the upstream response.","failureModes":["Payment failure: insufficient USDC balance causes x402 payment rejection before the request is forwarded","Invalid path: malformed or unsupported AssemblyAI API path returns an upstream 404","Malformed body: invalid JSON in the body field causes upstream API errors","Upstream timeout: AssemblyAI processing delays may cause gateway timeouts for long audio","Rate limiting: AssemblyAI upstream rate limits may be hit if many concurrent calls are made"],"whenToPreferThis":"Choose this endpoint when you need pay-per-use access to AssemblyAI without managing an AssemblyAI subscription or API key, and when your agent supports the x402 micropayment protocol for automatic USDC billing at $0.01 per call. Ideal for low-volume or sporadic transcription needs where a subscription is wasteful.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:50:56.978Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-gateway-assemblyai-proxy-2c16d3da"}