{"uid":"cap_FeSzThB4u0mLXdi7f6-ED","slug":"nlp-biometric-indexer-mcp-audio-prediction-endpoint-06b9ffa9","name":"NLP Biometric Indexer MCP — Audio Prediction Endpoint","description":"The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.","url":"https://api.m2mcent.com/nlp-biometric-indexer-mcp-568/api/execute?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["audio"],"properties":{"audio":{"type":"string"}}},"responseSchema":{"type":"object","required":["prediction"],"properties":{"prediction":{"type":"boolean"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.15","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":"$0.548849/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.548849","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.548849","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_icMLVRa3W5i2F0EVThnla","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.548849","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Accepts an audio input and returns a boolean biometric prediction result","exampleAgentPrompt":"Run this audio sample through the NLP biometric indexer and tell me whether the prediction comes back true or false — here's the base64-encoded audio string.","exampleUseCases":[{"title":"Voice liveness check for authentication","prompt":"I have a base64-encoded audio clip from a user trying to log in — can you run it through the biometric predictor and tell me if it returns true or false so I can decide whether to grant access?"},{"title":"Automated audio biometric screening","prompt":"We're processing a batch of audio recordings from call center interactions — run this audio sample through the biometric indexer and give me the boolean prediction so I can flag it for review."},{"title":"Audio deepfake or spoofing detection","prompt":"I need to know if this audio file is flagged by the biometric model — please send it to the NLP biometric indexer and return whether the prediction is true or false."}],"resultDescription":"Returns a JSON object containing a single boolean field 'prediction', indicating whether the audio input meets the biometric condition modeled by this endpoint (true or false).","failureModes":["Missing 'audio' field in request body returns a validation error","Malformed or non-audio string input may produce unreliable boolean results","Overly large audio payloads may time out or be rejected","Insufficient USDC balance for x402 payment will result in 402 Payment Required error","Network or node availability issues on api.m2mcent.com may cause transient failures"],"whenToPreferThis":"Choose this endpoint when you need a simple true/false biometric classification from audio data and are operating within the x402 micropayment protocol on Base L2. It is suitable when the binary prediction output is sufficient and no detailed confidence score or explanation is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T12:47:09.607Z","isFirstParty":false,"canonicalSlug":"nlp-biometric-indexer-mcp-audio-prediction-endpoint-06b9ffa9"}