{"uid":"cap_Oh50KoggUGqsx65me_NW-","slug":"x402-deployer-x402-deployer-workers-dev-0146054e","name":"Audio Loudness Normalization (EBU R128 / LUFS)","description":"Audio loudness normalizer (EBU R128 LUFS). Podcast / Spotify / YouTube target presets (-23 / -16 / -14). Two-pass dynamic mode. Returns hosted MP3.","url":"https://x402-deployer.x402-deployer.workers.dev/audio-loudnorm","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":["audio_url"],"properties":{"audio_url":{"type":"string","description":"URL of the audio file to normalize. Rejected if longer than 60 minutes."},"true_peak":{"type":"number","description":"Default -1.5. Range -9 to 0."},"target_lufs":{"type":"number","description":"Default -16. Range -30 to -10."}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"audio_url":{"type":"string"},"target_lufs":{"type":"integer"},"duration_seconds":{"type":"integer"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5kEW5n-hb2Qya1NUmt2ri","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Normalizes audio loudness to a configurable LUFS target using the EBU R128 standard","exampleAgentPrompt":"Normalize my podcast episode's loudness to -16 LUFS using EBU R128 — the source audio is at this URL: https://example.com/episode.mp3","exampleUseCases":null,"resultDescription":"Returns a processed audio file or URL with loudness normalized to the requested LUFS target, along with measured loudness statistics such as integrated loudness, loudness range (LRA), and true peak values according to EBU R128.","failureModes":["Unsupported audio format returns error","Audio URL unreachable or invalid returns fetch error","LUFS target out of valid range returns validation error","Audio file too large may time out or exceed limits","Corrupt or malformed audio file returns processing error"],"whenToPreferThis":"Use this endpoint when you need standards-compliant EBU R128 loudness normalization for podcasts, broadcast audio, or streaming platform delivery. Ideal when you need a specific LUFS target (e.g. -14 LUFS for Spotify, -16 LUFS for podcasts, -23 LUFS for broadcast) rather than simple gain adjustment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:46:15.321Z","isFirstParty":false}