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ManyLives Audiobook Audio Quality Checker
x402
ManyLives Audiobook Audio Quality Checker is a paid API for AI agents from api.manylives.me, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).
Validates audio files (WAV or MP3) against audiobook technical standards, checking loudness (RMS) and peak levels and returning pass/fail results with specific fixes.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call tools for people building AI agents: live web search and page contents, point-in-time crypto market data and news for backtests (no lookahead), verifiable track records of 1,000 crypto strategies locked on the Base network, company profiles, quick AI and batch prices. Ask us to turn a public website into a JSON endpoint. Pay per call, no account, free trial.
Output
A JSON object with a top-level pass boolean, the detected audio format, a list of individual checks (each with its name, spec, measured value, and ok status), and an array of human-readable fix suggestions. Also includes a note about store policies on AI/TTS narration.
Example use cases
Pre-submission audiobook chapter audit
“Before I upload this chapter to ACX, can you check if the WAV file at https://mycdn.example.com/chapter1.wav meets audiobook loudness and peak requirements and list anything I need to fix?”
Diagnosing a rejected audio file
“My audiobook file got rejected by the distributor. Can you analyze this MP3 at https://myfiles.example.com/ch3.mp3 and tell me specifically what's wrong with the loudness or peaks?”
Bulk QA before narrator delivery
“I just finished recording chapter 7 — here's the audio link: https://recordings.example.com/ch7.wav. Does it pass the standard -23 to -18 dB RMS and below -3 dB peak specs for audiobooks?”
Technical details
Endpoint
POSThttps://api.manylives.me/paid/audio/audiobook-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need automated, programmatic validation of audio files against audiobook technical standards (specifically RMS loudness and peak dB) with actionable fix instructions. Prefer this over manual DAW inspection when building an AI agent pipeline that must gate audiobook submissions, or when you need a lightweight, pay-per-call check without setting up an account or self-hosted audio analysis stack.
Side effects
- Audio URL is not publicly accessible or returns a non-200 response
- File exceeds the ~1 MB base64 limit when sent inline (use URL instead)
- Unsupported audio format other than WAV or MP3
- Network timeout fetching the remote audio file
- Corrupted or malformed audio data causing analysis failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | public https:// link to the WAV or MP3 chapter (or audio_base64) |
| audio_base64 | string | the audio, base64, for short clips only (requests are limited to about 1 MB; send a url for chapters) |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Store rules on AI or text-to-speech narration vary; check them before submitting.",
"pass": false,
"fixes": [
"Lower the peaks below -3 dB with a limiter"
],
"checks": [
{
"ok": true,
"spec": "-23 to -18 dB",
"check": "loudness (RMS)",
"value": "-20.4 dB"
},
{
"ok": false,
"spec": "below -3 dB",
"check": "peaks",
"value": "-1.2 dB"
}
],
"format": "wav"
}
}Tags
x402
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