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Relaystation Audio Waveform & Spectrogram Renderer
x402
Relaystation Audio Waveform & Spectrogram Renderer is a paid API for AI agents from api.relaystation.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Renders an audio file as a waveform or spectrogram PNG image for visual track analysis
Price / call$0.01
Success—
StatusUnknown
How this service works
$0.0005/call. Render audio as a waveform or spectrogram PNG — visualize any track. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny
Output
A PNG image file containing either a waveform (amplitude over time) or spectrogram (frequency over time) visualization of the submitted audio. The image can be used directly in UIs, thumbnails, or analysis workflows.
Example use cases
Podcast episode waveform thumbnail
“Generate a waveform image for my podcast episode at https://cdn.mypodcast.com/ep10.mp3 — I need a PNG I can use as a visual thumbnail on the episode page.”
Music track spectrogram analysis
“Create a spectrogram PNG from this audio track at https://storage.myapp.com/track.wav so I can visually inspect its frequency content.”
Audio player UI waveform display
“I need a waveform visualization image for the audio clip at https://uploads.mysite.com/clip.mp3 to display in my web audio player's progress bar.”
Technical details
Endpoint
POSThttps://api.relaystation.ai/v1/media/waveformWhen to prefer
Choose this endpoint when you need a fast, low-cost server-side audio visualization rendered as a PNG — ideal for pipelines that need waveform or spectrogram images without client-side rendering dependencies. Prefer it over client-side libraries when operating in headless or server environments, or when a consistent visual output format is required at scale.
Side effects
- Unsupported audio format returns an error
- Invalid or unreachable audio URL causes fetch failure
- Audio file too large or too long may time out
- Missing required parameters returns a 400 bad request
- Insufficient x402 payment balance blocks the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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