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CassetteAI

by CassetteAISalt Lake City, UtahNo ratings yet

Real-time generative music and sound effects via a single API

Visit cassetteai.com

Linked from cassetteai.com · checked 30 Oct

Tool type
Audio generation API for music and sound effects
Made for
Developers building games, creator apps, and real-time pipelines
Runs on
Hosted API called from JavaScript, Python, or cURL
The page describes the API as the runtime; on-device deployment is mentioned only as a licensing option requiring contact.
Last checked
30 Oct 2026
2 product sources

What it does

CassetteAI is an audio generation API. You send a text prompt describing a mood, genre, or sound event and receive audio back: music tracks of up to 3 minutes and sound effects of up to 30 seconds, delivered as 44.1 kHz stereo .wav. A text-to-speech model is announced as coming soon and is not yet available.

It is aimed at adding adaptive music and on-demand sound effects to games, video tools, creator apps, and AR/VR experiences. Deterministic seeds make output repeatable, sound effects can be re-rolled per frame, and clips are loop-safe. A browser playground lets you hear prompt results without signing up before writing code.

Access is through hosted models called from JavaScript, Python, or cURL using an API key, with usage billed per output minute for music and per generation for sound effects. Dedicated capacity, volume pricing, and on-device licensing are handled by contacting the team.

What it can do

  • Generate music tracks from text prompts (mood, genre, reference), with durations from 10 to 180 seconds per call
  • Generate sound effects from text descriptions, with durations from 1 to 30 seconds per call
  • Deterministic seeds for repeatable outputs
  • Per-frame re-rolls and loop-safe sound effect outputs
  • Output in 44.1 kHz stereo .wav
  • Browser playground for trying prompts without signup

Before you choose

  • Music is billed at $0.02 per output minute and sound effects at $0.01 per generation; no seat fees or monthly commitment are listed.
  • Text-to-speech is listed as coming soon with pricing to be announced and a waitlist.
  • Dedicated capacity, volume pricing, and on-device licensing require contacting [email protected].

Listed under

Get started

The homepage links to an API key call-to-action; the music and SFX playgrounds are available without signup.

  1. Get an API key from the CassetteAI site.
  2. Call the music or sound effects generator model (e.g., CassetteAI/music-generator or cassetteai/sound-effects-generator) using the page's JavaScript, Python, or cURL examples.
  3. Choose the audio duration and prompt for each call, then download or stream the returned .wav output.
Get an API key

Plans and prices

Prices in USD

Metered per second of audio returned, with no tiers or seats. TTS pricing has not been announced.

Music Generator$0.02 per output minuteMusic: $0.02 per output minute; pay only for seconds of audio returned.
  • +10s – 180s duration per call
  • +44.1 kHz stereo .wav
Sound Effects Generator$0.01 per generationSFX: $0.01 per generation.
  • +1s – 30s duration per call
  • +Flat rate · no seat fees

Source: cassetteai.com, checked 30 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 30 Oct 2026. Each source supports part of the overview; availability and prices can change.

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Where this comes from

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Last checked 30 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.