AI music and sound effects API

Describe a song and get two versions back, or supply your own lyrics, title and style. A separate endpoint creates sound effects from a text description, from half a second to 30 seconds, including seamless loops.

Who it is for

Video and game creators who need background music and effects
Apps that generate soundtracks
Podcasters who need intros and stingers

How it works

Describe the music (simple mode) or send lyrics and tags (custom mode).
Each music request returns two versions in output.clips.
Sound effects take a prompt and an optional duration_seconds and loop flag.

Endpoints

Method	Path	What it does
`POST`	`/v1/audio/music`	Songs and instrumentals
`POST`	`/v1/audio/sound-effects`	Sound effects

Models

Pass one of these as model (or voice_id for voices). The full, current list with prices is at /v1/models.

ai33/suno
ai33/eleven_text_to_sound_v2

Example

curl https://omni-api.rcinc.app/v1/audio/music \
  -H "Authorization: Bearer $OMNI_KEY" -H "content-type: application/json" \
  -d '{"prompt":"Lo-fi beat for a late-night coding stream","instrumental":true}'

Pricing

A song typically costs under one cent on Omni against about $0.02 a song on Suno's Pro plan; a five-second sound effect costs under a tenth of a cent against about $0.01 at ElevenLabs. See the pricing page for the full comparison.

Limits

Prompts are limited to 500 characters (music) and 450 characters (sound effects).
Only generate music you are allowed to use commercially under the providers' terms.