Instrumental Music APIGenerate Tracks Without Vocals
Generate vocal-free instrumental music from a text prompt. Describe the track, set make_instrumental, pick a model version, poll for the result, and download — with API keys, free trial credits, pricing, and production-ready docs.
What is the Instrumental Music API?
It's the same /sonic/create endpoint with make_instrumental: true. Describe the genre and mood in gpt_description_prompt, pick a model version, and the API returns a finished track with no vocals — ready for backgrounds, games, and video.
- No Vocals, One Flag
Set
make_instrumental: trueon a normal create call — no extra pipeline.- Any Genre or Mood
Lo-fi, cinematic, ambient, game loops — describe it in the prompt and steer with tags.
- Built for Backgrounds
Perfect for video, podcasts, and apps that need music under a voiceover.
API Examples
Generate an instrumental from a description, then poll for the track.
1curl -X POST 'https://api.musicapi.ai/api/v1/sonic/create' \
2--header 'Authorization: Bearer YOUR_API_KEY' \
3--header 'Content-Type: application/json' \
4--data '{
5 "custom_mode": false,
6 "make_instrumental": true,
7 "gpt_description_prompt": "lo-fi hip hop with mellow piano and vinyl crackle",
8 "mv": "sonic-v5"
9}'Need an instrumental from an existing song instead of a prompt? Use the stem separation API to split a track into parts. Recommended polling interval: 15-25 seconds.
Why Build Instrumental Music on MusicAPI?
One-Flag Toggle
make_instrumental on a normal create — nothing else to wire up.
Async + Fast
Returns a task id; tracks finish in 1-3 min.
Same Endpoint
Reuse the create + task flow you already integrated.
Commercial Rights
Use instrumentals in videos, games, and client work.
Instrumental Music API: Pricing, Free Access & API Keys
Developers adding background music usually want three answers: how to test for free, how to get an API key, and how cost scales after the prototype works.
Free trial
Use free credits to test instrumental generation before choosing a paid plan.
Pricing
Credit-based (a standard create is 10 credits). Estimate per-track cost on the pricing page.
API keys
Generate a bearer token in your account, keep it server-side, and call the create and task endpoints.
Ready to Generate Instrumentals?
Add vocal-free music to your app with one extra flag. Start free, then scale with predictable credit pricing.
Frequently Asked Questions
Everything you need to know about generating instrumental music with the API.
What is an instrumental music API?
An instrumental music API generates music with no vocals over REST. With MusicAPI you POST a description to https://api.musicapi.ai/api/v1/sonic/create with make_instrumental set to true, choose a model version, and poll the task endpoint until the vocal-free track is ready.
How do I generate instrumental music with the API?
POST to /api/v1/sonic/create with make_instrumental true. Use custom_mode false plus a gpt_description_prompt to describe the track, add a model version (mv) like sonic-v5, then poll GET /api/v1/sonic/task/{id} until the song is complete.
Can I control the style and genre of the instrumental?
Yes. Describe the genre, mood, instruments and tempo in gpt_description_prompt (for example 'lo-fi hip hop with mellow piano and vinyl crackle'), or use custom_mode true with tags. On supported models you can also tune style_weight and weirdness_constraint.
What is the difference from stem separation?
Instrumental generation creates a brand-new vocal-free track from a text prompt. Stem separation takes an existing song and splits it into parts (such as instrumental and vocals). Use the instrumental API to make new backing music, and the stem separation API to extract an instrumental from a track you already have.
How long does generation take?
Generation is asynchronous: the create call returns a task id immediately and tracks typically finish in about 1-3 minutes. Poll the task endpoint every 15-25 seconds until the status is complete. Polling task status is free.
How is instrumental music pricing handled?
Generation uses credit-based pricing (a standard create costs 10 credits). Test with free trial credits, estimate per-track cost on the pricing page, and upgrade as volume grows. Failed upstream tasks are auto-refunded.
Do instrumental tracks include commercial rights?
Yes — audio generated through the API comes with commercial rights included, so you can use the instrumentals as background music in apps, games, videos, podcasts, and client work.