A music API on the same key as your images and video.
Songs with vocals, instrumentals, lyrics, extensions and stems, over REST. 19 models from the Suno and Mureka families, billed per track at base model cost plus a flat 20% platform fee, shown before you spend.
- 19 music models
- Suno and Mureka families
- Priced per track
- No plan
- Same key as image and video
Most media APIs stop at image and video.
If your product makes songs, jingles or soundtracks alongside images or video, music is often a second vendor with a second bill and a second set of limits.
- An image and video gateway, plus a separate music vendor
- Two balances, two dashboards, two sets of keys
- Music sold on a monthly plan sized in songs or credits
- Music, image, video and voice on one key and one balance
- Each track priced before you generate it
- Caps per key and per project cover music too
What the music API does
Send a prompt and, if you like, your own lyrics. Get a finished track.
Background music for video and apps, with no vocals.
Generate lyrics on their own, or with timestamps for karaoke-style captions.
Extend a track, replace a section, add vocals or add an instrumental.
Convert a track to WAV or MIDI for a production workflow.
Score a video you generated with the same key and the same balance.
Video models →One request, one track
Send estimate: true first to get the price without generating. Drop it to generate.
curl -X POST https://api.fairstack.ai/v1/music/generate \
-H "Authorization: Bearer $FAIRSTACK_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "mureka-v9",
"prompt": "Warm acoustic folk, finger-picked guitar, hopeful",
"lyrics": "[Verse]\nMorning light on the kitchen floor...",
"estimate": true
}'Music prices, per track
Live catalog prices for the music models builders call most.
Live catalog prices: base model cost plus a flat 20% platform fee. Every call is priced before it runs. All models
From prompt to track
- 01Price it
Call the music endpoint with estimate set to true. You get the dollar price and nothing is charged.
- 02Generate
Send the same request without estimate. Long tracks run async: you get a job id to poll, or a webhook.
- 03Use it
The track lands in your asset library with a download URL. Extend it, add vocals or convert it to WAV.
Where music sits in each option
Billing terms and coverage. Coverage varies by vendor; check each one's current catalog.
| FairStack | A music app on a plan | An image and video gateway | |
|---|---|---|---|
| Music over an API | Yes | Often app-only | Some carry music, some do not |
| Pricing | Per track, prepaid balance, no plan | Monthly plan | Pay as you go |
| Image and video on the same key | Yes | No | Yes |
| Price before you generate | Yes, in dollars | Plan credits per song | List price per model |
Frequently asked questions
Can I call Suno models through an API? +
Yes. FairStack serves Suno-family music models over its REST API, on the same key as image, video and voice. Suno Generate Music is $0.072/track.
How much does a song cost through the FairStack music API? +
It depends on the model. Suno Generate Music is $0.072/track and Mureka V9 (Song) is $0.054/track. Every price is base model cost plus a flat 20% platform fee, shown before you spend, and you can get it from the API before generating.
Can I send my own lyrics? +
Yes. Pass a lyrics field with verse and chorus markers. You can also generate lyrics on their own first.
Is there a subscription? +
No. FairStack has no plans. You add funds to one balance, $1 minimum, and pay per track. Your balance never expires.
Can I use the music in my product? +
Commercial use follows the terms of each model's provider, which are linked from its model page. Check the terms for the model you pick before you ship.
Still have questions? We're here to help.