# AI Music API FAQ

## What is the AI Music API?

A unified REST API that gives developers access to multiple AI music generation models through a single integration instead of connecting each provider separately.

## How does pricing work?

There is a free tier to get started. Paid plans are credit-based; each generation costs a fixed number of credits depending on the model and duration. See the pricing page for details.

## What audio formats are supported?

Generated audio is delivered in MP3 by default. Some models also support WAV and FLAC; the format can be set in the API request.

## Which models are available?

The docs name Stable Audio and MusicGen among supported models, with new models added over time.

## Is there a rate limit?

Free tier accounts are limited to 10 requests per minute. Paid plans offer higher limits and enterprise plans offer custom limits.

## How long does generation take?

Most tracks generate in 30–120 seconds depending on the model and requested duration. Async polling and webhook endpoints are provided.

## Can generated music be used commercially?

Yes. The site states generated music is licensed for commercial use across projects such as apps, games, videos, and podcasts.

## How do webhooks work?

A webhook URL is registered in the dashboard. When a generation completes or fails, the API sends a POST request with the task result.

Source: https://aimusicapi.org