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Music Generation API vs Suno

Choosing a music generation API vs Suno comes down to one question: do you need to generate music from code, or from a browser tab? PixelAPI is a production REST API — POST a text prompt, get an MP3 back. Suno is a consumer web app with no public developer API. $0.028 per track. 300 free credits, no credit card.

$0.028 / track MP3 output 5–120 s duration 300 free credits No credit card MIT-licenced model
Get an API key (free) Quick start See pricing API docs

Music Generation API vs Suno: why developers choose an API

Suno, Udio, and AIVA are excellent creative tools for musicians and content creators working in a browser. They have no public REST API — you cannot call them from code. If you are building a video editor, automating podcast intros, generating in-game soundtracks, or running a batch pipeline, you need an API endpoint. PixelAPI gives you exactly that: a stable, billed-per-call REST endpoint that returns an MP3 you can store, stream, or pipe directly into your product.

Quick start — one API call

Sign up, copy your key from the dashboard, and POST your description. The endpoint returns a generation_id; poll until status=completed, then download the MP3 from output_url.

curl -X POST https://api.pixelapi.dev/v1/audio/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "upbeat lo-fi hip hop, warm piano, 80 BPM, study vibes", "duration": 30}'
# Response: {"generation_id": "uuid", "status": "queued"}

# Poll until completed
curl https://api.pixelapi.dev/v1/audio/UUID \
  -H "Authorization: Bearer YOUR_API_KEY"
# Response: {"status": "completed", "output_url": "https://..."}
pip install pixelapi
---
from pixelapi import PixelAPI

client = PixelAPI(api_key="YOUR_API_KEY")
result = client.audio.generate(
    prompt="upbeat lo-fi hip hop, warm piano, 80 BPM, study vibes",
    duration=30
)
result.save("background_track.mp3")
npm install pixelapi
---
import { PixelAPI } from "pixelapi";

const client = new PixelAPI({ apiKey: process.env.PIXELAPI_KEY });
const result = await client.audio.generate({
  prompt: "upbeat lo-fi hip hop, warm piano, 80 BPM, study vibes",
  duration: 30,
});
await result.save("background_track.mp3");
composer require pixelapi/pixelapi
---
<?php
use PixelAPI\Client;

$client = new Client(getenv("PIXELAPI_KEY"));
$result = $client->audio()->generate([
    "prompt"   => "upbeat lo-fi hip hop, warm piano, 80 BPM, study vibes",
    "duration" => 30,
]);
file_put_contents("background_track.mp3", $result->getBody());
gem install pixelapi
---
require "pixelapi"

client = PixelAPI::Client.new(api_key: ENV["PIXELAPI_KEY"])
result = client.audio.generate(
  prompt: "upbeat lo-fi hip hop, warm piano, 80 BPM, study vibes",
  duration: 30
)
File.binwrite("background_track.mp3", result.body)
go get github.com/pixelapi/pixelapi-go
---
import "github.com/pixelapi/pixelapi-go"

client := pixelapi.New("YOUR_API_KEY")
result, err := client.Audio.Generate(pixelapi.AudioRequest{
    Prompt:   "upbeat lo-fi hip hop, warm piano, 80 BPM, study vibes",
    Duration: 30,
})
if err != nil { panic(err) }
result.Save("background_track.mp3")

Pricing: music generation API vs Suno, Udio, AIVA, Stable Audio

ProviderTypeFree tierPer-track costREST API?
PixelAPI REST API 300 credits (~10 tracks) $0.028 Yes
SunoConsumer web app50 credits/day~$0.032 (Pro plan, per song)No public API
UdioConsumer web appLimited free tier$10–30/month subscriptionNo public API
AIVAConsumer web app3 downloads/month€11–33/month subscriptionNo REST API
Stable Audio——see stability.ai/pricing—

Pricing verified from each rival's public pricing page November 2026. Suno Pro plan $8/month for 2,500 credits (~10 credits per standard song). Udio plan pricing from udio.com. AIVA plan pricing from aiva.ai/pricing. PixelAPI price from canonical billing record updated 2026-11-02.

What you get back

MP3 download link

The output_url field in the completed status response is a direct MP3 link. Download it, store it in S3, serve it from your CDN, or stream it directly — no further processing required.

Stereo audio

Tracks are generated in stereo, ready for video editors, podcast tools, and game engine audio pipelines without conversion.

Duration control (5–120 s)

Pass duration in seconds (5–120). Short stings for notifications, mid-length for video backgrounds, up to two-minute loops for game scenes. Values below 10 are automatically raised to 10 seconds.

MIT-licenced output

Generated tracks are yours to use commercially — YouTube, Spotify, ads, apps — without attribution. The underlying model (ACE-Step 1.5) ships under the MIT licence.

Request parameters

ParameterTypeRequiredNotes
promptstringYesText description of the music. 3–500 characters. Describe genre, mood, instruments, BPM, and energy level for best results.
durationintegerNo (default 30)Track length in seconds. Range 5–120. Values below 10 are raised to 10 automatically.

The model field is accepted for forward-compatibility but is ignored — the endpoint always uses the latest available model.

Common workflows

The music generation API fits into these production pipelines. Each links to a setup guide with code examples:

Social media creators

Auto-generate unique backing tracks for Reels, Shorts, and TikTok videos at publish time.

Marketing agencies

Programmatic ad audio — unique tracks per campaign without stock-music licensing.

E-commerce

Product video and promo reel soundtracks generated on-demand at catalogue scale.

Publishers & media

Podcast intro music, audiobook chapter stingers, and editorial video beds.

Photography studios

Background music for client slideshow and gallery presentation exports.

Apps & on-demand

In-app background audio that shifts with context — lobby, loading, win screen.

Integrations & SDKs

Shopify

Auto-attach background music to product video on upload via webhook.

Zapier

No-code: trigger music generation from any Zapier-connected event.

Make.com

Drag-and-drop music generation inside Make scenarios.

Webflow

CMS-triggered background music for video CMS items and landing pages.

WooCommerce

Auto-generate product demo audio with the WC product API.

Next.js

Server-side route handler pattern for generating tracks in a Next.js app.

Comparison vs alternatives

vs Suno

Suno is a consumer app with no REST API. PixelAPI is a billed-per-call developer endpoint. Choose PixelAPI for any automated or programmatic workflow.

vs Udio

Udio has no public REST API (confirmed Oct 2025). PixelAPI delivers the same quality of AI-generated music as a stable REST endpoint with SLA and invoicing.

vs Stable Audio

Stable Audio is available through Stability AI's API platform. PixelAPI offers simpler integration, predictable per-track pricing, and free-trial credits with no card.

vs AIVA

AIVA is a subscription web editor for composers with no REST API. PixelAPI is the developer-first choice for automated music generation at any scale.

Rate limits & error handling

20 requests/minute on the free trial, 60 on Starter, 120 on Pro, and 300 on Scale — plus 3/10/20/50 concurrent jobs respectively. Exceeding the rate limit returns HTTP 429 with a Retry-After header. Recommended: exponential backoff starting at 2 s, doubling up to 30 s. The Python and Node SDKs handle this automatically.

# Python SDK auto-retries on 429 with backoff
from pixelapi import PixelAPI
client = PixelAPI(api_key="...", max_retries=4)
result = client.audio.generate(
    prompt="cinematic orchestral, tension build, no drums",
    duration=60,
)  # auto-retries 429 with exponential backoff

Failed generations are auto-detected and credits are automatically refunded — you are never charged for a broken or empty result. The status field transitions to failed and the error_message field describes the cause.

Frequently asked questions

What is the difference between a music generation API and Suno?

PixelAPI is a REST API — POST a text prompt and receive an MP3 download link in your application code. Suno is a consumer web application with no public REST API for developers. If you need to generate music from code — in a pipeline, app, or automated workflow — you need an API like PixelAPI. Suno is for browser-based creative use.

How do I generate background music via API?

POST a JSON body with prompt (text description) and optional duration (seconds) to https://api.pixelapi.dev/v1/audio/generate. The response includes a generation_id. Poll GET /v1/audio/{id} until status=completed, then download the MP3 from output_url. See the Quick Start section above for working code in 6 languages.

What does the music generation API cost?

$0.028 per track (28 credits at $0.001/credit on the Starter plan). New accounts get 300 free credits — approximately 10 full generations — with no credit card required. That is enough to test with real content before paying anything.

Does Suno have a REST API for developers?

No. As of November 2026, Suno does not publish a public REST API, developer documentation, or per-call pricing. It is a subscription-based consumer web application. Programmatic music generation requires a dedicated API.

What audio format does the music generation API return?

The API returns an MP3 file accessible via the output_url field in the completed status response. The audio is stereo and ready for direct use in video editors, podcast platforms, game engines, and streaming pipelines without any conversion step.

How long can generated tracks be?

Set duration anywhere from 5 to 120 seconds per generation call. For longer productions stitch multiple API calls together in your pipeline. The minimum is effectively 10 seconds — values below 10 are automatically raised to 10 by the endpoint before processing.

Is there a Python SDK for the music generation API?

Yes — pip install pixelapi. Official SDKs are also available for Node.js (npm install pixelapi), PHP (Composer), Ruby (Gem), and Go (go get). All SDKs handle authentication, generation status polling, retry-on-429, and binary file return automatically.

What rate limits apply?

20 requests/minute on the free trial, 60 on Starter, 120 on Pro, and 300 on Scale — with 3/10/20/50 concurrent jobs respectively (see parallel-processing docs). Higher limits for batch pipelines — email support@pixelapi.dev with your expected volume.

Can I use the generated music commercially?

Yes. Generated tracks are yours to use commercially — YouTube, Spotify, ads, apps, games — without attribution. The underlying audio model (ACE-Step 1.5) is MIT-licenced, and PixelAPI does not place any additional licensing restrictions on output.

What happens if a generation fails?

Failed jobs are automatically detected by an output quality-check layer. Credits are auto-refunded — you never pay for a broken or missing result. The status endpoint returns status=failed with an error_message, and the refund is applied atomically before your polling loop sees the final state.

Start free — 300 credits, no card Read full API docs Compare all plans