> ## Documentation Index
> Fetch the complete documentation index at: https://docs.api.box/llms.txt
> Use this file to discover all available pages before exploring further.

# API.box Documentation

> Complete API.box documentation - Your gateway to affordable and stable AI music API services

# Welcome to API.box Documentation

This documentation provides comprehensive guides and references for integrating [API.box](https://api.box/), a platform offering affordable and stable AI music API services that seamlessly integrate into your projects.

## About API.box

API.box delivers advanced AI music capabilities through easy-to-integrate APIs, including music generation, lyrics creation, audio processing, and video production. Our platform is designed for developers and businesses who need:

* **99.9% Uptime** - Reliable and stable API performance
* **Affordable Pricing** - Transparent, usage-based pricing system
* **20-Second Streaming Output** - Fast delivery with streaming response
* **High Concurrency** - Scalable solutions that grow with your needs
* **24/7 Support** - Professional technical assistance
* **Watermark-Free** - Commercial-ready music generation

## Quick Start Guides

Get started quickly with our comprehensive API quick start guides:

### 🎵 Music Generation APIs

<Card title="Generate Music" icon="music" href="/suno-api/generate-music">
  Create high-quality music from text descriptions using advanced AI models with support for various styles and genres.
</Card>

<Card title="Extend Music" icon="forward" href="/suno-api/extend-music">
  Extend existing music tracks with AI-powered continuation, maintaining musical coherence and style.
</Card>

<Card title="Upload and Cover Audio" icon="upload" href="/suno-api/upload-and-cover-audio">
  Transform existing audio with new styles and arrangements using AI music processing.
</Card>

<Card title="Upload and Extend Audio" icon="plus" href="/suno-api/upload-and-extend-audio">
  Upload your own audio files and extend them with AI-generated content.
</Card>

<Card title="Add Vocals" icon="microphone" href="/suno-api/add-vocals">
  Generate vocal tracks for instrumental music using advanced AI models.
</Card>

<Card title="Add Instrumental" icon="music" href="/suno-api/add-instrumental">
  Create instrumental accompaniment for vocal tracks with AI-powered arrangement.
</Card>

### ✍️ Lyrics Creation APIs

<Card title="Generate Lyrics" icon="pen-to-square" href="/suno-api/generate-lyrics">
  Create AI-powered lyrics for your songs with customizable themes and styles.
</Card>

<Card title="Get Timestamped Lyrics" icon="clock" href="/suno-api/get-timestamped-lyrics">
  Retrieve lyrics with precise timestamps for synchronization with audio tracks.
</Card>

### 🔊 Audio Processing APIs

<Card title="Separate Vocals from Music" icon="waveform-lines" href="/suno-api/separate-vocals-from-music">
  Extract vocals and instrumental tracks separately using advanced AI audio separation.
</Card>

<Card title="Convert to WAV Format" icon="file-audio" href="/suno-api/convert-to-wav-format">
  Convert generated music to high-quality WAV format for professional use.
</Card>

<Card title="Boost Music Style" icon="sparkles" href="/suno-api/boost-music-style">
  Enhance and refine music styles with AI-powered audio processing.
</Card>

### 🎬 Music Video APIs

<Card title="Create Music Video" icon="video" href="/suno-api/create-music-video">
  Generate visual music videos from audio tracks using AI video generation technology.
</Card>

### 🛠️ Utility APIs

<Card title="Get Music Generation Details" icon="magnifying-glass" href="/suno-api/get-music-generation-details">
  Monitor and retrieve detailed information about your music generation tasks.
</Card>

<Card title="Get Remaining Credits" icon="coins" href="/suno-api/get-remaining-credits">
  Check your account credit balance and usage statistics.
</Card>

<Card title="Get Lyrics Generation Details" icon="list-check" href="/suno-api/get-lyrics-generation-details">
  Track the status and details of your lyrics generation requests.
</Card>

<Card title="Get WAV Conversion Details" icon="file-audio" href="/suno-api/get-wav-conversion-details">
  Monitor WAV format conversion tasks and download status.
</Card>

<Card title="Get Vocal Separation Details" icon="waveform-lines" href="/suno-api/get-vocal-separation-details">
  Check the progress of vocal separation tasks and access separated audio files.
</Card>

<Card title="Get Music Video Details" icon="video" href="/suno-api/get-music-video-details">
  Track music video generation progress and retrieve download links.
</Card>

## Documentation Features

* **Interactive Examples** - Test APIs directly in our documentation
* **Code Samples** - Ready-to-use examples in multiple programming languages
* **Comprehensive Guides** - Step-by-step integration instructions
* **API Reference** - Complete parameter documentation and response schemas
* **Best Practices** - Optimization tips and common use cases
* **Callback Documentation** - Webhook integration guides for all endpoints

## Key Features

### 🚀 Latest AI Music Models

We provide APIs for the latest AI music models, including Suno V5, V5\_5, V4.5PLUS, V4.5, V4\_5ALL, and V4, offering high-quality music generation. Supports creation of both vocal and instrumental tracks, music extension, and multi-format downloads.

### 💎 Watermark-Free Commercial Use

All music generated through our API is watermark-free, making it immediately suitable for commercial projects. This removes the need for additional fees, enabling creators and developers to effortlessly integrate high-quality tracks into their workflows.

### ⚡ 20-Second Streaming Output

We ensure rapid delivery with streaming output, enabling developers to integrate AI-generated music seamlessly into their workflows without delays. This feature supports real-time applications and live content creation.

### 🏗️ High-Concurrency Architecture

Our API is built to handle multiple simultaneous requests, ensuring reliable performance even under heavy traffic. This makes it ideal for large-scale applications and high-demand platforms.

### 💰 Transparent and Affordable Pricing

We offer cost-effective and transparent pricing plans, making it accessible to creators and enterprises. Our transparent, usage-based model ensures predictable costs as shown on [API.box](https://api.box/).

### 🔧 Comprehensive Developer Support

We streamline integration with detailed, developer-friendly API documentation, ensuring a hassle-free implementation process. Supported by an experienced technical team.

## Getting Started

1. **Sign Up** - Create your free account at [API.box](https://api.box/)
2. **Get API Key** - Obtain your authentication credentials from the API key management page
3. **Choose Your API** - Select from our comprehensive API collection
4. **Follow Quick Start** - Use our [Quick Start Guide](/suno-api/quickstart) for rapid integration
5. **Test & Deploy** - Verify your integration and go live

## AI Model Versions

Choose the right model for your needs:

### V4\_5ALL - Extended Capabilities

Supports longer lyrics (5000 characters) and style descriptions (1000 characters). Perfect for projects requiring more detailed creative control.

### V4 - Improved Vocals

Enhanced vocal quality with refined audio processing, up to 4 minutes duration. Ideal when vocal clarity is most important.

### V4\_5 - Better Song Structure

Improved song organization with clear verse/chorus patterns, max 1 minute duration. Ideal for short, well-structured compositions.

### V4\_5PLUS - Richer Tones

Most advanced model with enhanced tonal variety and new creative approaches, up to 8 minutes duration. Best for highest quality and longest tracks.

### V5 - Latest Model

Cutting-edge model with enhanced quality and capabilities. Our newest offering for premium music generation.

### V5\_5 - Custom voice character

Unleash Your Voice: Custom Models Tailored to Your Unique Taste. Use **`V5_5`** anywhere the API accepts **`V5`** for the same request parameters and character limits (see OpenAPI for each endpoint).

## Use Cases

### 🎮 Game Developers

Generate dynamic background music, sound effects, and adaptive audio for gaming experiences with our music generation and extension APIs.

### 🎬 Content Creators

Create royalty-free music for videos, podcasts, and social media content with unlimited commercial use through our watermark-free output.

### 🏢 Businesses

Integrate AI music generation into apps, websites, and services for enhanced user experiences using our high-concurrency APIs.

### 🎭 Music Producers

Prototype songs, generate ideas, and create full compositions with professional-quality output. Use vocal separation for remixing and audio processing.

### 🎤 Karaoke & Entertainment

Leverage timestamped lyrics and vocal separation features for karaoke applications and interactive music experiences.

## Support & Community

* **24/7 Support** - Contact our technical team anytime
* **Email Support** - [support@api.box](mailto:support@api.box)
* **Documentation Updates** - Regular improvements and new features
* **API Status** - Monitor real-time service status
* **Developer Resources** - Comprehensive guides and best practices

## Callback Integration

All major endpoints support webhook callbacks for real-time notifications:

* [Music Generation Callbacks](/suno-api/generate-music-callbacks)
* [Lyrics Generation Callbacks](/suno-api/generate-lyrics-callbacks)
* [Music Extension Callbacks](/suno-api/extend-music-callbacks)
* [Audio Processing Callbacks](/suno-api/separate-vocals-from-music-callbacks)
* [Music Video Callbacks](/suno-api/create-music-video-callbacks)
* [WAV Conversion Callbacks](/suno-api/convert-to-wav-format-callbacks)
* [Upload & Cover Callbacks](/suno-api/upload-and-cover-audio-callbacks)
* [Upload & Extend Callbacks](/suno-api/upload-and-extend-audio-callbacks)
* [Add Vocals Callbacks](/suno-api/add-vocals-callbacks)
* [Add Instrumental Callbacks](/suno-api/add-instrumental-callbacks)

## API Base URL

All API requests should be made to:

```
https://apibox.erweima.ai
```

## Authentication

All API requests require authentication using Bearer tokens:

```http theme={null}
Authorization: Bearer YOUR_API_KEY
```

Get your API key from the [API Key Management Page](https://api.box/api-key).

***

Ready to get started? Choose an API above and follow the quick start guide to begin integrating powerful AI music capabilities into your projects. Visit [API.box](https://api.box/) to create your account and start generating amazing music today!