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

# Quickstart

**deAPI** is a high-performance inference platform built specifically for developers seeking a fast, reliable, and simple way to integrate cutting-edge AI capabilities into their applications. This guide will help you quickly set up your account, obtain your API key, load credits, and begin using our API.

***

### 1. Sign In to Your Account

Create your free account at [deapi.ai](https://app.deapi.ai/register) to get started. All new users receive a **\$5 sign-up bonus** with a **Basic** account — no credit card required.

***

### 2. Obtain Your API Key

deAPI uses token-based authentication. Every request must include your personal API key, provided via an HTTP header:

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

To get your API key:

* Sign up or log in to your account.
* Navigate to Dashboard → Settings → API Keys.
* Click "Create new secret key".
* Your API key will be generated instantly.

***

### 3. Load Credits to Your Account

deAPI operates on a pay-as-you-go model.

| Account Type | Description                                             |
| ------------ | ------------------------------------------------------- |
| **Basic**    | \$5 welcome bonus, conservative rate limits for testing |
| **Premium**  | 300 RPM, unlimited daily requests across all endpoints  |

Your **\$5 bonus** is available immediately upon registration for testing with Basic rate limits.

To upgrade to **Premium** (300 RPM and unlimited daily requests), simply top up your account with any available amount (\$10, \$25, or \$50) via Stripe. Your remaining bonus balance carries over after upgrade.

To add funds, go to your [Dashboard → Billing](https://app.deapi.ai/billing) section.

<Info>
  For detailed rate limits per endpoint, see [Limits & Quotas](/limits-and-quotas).
</Info>

***

### 4. Start Using the API

Once your API key is activated and your account has sufficient credits, you can start making requests to deAPI immediately.

<Tip>
  **Already using the OpenAI SDK?** deAPI provides a drop-in OpenAI-compatible endpoint. Set `base_url` to `https://oai.deapi.ai/v1` and use your deAPI key — no code changes required for image generation, TTS, transcription, embeddings, and video. See [OpenAI Compatibility](/openai-compatibility).
</Tip>

**Available Services (v2):**

* **Image Generation** — `POST /api/v2/images/generations` — Generate images from text prompts using AI diffusion models.
* **Image Edit** — `POST /api/v2/images/edits` — Transform existing images with text prompts.
* **Image OCR** — `POST /api/v2/images/ocr` — Extract text from images.
* **Image Background Removal** — `POST /api/v2/images/background-removals` — Transparent PNG output.
* **Image Upscale** — `POST /api/v2/images/upscales` — AI super-resolution for images.
* **Video Generation** — `POST /api/v2/videos/generations` — Generate videos from text prompts.
* **Video Animation (Image-to-Video)** — `POST /api/v2/videos/animations` — Animate still images.
* **Video Audio Sync** — `POST /api/v2/videos/audio-syncs` — Generate video from audio + prompt.
* **Video Replacement** — `POST /api/v2/videos/replacements` — Swap characters in videos.
* **Video Upscale** — `POST /api/v2/videos/upscales` — AI super-resolution for videos.
* **Text-to-Speech** — `POST /api/v2/audio/speech` — Preset voices, voice cloning, voice design.
* **Text-to-Music** — `POST /api/v2/audio/music` — Tracks with lyrics, tempo, key, style control.
* **Transcription** — `POST /api/v2/audio/transcriptions` — Unified audio + video (YouTube, X, Twitch, Kick, TikTok, X/Twitter Spaces, file uploads).
* **Text-to-Embedding** — `POST /api/v2/embeddings` — Vector embeddings for semantic search and RAG.
* **Prompt Enhancement** — `POST /api/v2/prompts/enhancements` — AI-powered prompt boosters.

***

deAPI is actively evolving — new AI services, models, and features will be added regularly to expand what's possible with our platform. Stay up to date by following our announcements.