# 12tr.ee - Unified AI API Gateway

> 12tr.ee is a unified, production-grade AI API gateway providing access to 80+ state-of-the-art AI models from OpenAI, Anthropic (Claude), Google (Gemini), DeepSeek, Moonshot (Kimi), and Perplexity through a single OpenAI-compatible API endpoint.

## Key Capabilities

- **Single Endpoint**: Access 80+ AI models using one API key and base URL `https://12tr.ee/api/v1`.
- **OpenAI Compatible**: Fully compatible with official OpenAI SDKs in Python, Node.js, Go, Java, and HTTP/cURL.
- **Pay-Per-Token Billing**: Transparent pay-as-you-go pricing with no subscriptions; top-up wallet starting from $1.
- **Multimodal Support**: Text, vision, image generation (DALL-E 3, Gemini Image), video generation (Sora, Veo 3.1), audio/speech (TTS), and embeddings.
- **Real-time Streaming**: Full support for Server-Sent Events (SSE) streaming (`stream: true`).
- **Function Calling & Tool Use**: Native support for tool calls and structured outputs.

## Endpoint & Authentication

- **Base URL**: `https://12tr.ee/api/v1`
- **Chat Endpoint**: `POST https://12tr.ee/api/v1/chat/completions`
- **Embeddings Endpoint**: `POST https://12tr.ee/api/v1/embeddings`
- **Image Generation Endpoint**: `POST https://12tr.ee/api/v1/images/generations`
- **Authentication**: `Authorization: Bearer <YOUR_12TREE_API_KEY>` (keys start with `tr_`)

## Quickstart Code Example (Python)

```python
from openai import OpenAI

client = OpenAI(
    api_key="tr_your_api_key_here",
    base_url="https://12tr.ee/api/v1"
)

response = client.chat.completions.create(
    model="gpt-5.5",
    messages=[{"role": "user", "content": "Explain quantum computing in 2 sentences."}]
)

print(response.choices[0].message.content)
```

## Supported Provider & Model Categories

- **OpenAI**: `gpt-5.5`, `gpt-5`, `gpt-4.1`, `gpt-4o`, `gpt-4o-mini`, `o3`, `o1`
- **Anthropic Claude**: `claude-sonnet-5`, `claude-opus-4`, `claude-3-5-sonnet-20241022`, `claude-3-5-haiku`
- **Google Gemini**: `gemini-3.5-flash`, `gemini-2.5-pro`, `gemini-2.5-flash`, `gemini-2.5-flash-lite`
- **DeepSeek**: `deepseek-v3`, `deepseek-r1`, `deepseek-coder`
- **Moonshot AI**: `kimi-k2.7`, `kimi-k2.6`, `kimi-k2.5`, `moonshot-v1-8k`
- **Perplexity**: `sonar`, `sonar-pro`, `sonar-reasoning`

## Primary Links & Resources

- [Home Page](https://12tr.ee/): Platform overview & model browser
- [Models Directory](https://12tr.ee/models): Full directory of 80+ models with context windows and pricing
- [Pricing Table](https://12tr.ee/pricing): Per-token cost breakdown across all providers
- [Documentation](https://12tr.ee/docs): Complete API reference, SDK quickstarts, and code samples
- [API Key Management](https://12tr.ee/api-keys): Generate and manage security keys
- [Wallet & Billing](https://12tr.ee/wallet): Balance, top-ups, and transaction logs
- [Usage Analytics](https://12tr.ee/usage): Real-time token consumption trends and charts