Available AI Models

Access multiple leading AI models through a single unified API

Claude Opus 4.1

Anthropic's most powerful model with exceptional reasoning and analysis capabilities.

Model ID: claude-opus-4.1
Context Length: 200K tokens
Best For: Complex reasoning & analysis

Claude Sonnet 4

High-performance model with excellent balance of speed and intelligence.

Model ID: claude-sonnet-4
Context Length: 200K tokens
Best For: Most tasks

Claude Sonnet 4.5

Enhanced version with improved performance for demanding workloads.

Model ID: claude-sonnet-4.5
Context Length: 200K tokens
Best For: Production applications

GPT-5 (BETA)

OpenAI's latest generation model with advanced capabilities.

Model ID: gpt-5
Context Length: 128K tokens
Best For: General purpose tasks

Gemini 2.5 Pro (BETA)

Google's multimodal AI model with strong reasoning capabilities.

Model ID: gemini-2.5-pro
Context Length: 1M tokens
Best For: Long context tasks

Grok 4 Fast (BETA)

X.AI's latest multimodal model with SOTA cost-efficiency and real-time responses.

Model ID: grok-4-fast
Context Length: 2M tokens
Best For: Real-time & long context

Quick Start Guide

Get up and running with our Multi-Model API in minutes

1

Get Your API Key

Start with our free 24-hour trial or choose a plan that fits your needs.

2

Choose Your Model

Select from Claude, GPT, Gemini, or Grok models based on your needs.

3

Integrate with Your Tools

Works with Cursor, VS Code, and any application that supports OpenAI API.

API Reference

Complete API documentation with examples

Base URL

URL
https://agabeyogluai.com

Authentication

Important: Use the x-api-key header for authentication. The Authorization: Bearer header is NOT supported.

Correct Authentication Method

HTTP
x-api-key: YOUR_API_KEY

Example with trial key:

HTTP
x-api-key: fr-0e4d5327abcf9012d3456789abcdef12

Chat Completions

Send messages to any AI model using the OpenAI-compatible format:

JavaScript Example

JavaScript
const response = await fetch('https://agabeyogluai.com/v1/chat/completions', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'x-api-key': 'YOUR_API_KEY' // Use x-api-key header
    },
    body: JSON.stringify({
        model: 'claude-opus-4.1', // or gpt-5, gemini-2.5-pro, grok-4-fast
        messages: [
            {
                role: 'user',
                content: 'Hello, AI!'
            }
        ],
        max_tokens: 1000,
        stream: false
    })
});
const data = await response.json();
// Process the response
console.log('Response:', data);
Çıkış (Response):
JSON
{
  "id": "chatcmpl-abc123",
  "object": "chat.completion",
  "created": 1699896916,
  "model": "claude-opus-4.1",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Merhaba! Size nasıl yardımcı olabilirim?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 12,
    "completion_tokens": 24,
    "total_tokens": 36
  }
}

Python Example

Python
import requests
response = requests.post(
    'https://agabeyogluai.com/v1/chat/completions',
    headers={
        'Content-Type': 'application/json',
        'x-api-key': 'YOUR_API_KEY' # Use x-api-key header
    },
    json={
        'model': 'claude-sonnet-4.5', # or gpt-5, gemini-2.5-pro
        'messages': [
            {
                'role': 'user',
                'content': 'Hello, AI!'
            }
        ],
        'max_tokens': 1000,
        'stream': False
    }
)
data = response.json()
print(data['choices'][0]['message']['content'])
Çıkış (Response):
Terminal Output
Merhaba! Size nasıl yardımcı olabilirim?

cURL Example

Bash
curl -X POST https://agabeyogluai.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{
    "model": "claude-sonnet-4",
    "messages": [
      {
        "role": "user",
        "content": "Hello, Claude!"
      }
    ],
    "max_tokens": 1000,
    "stream": false
  }'

Testing with Trial Key

Bash
curl -X POST https://agabeyogluai.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "x-api-key: fr-0e4d5327abcf9012d3456789abcdef12" \
  -d '{
    "model": "claude-sonnet-4.5",
    "messages": [
      {
        "role": "user",
        "content": "Hello, Claude!"
      }
    ],
    "max_tokens": 1000,
    "stream": false
  }'
Çıkış (Response):
JSON
{
  "choices": [
    {
      "message": {
        "role": "assistant",
        "content": "Merhaba! Claude burada. Size nasıl yardımcı olabilirim?"
      }
    }
  ],
  "usage": {
    "total_tokens": 42
  }
}

Popular Integrations

Setup guides for popular development tools

Cursor

Popular

AI-powered code editor with multi-model support

1. Open Cursor Settings (Cmd/Ctrl + ,)
2. Go to "Extensions" → "Cursor"
3. Set API Base URL: https://agabeyogluai.com
4. Enter your API key
5. Select your preferred AI model (Claude, GPT, Gemini, or Grok)

Visual Studio Code

Recommended

World's most popular code editor with AI extensions

1. Install a Claude, GPT, Gemini, Grok extension
2. Configure the base URL to point to our API
3. Add your API key in extension settings

Cline (VS Code Extension)

Featured

Powerful AI coding assistant with multi-model support

1. Install Cline extension from VS Code marketplace
2. Open Command Palette (Cmd/Ctrl + Shift + P) and run Cline: Open
3. Configure in Cline settings:
Provider: Select "Anthropic" Anthropic
Base URL: https://agabeyogluai.com
API Key: Enter your Ağabeyoğlu AI Gateway API key Enter your Ağabeyoğlu AI Gateway API key
Model: Choose from claude-opus-4.1, gpt-5, gemini-2.5-pro, or grok-4-fast Choose from claude-opus-4.1, gpt-5, gemini-2.5-pro, or grok-4-fast
JSON
{
  "provider": "anthropic",
  "baseUrl": "https://agabeyogluai.com",
  "apiKey": "YOUR_AGA_GATEWAY_API_KEY",
  "model": "claude-opus-4.1" // or gpt-5, gemini-2.5-pro, grok-4-fast
}

Custom Applications

Flexible

Use with any OpenAI-compatible application

Our API is fully compatible with OpenAI's client libraries. Simply change the base URL:

JavaScript
// Using OpenAI SDK with our API
const openai = new OpenAI({
    apiKey: 'YOUR_API_KEY',
    baseURL: 'https://agabeyogluai.com/v1'
});