What is the AI Gateway

One-Line Definition

AI Gateway (TOKENOPEN) is an AI API aggregation proxy platform: it creates a unified entry point between your applications and various AI providers, letting you call dozens of mainstream AI models with a single API key and a single endpoint.

TOKENOPEN is fully compatible with the OpenAI API protocol. Simply replace https://api.openai.com with the platform address — no changes to your business code required.

How It Works

Your App / Tool
      │  One API Key + One Base URL
      ▼
  TOKENOPEN Gateway
  ┌─────────────────────────────────────┐
  │  Routing · Auth · Billing · Rate Limiting · Logs   │
  └─────────────────────────────────────┘
      │          │          │
      ▼          ▼          ▼
   OpenAI    Anthropic   Google / Others
  (GPT-5.4)  (Claude 4.x) (Gemini 3.x)

You don't need to register separate accounts for each provider, manage multiple API keys, or handle different API protocols — the gateway handles all of that for you.

Who Is It For

Individual Developers

No overseas phone number or credit card required. Register and start immediately — new users get free trial credits.

AI App Users

Enter the platform endpoint in tools like Cursor, LobeChat, or Cherry Studio to access all models instantly.

Enterprise / Teams

Use groups and permission management to assign independent API keys to different team members, with centralized cost and usage control.

Next Steps

Read Core Advantages for a detailed comparison with official APIs
Follow the 5-Minute Quick Start to make your first API call
Browse the Model List to see available models