LLM Aggregation Gateway
One unified API to the world’s top models
Integrate once and access leading global large language models through a single gateway — with transparent token billing, smart routing and real-time monitoring.
The AI Gateway
For Developers
Text, image, and video: route to hundreds of AI models through a centralized interface.
1import OpenAI from 'openai'23const client = new OpenAI({4 baseURL: "https://llm-gateway.codzen.ai",5 apiKey: "<CODZEN_API_KEY>",6})78const response = await client.chat.completions.create({9 model: 'gpt-4.1',10 messages: [11 { role: 'user', content: 'Why is the sky blue?' }12 ],13})One API key, hundreds of models
Unified billing and observability across your entire AI stack, with text, image, and video models.
Built-in failovers, better uptime
Automatic fallbacks during provider outages so your app stays up even when a model goes down.
No markup, just list price
Pay exactly what providers charge with no platform fees.
Generate anything
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Frequently
Asked Questions
Explore the gateway
Browse supported models, pricing and developer documentation.