OpenAI compatible API

OpenAI-compatible API for multiple AI models

modelrouter provides a unified API layer for developers who want OpenAI-compatible access to multiple AI model providers. Use one Base URL, one API key and one billing console.

Compatible with common clients

If your tool or code already supports OpenAI-style API settings, you can usually connect by replacing the Base URL and API key. This works well for chat clients, coding tools and backend services.

Multiple providers behind one gateway

Call GPT, Claude, Gemini, DeepSeek and other supported models without rebuilding your integration for every upstream provider.

Built for teams and high-frequency usage

Manage keys, quotas, model access and usage records from one platform. modelrouter is useful for individual developers, AI products and business teams.

One API key for GPT, Claude, Gemini and DeepSeek

modelrouter is a unified AI API platform. Top up once, create one API key, and call multiple major AI models from OpenAI-compatible clients and backend services.

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