SinoGate is an API gateway designed to provide access to several Chinese foundation models through a single, OpenAI compatible interface. The service allows developers to use models such as Qwen, DeepSeek, and Kimi by making standard OpenAI API calls, which reduces the need to learn separate SDKs or authentication methods for each model provider. Billing is handled in United States dollars, making the service accessible to international users who prefer not to manage payments in Chinese currency. The primary function of SinoGate is to simplify the integration of Chinese large language models into existing applications. Developers can sign up for an account, obtain a single API key, and then use that key to route requests to any supported model. The gateway handles the underlying translation between the OpenAI request format and each model’s native API, returning responses in a consistent structure. This approach is intended to lower the technical barrier for global builders who want to experiment with or deploy Chinese models without managing multiple accounts or payment systems. Typical use cases include building multilingual chatbots, content generation tools, and research applications that require access to models trained on Chinese language data. The workflow involves registering on the SinoGate website, selecting a model from the available list, and sending HTTP requests using standard OpenAI client libraries. No special hardware or software is required beyond an internet connection and a valid API key. The service is aimed at developers and organizations that need a straightforward way to evaluate or use Chinese foundation models in production environments.