An open-source (MIT) LLM API management & distribution gateway: exposes many providers through a single OpenAI-compatible API, with key management, quotas and load balancing.
One API (one-api) is an open-source LLM API management and redistribution platform by songquanpeng (JustSong), released under the MIT license (2023). It provides access to many LLM providers through a single, unified OpenAI-compatible API.
It supports OpenAI (and Azure OpenAI), Anthropic Claude, Google Gemini/PaLM, DeepSeek, ChatGLM (Zhipu), Baidu Wenxin, Alibaba Qwen, iFlytek Spark, Tencent Hunyuan and more. Key features: load balancing across channels, stream mode, token management (expiry, usage limits), channel management, user/channel grouping (different rates), redemption vouchers and multi-machine deployment.
The project is implemented in Go (backend) with a web UI (React), distributed as a single binary and a Docker image (one-click, self-hosted deployment). It is a popular, open-source "LLM API gateway" (over 36k GitHub stars) for key management and re-distribution of model access.
