One Api Pro

This platform is an open source AI API gateway that puts one OpenAI compatible entry point in front of more than thirty model providers, including OpenAI, Claude, Gemini, DeepSeek, Alibaba Tongyi, ByteDance Doubao, Zhipu GLM, Moonshot, Mistral, Meta LLaMA, xAI Grok and Groq. It is a deep rewrite of the original one api project by JustSong, which the vendor says stopped receiving updates in 2024, and it keeps database compatibility so existing installations can migrate by replacing the binary. It is aimed at teams that resell or centrally manage model access. Features include multi level user permissions, per model token authorization, group multipliers, IP allowlists and quotas by channel, user and model. Billing prices prompt, completion and cached tokens separately, charges by token or by request, and supports subscription packages with periodic rate limits and usage caps, with WeChat, Alipay and bank payment integrations. Routing binds several upstream channels to one model with weights and priorities, retries failures automatically, cools down or disables bad channels, and can run as a decentralized multi node cluster. New providers are added by registering a package without changing framework source. The admin console is rebuilt in Vue 3 with Arco Design, and request logs support search and export. The software is free under the MIT license. It runs as a downloaded binary, from source or in Docker, with SQLite by default, MySQL or PostgreSQL as options and Redis for caching. An online demo is available, and the site itself is in Chinese.