New API is one of the most actively maintained open-source AI gateway platforms, ideal for solo developers and small teams who need centralized management of multiple AI service keys, team quota controls, and cost tracking. Its core strengths are full OpenAI API compatibility, extremely simple deployment, and comprehensive multi-tenant billing. The main trade-off is managing your own server and database, with model support updates depending on community contribution speed. If you need a zero-cost, fully controllable AI API relay solution, New API is the most mature open-source option available today.
