APIPark is an open-source AI gateway and API developer portal supporting 100+ AI models (including OpenAI, Claude, Gemini) with unified API calling. Core features: transform AI models and prompts into REST APIs; provide high-performance API gateway (surpassing Nginx); built-in developer portal for team API sharing; manage API keys and call relationships; real-time API usage monitoring; support multi-tenant management and flexible subscription approval; enable log export. Targets developers and enterprises. Key advantages: simplify AI integration costs (standardized data format), enhance operational efficiency (reduce system call complexity), ensure compliance/security (granular permission management), support multi-model disaster recovery and load balancing. Typical use cases: rapidly build internal API portals, create sentiment analysis/translation APIs, monitor enterprise API calls, manage multi-tenant API subscriptions. Free for commercial use under Apache 2.0 license, enterprise features require contact for pricing.