API2D is a platform designed to offer affordable and efficient AI applications and developer services with integration capabilities for globally recognized APIs such as OpenAI and Tencent Cloud. Unlike traditional subscription-based services, API2D uses a pay-per-token model, ensuring users only pay for what they actually use. It is especially beneficial for chatbot scenarios, delivering a cost-effective solution that can even be cheaper than official OpenAI interfaces for high-frequency tasks. Additionally, API2D supports caching to reduce redundant operations, further driving down costs for repetitive tasks.