APIYI, written API易 in Chinese (易 means easy), is an AI model API hub: a relay service that resells access to models from many providers through one account, one API key and one prepaid balance. Its documentation names APIYI, LLC in the United States as the operating entity and lists more than 400 models from OpenAI, Anthropic, Google, xAI and Chinese labs such as DeepSeek, Qwen and Kimi. The same brand runs apieasy.net, a site focused on Chinese models.
A program sends its requests to APIYI's endpoint instead of the provider's own, in the OpenAI request format or in the native Claude and Gemini formats, and changes models by changing the model name. Image models include Google's Nano Banana series (the Gemini image models, such as Nano Banana Pro, model gemini-3-pro-image, up to 4K resolution), GPT-Image and FLUX; video models include Google's VEO 3.1, Seedance and Wan.
Use is billed per request or per million tokens and drawn from a prepaid balance, with bonuses for larger top-ups and a 30-day refund of unused balance. For the Nano Banana models, the prices are below Google's official prices.