OAI2API is an API gateway that offers a single, standardized interface for accessing services from various AI providers. It supports API endpoints compatible with the OpenAI format, including /v1/chat/completions, /v1/embeddings, /v1/images/generations, /v1/audio/transcriptions, and others like responses, reranking, and speech generation. The platform lists support for over 30 providers, including MoonshotAI, OpenAI, Anthropic Claude, Google Gemini, Grok, Zhipu AI, Cohere, DeepSeek, and Midjourney. It functions as a proxy layer, allowing developers to switch providers by changing the base URL. The service emphasizes a pay-as-you-go model without subscription requirements. A notice indicates that some free models are self-deployed, not official APIs, and their availability is not guaranteed.

