0CHAT is a unified API gateway that aggregates access to various large language models (LLMs) and AI services from multiple providers. It offers standardized endpoints compatible with OpenAI's API format, allowing developers to switch between different models by changing the base URL.
Key capabilities:
- Chat completions via
/v1/chat/completions,/v1/responses, and/v1/messagesendpoints - Text embeddings through
/v1/embeddings - Image generation and editing with
/v1/images/generations,/v1/images/edits, and/v1/images/variations - Audio processing including speech synthesis (
/v1/audio/speech), transcription (/v1/audio/transcriptions), and translation (/v1/audio/translations) - Model listing via
/v1beta/models - Text reranking with
/v1/rerank
Supported providers include: MoonshotAI, OpenAI, Grok, Zhipu, Volcengine, Cohere, Claude, Gemini, Suno, Minimax, Wenxin, Spark, Qingyan, DeepSeek, Qwen, Midjourney, AzureAI, Hunyuan, Xinference, and others.
Notable features: No subscription required, pay-as-you-go pricing model with competitive rates mentioned as 'better price', and emphasis on stability. The service positions itself as a drop-in replacement for existing OpenAI API implementations.

