rosetta-ai

Universal translator between AI provider protocols.

Convert between OpenAI Chat Completions, OpenAI Responses, Anthropic Messages, and Google Gemini APIs — with full support for tool calling, multimodal content, extended thinking, web search, grounding, and streaming.

Install

npm install @zenmux/rosetta-ai

How It Works

Each converter follows the gateway pattern: request goes forward (user protocol → backend protocol), while response and stream go backward (backend → user).

User ──request──→ [Converter] ──request──→ Backend
User ←─response── [Converter] ←─response── Backend
User ←──stream─── [Converter] ←──stream─── Backend

One converter instance handles the full round-trip for a single gateway route.

Converters