Responses API

CCR accepts OpenAI Responses requests at:

• POST /v1/responses
• POST /responses

Configure an OpenAI SDK with:

export OPENAI_BASE_URL=http://127.0.0.1:3456/v1
export OPENAI_API_KEY=your-router-api-key

The route supports string and message-array input, instructions, text/images by URL or data URL, function calls/results, function tools, reasoning effort/summary intent, token limits, usage, JSON responses, and ordered response.* SSE events. Function-call IDs are normalized to the Responses length and character limits while remaining correlated within the turn.

CCR does not own OpenAI conversation state. It rejects store: true, previous_response_id, conversation, and background execution. Provider file IDs and hosted tools that cannot be represented safely through the selected provider are also rejected. Stream success closes after response.completed; stream failures emit response.failed. Chat Completions' [DONE] marker is not part of the client Responses stream.