{
  "openapi": "3.1.0",
  "info": {
    "title": "PixelRouter OpenAI-Compatible AEO Gateway",
    "version": "1.0.0",
    "description": "Sub-35ms OpenAI-compatible API gateway and smart LLM router by Pixel Office EU."
  },
  "servers": [
    {
      "url": "https://api.pixeloffice.eu/v1"
    }
  ],
  "paths": {
    "/chat/completions": {
      "post": {
        "summary": "Create chat completion (with SSE streaming support)",
        "operationId": "createChatCompletion",
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "model": {
                    "type": "string",
                    "default": "blun-auto"
                  },
                  "messages": {
                    "type": "array",
                    "items": {
                      "type": "object"
                    }
                  },
                  "stream": {
                    "type": "boolean",
                    "default": false
                  }
                },
                "required": [
                  "messages"
                ]
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "OpenAI Chat Completion or SSE Stream"
          }
        }
      }
    },
    "/models": {
      "get": {
        "summary": "List available models",
        "responses": {
          "200": {
            "description": "List of available models"
          }
        }
      }
    },
    "/health": {
      "get": {
        "summary": "Gateway health check",
        "responses": {
          "200": {
            "description": "Health status"
          }
        }
      }
    }
  }
}