Chat API Reference

curl -X POST 'https://deepseekapi.org/v1/chat/completions' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "deepseek-r1",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

{
    "id": "chatcmpl-89DfwUKlVhwwWlvnJRHYYe8kziLjl",
    "object": "chat.completion",
    "created": 1740450262,
    "model": "deepseek-r1",
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "<think>\n\n</think>\n\nHi! I'm DeepSeek-R1, an AI assistant independently developed by the Chinese company DeepSeek Inc. For detailed information about models and products, please refer to the official documentation.",
                "reasoning_content": ""
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 13,
        "completion_tokens": 43,
        "total_tokens": 56,
        "prompt_tokens_details": {
            "text_tokens": 6
        },
        "completion_tokens_details": {
            "content_tokens": 43
        }
    }
}