x-api-key: YOUR_API_KEY
anthropic-version: 2023-06-01
content-type: application/json

POST /v1/messages

curl --request POST \
  --url https://your-domain/v1/messages \
  --header 'x-api-key: YOUR_API_KEY' \
  --header 'anthropic-version: 2023-06-01' \
  --header 'content-type: application/json' \
  --data '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 8,
    "messages": [{"role": "user", "content": "只回复 OK"}]
  }'

{
  "id": "msg_example",
  "type": "message",
  "role": "assistant",
  "model": "claude-sonnet-4-6",
  "content": [
    {
      "type": "text",
      "text": "OK"
    }
  ],
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {
    "input_tokens": 8,
    "output_tokens": 1,
    "cache_creation_input_tokens": 0,
    "cache_read_input_tokens": 0
  }
}