Create a Message - Anthropic 消息创建

更新时间：2026-08-13 10:47:55

功能说明

此接口用于与 Anthropic 模型进行消息交互，遵循 Anthropic Messages API 规范。使用专用前缀 /api/anthropic/v1/messages，支持多轮对话、流式响应、工具调用等功能。

调用说明

接口约束

调用者需要拥有 API Key，详情请参见管理 AI API Key。

请求路径

POST https://ai-api-cn.oceanbase.com/api/anthropic/v1/messages

请求头

名称	是否必选	示例值	描述
x-api-key	是	YOUR_API_KEY	鉴权信息
anthropic-version	否	2023-06-01	Anthropic API 版本
Content-Type	是	application/json	请求体格式

请求参数

Path 参数

此接口无 Path 参数。

Query 参数

此接口无 Query 参数。

Body 参数

名称	类型	是否必填	示例值	描述
model	string	是	kimi-k2.6	模型名称，支持的模型请参见查询 Anthropic 模型列表
max_tokens	integer	是	1024	Anthropic 官方要求必填，建议始终显式传入。不同模型有不同的最大值限制
messages	array[object]	是	[{"role": "user", "content": "Hello"}]	消息列表。支持多轮对话，每条消息包含 role 和 content
system	string 或 array[object]	否	"You are a helpful assistant"	系统提示词，用于提供上下文和指令

messages 字段说明

每条消息包含以下字段：

名称	类型	是否必填	描述
role	string	是	角色，可选值：user（用户）、assistant（助手）
content	string 或 array[object]	是	消息内容。可以是字符串，也可以是内容块数组

content 内容块类型：

文本内容：{"type": "text", "text": "消息文本"}
图片内容：{"type": "image", "source": {"type": "base64", "media_type": "image/jpeg", "data": "..."}}
工具使用：{"type": "tool_use", "id": "...", "name": "...", "input": {...}}
工具结果：{"type": "tool_result", "tool_use_id": "...", "content": "..."}

返回结果

返回参数

名称	类型	描述
success	boolean	请求是否成功
code	string	返回码
message	string	返回信息
data	object	业务返回数据

请求示例

基础文本对话

curl -sS -X POST "https://ai-api-cn.oceanbase.com/api/anthropic/v1/messages" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kimi-k2.6",
    "max_tokens": 1024,
    "messages": [
      {
        "role": "user",
        "content": "你好"
      }
    ]
  }'

多轮对话

curl -sS -X POST "https://ai-api-cn.oceanbase.com/api/anthropic/v1/messages" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kimi-k2.6",
    "max_tokens": 1024,
    "system": "You are a helpful assistant",
    "messages": [
      {
        "role": "user",
        "content": "Hello there."
      },
      {
        "role": "assistant",
        "content": "Hi! How can I help you?"
      },
      {
        "role": "user",
        "content": "Can you explain LLMs in plain English?"
      }
    ]
  }'

流式响应

curl -sS -X POST "https://ai-api-cn.oceanbase.com/api/anthropic/v1/messages" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kimi-k2.6",
    "max_tokens": 1024,
    "messages": [
      {
        "role": "user",
        "content": "Write a short poem"
      }
    ],
    "stream": true
  }'

返回示例

成功响应

{
  "id": "msg_01XYZ",
  "type": "message",
  "role": "assistant",
  "content": [
    {
      "type": "text",
      "text": "Hello! How can I help you today?"
    }
  ],
  "model": "kimi-k2.6",
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {
    "input_tokens": 10,
    "output_tokens": 8,
    "cache_creation_input_tokens": 0,
    "cache_read_input_tokens": 0
  }
}

流式响应事件

event: message_start
data: {"type": "message_start", "message": {"id": "msg_01XYZ", "type": "message", "role": "assistant", "content": [], "model": "kimi-k2.6", "stop_reason": null, "usage": {"input_tokens": 10, "output_tokens": 0}}}

event: content_block_start
data: {"type": "content_block_start", "index": 0, "content_block": {"type": "text", "text": ""}}

event: content_block_delta
data: {"type": "content_block_delta", "index": 0, "delta": {"type": "text_delta", "text": "Hello"}}

event: content_block_delta
data: {"type": "content_block_delta", "index": 0, "delta": {"type": "text_delta", "text": "!"}}

event: content_block_stop
data: {"type": "content_block_stop", "index": 0}

event: message_delta
data: {"type": "message_delta", "delta": {"stop_reason": "end_turn"}, "usage": {"output_tokens": 8}}

event: message_stop
data: {"type": "message_stop"}

错误响应

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "messages: field required"
  }
}