Claude 对话 (Messages)

POST

/v1/messages

请求参数

Authorization

Header 参数

Body 参数application/json必填

示例

{
    "model": "claude-3-5-sonnet-20241022",
    "max_tokens": 1024,
    "system": "你是一个简洁的助手。",
    "messages": [
        {
            "role": "user",
            "content": "你好"
        }
    ]
}

请求示例代码

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location 'https://2-api.com/v1/messages' \
--header 'anthropic-version;' \
--header 'Content-Type: application/json' \
--data '{
    "model": "claude-3-5-sonnet-20241022",
    "max_tokens": 1024,
    "system": "你是一个简洁的助手。",
    "messages": [
        {
            "role": "user",
            "content": "你好"
        }
    ]
}'

返回响应

🟢200

application/json

成功（非流式返回 JSON；当 stream=true 时返回 SSE 事件流）

Bodyapplication/json

示例

{
    "id": "msg_xxx",
    "type": "message",
    "role": "assistant",
    "model": "claude-3-5-sonnet-20241022",
    "content": [
        {
            "type": "text",
            "text": "你好！有什么可以帮你？"
        }
    ],
    "stop_reason": "end_turn",
    "usage": {
        "input_tokens": 12,
        "output_tokens": 9
    }
}

🟠401Unauthorized

🟠429RateLimited

修改于 2026-06-04 03:32:51

模型列表 (List Models)

估算 token (Count Tokens)