Claude 프로토콜: Anthropic Messages API 연동

POST https://api.laozhang.ai/v1/messages

export LAOZHANG_API_KEY="YOUR_LAOZHANG_API_KEY"

{
  "type": "message",
  "role": "assistant",
  "model": "glm-5.2",
  "content": [
    {"type": "text", "text": "connected"}
  ],
  "stop_reason": "end_turn",
  "usage": {"input_tokens": 21, "output_tokens": 4}
}

event: message_start
data: {"type":"message_start","message":{"type":"message","role":"assistant","content":[]}}

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":"1. 변수 이름은"}}

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

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

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

[
  {"role": "user", "content": "파리의 날씨는 어때요?"},
  {"role": "assistant", "content": [
    {"type": "tool_use", "id": "toolu_01", "name": "get_weather", "input": {"city": "Paris"}}
  ]},
  {"role": "user", "content": [
    {"type": "tool_result", "tool_use_id": "toolu_01", "content": "18°C, 흐림"}
  ]}
]

import os
from anthropic import Anthropic

client = Anthropic(
    api_key=os.environ["LAOZHANG_API_KEY"],
    base_url="https://api.laozhang.ai",
    timeout=120.0,
    max_retries=0,
)
tools = [{
    "name": "get_weather",
    "description": "도시의 현재 날씨를 조회합니다",
    "input_schema": {
        "type": "object",
        "properties": {"city": {"type": "string", "description": "도시 이름"}},
        "required": ["city"],
    },
}]


def get_weather(city):
    # 날씨 서비스 호출 같은 실제 로직으로 바꾸세요
    return f"{city}: 흐림, 18°C"


messages = [{"role": "user", "content": "파리의 날씨는 어때요?"}]
for _ in range(5):
    message = client.messages.create(
        model="glm-5.2",
        max_tokens=1024,
        tools=tools,
        messages=messages,
    )
    tool_uses = [block for block in message.content if block.type == "tool_use"]
    if not tool_uses:
        break
    messages.append({"role": "assistant", "content": message.content})
    results = []
    for block in tool_uses:
        if block.name == "get_weather":
            output = get_weather(**block.input)
        else:
            output = f"알 수 없는 도구: {block.name}"
        results.append({
            "type": "tool_result",
            "tool_use_id": block.id,
            "content": output,
        })
    messages.append({"role": "user", "content": results})

print("".join(block.text for block in message.content if block.type == "text"))