Tool Use

from anthropic import Anthropic

client = Anthropic(
    base_url="https://api.naga.ac",
    api_key="YOUR_API_KEY",
)

message = client.messages.create(
    model="claude-sonnet-4.5",
    max_tokens=256,
    messages=[
        {
            "role": "user",
            "content": "Check the weather in Prague and tell me if I need a coat.",
        }
    ],
    tools=[
        {
            "name": "lookup_weather",
            "description": "Look up current weather for a city.",
            "input_schema": {
                "type": "object",
                "properties": {
                    "city": {"type": "string"}
                },
                "required": ["city"],
            },
        }
    ],
)

if message.stop_reason == "tool_use":
    tool_use = next(block for block in message.content if block.type == "tool_use")
    print(tool_use.name)
    print(tool_use.input)

import Anthropic from '@anthropic-ai/sdk';

const client = new Anthropic({
  baseURL: 'https://api.naga.ac',
  apiKey: 'YOUR_API_KEY',
});

const message = await client.messages.create({
  model: 'claude-sonnet-4.5',
  max_tokens: 256,
  messages: [
    { role: 'user', content: 'Check the weather in Prague and tell me if I need a coat.' },
  ],
  tools: [
    {
      name: 'lookup_weather',
      description: 'Look up current weather for a city.',
      input_schema: {
        type: 'object',
        properties: {
          city: { type: 'string' },
        },
        required: ['city'],
      },
    },
  ],
});

if (message.stop_reason === 'tool_use') {
  const toolUse = message.content.find((block) => block.type === 'tool_use');
  console.log(toolUse?.name);
  console.log(toolUse?.input);
}

curl https://api.naga.ac/v1/messages \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4.5",
    "max_tokens": 256,
    "messages": [
      {
        "role": "user",
        "content": "Check the weather in Prague and tell me if I need a coat."
      }
    ],
    "tools": [
      {
        "name": "lookup_weather",
        "description": "Look up current weather for a city.",
        "input_schema": {
          "type": "object",
          "properties": {
            "city": { "type": "string" }
          },
          "required": ["city"]
        }
      }
    ],
    "tool_choice": {
      "type": "auto"
    }
  }'