tools=[{"type": "web_search_20250305"}]

import anthropic

client = anthropic.Anthropic(
    api_key="your-api-key",
    base_url="https://api.claudeapi.com",
)

response = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1024,
    tools=[{"type": "web_search_20250305"}],  # that's it
    messages=[
        {"role": "user", "content": "What happened in the stock market today?"}
    ]
)

# Parse the response
for block in response.content:
    if block.type == "text":
        print(block.text)

response = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1024,
    tools=[{"type": "web_search_20250305"}],
    messages=[
        {"role": "user", "content": "What new models has Anthropic released recently?"}
    ]
)

for block in response.content:
    if block.type == "tool_use":
        # Claude initiated a search
        print(f"🔍 Search: {block.input}")
    
    elif block.type == "web_search_tool_result":
        # Search results
        for result in block.content:
            if hasattr(result, "url"):
                print(f"📄 Source: {result.title} - {result.url}")
    
    elif block.type == "text":
        # Claude's final answer
        print(f"\n💬 Reply: {block.text}")

🔍 Search: Anthropic new model release 2026

📄 Source: Introducing Claude Opus 4.7 - https://www.anthropic.com/news/claude-opus-4-7
📄 Source: Claude Opus 4.7 is generally available - https://github.blog/changelog/...

💬 Reply: Anthropic released Claude Opus 4.7 on April 16, 2026.
It is the latest in the Opus series, with significant improvements
in coding ability and visual resolution...

import anthropic

client = anthropic.Anthropic(
    api_key="your-api-key",
    base_url="https://api.claudeapi.com",
)

def news_briefing(topic: str) -> str:
    """Generate a real-time news summary for a given topic."""
    response = client.messages.create(
        model="claude-sonnet-4-6",
        max_tokens=2048,
        tools=[{"type": "web_search_20250305"}],
        system="""You are a news analyst. After searching for the latest information, respond in this format:
        
## 📰 Latest on {topic}

### Key Takeaways
- Point 1
- Point 2
- Point 3

### Analysis
(200 words max)

### Sources
List all referenced URLs""",
        messages=[
            {"role": "user", "content": f"Search and summarize the latest news on: {topic}"}
        ]
    )
    
    for block in response.content:
        if block.type == "text":
            return block.text
    return "No information retrieved"

# Usage
print(news_briefing("AI coding tools"))
print(news_briefing("Claude Opus 4.7"))

def compare_prices(product: str) -> str:
    """Search and compare product pricing across platforms."""
    response = client.messages.create(
        model="claude-sonnet-4-6",
        max_tokens=2048,
        tools=[{"type": "web_search_20250305"}],
        system="You are a pricing analyst. After searching, output a Markdown table comparing prices across platforms.",
        messages=[
            {"role": "user", "content": f"Search for {product} pricing across platforms and output a comparison table"}
        ]
    )
    
    for block in response.content:
        if block.type == "text":
            return block.text

print(compare_prices("Claude API vs GPT API pricing"))

def search_docs(question: str) -> str:
    """Search technical documentation to answer a question."""
    response = client.messages.create(
        model="claude-sonnet-4-6",
        max_tokens=2048,
        tools=[{"type": "web_search_20250305"}],
        system="""You are a technical consultant. When answering questions:
1. Search official docs and technical blogs first
2. Give a precise answer with code examples
3. Cite source URLs
4. Flag if information may be outdated""",
        messages=[
            {"role": "user", "content": question}
        ]
    )
    
    for block in response.content:
        if block.type == "text":
            return block.text

# Examples
print(search_docs("What is the latest version of the Python anthropic SDK? How do I install it?"))
print(search_docs("What is the max_tokens limit for Claude?"))

def chat_with_search():
    """Multi-turn conversation with built-in search."""
    messages = []
    
    while True:
        user_input = input("\nYou: ")
        if user_input.lower() in ("quit", "exit"):
            break
        
        messages.append({"role": "user", "content": user_input})
        
        response = client.messages.create(
            model="claude-sonnet-4-6",
            max_tokens=2048,
            tools=[{"type": "web_search_20250305"}],
            messages=messages
        )
        
        assistant_text = ""
        for block in response.content:
            if block.type == "text":
                assistant_text += block.text
        
        print(f"\nClaude: {assistant_text}")
        messages.append({"role": "assistant", "content": response.content})

chat_with_search()

tools=[
    {
        "type": "web_search_20250305",
        "max_uses": 3,  # max 3 searches per conversation turn
    }
]

tools=[
    {
        "type": "web_search_20250305",
        "allowed_domains": [
            "anthropic.com",
            "github.com",
            "stackoverflow.com"
        ]
    }
]

tools=[
    {
        "type": "web_search_20250305",
        "blocked_domains": [
            "reddit.com",
            "quora.com"
        ]
    }
]

# Default: Claude decides whether to search
tools=[{"type": "web_search_20250305"}]

# Nudge Claude to always search (via prompt)
messages=[
    {"role": "user", "content": "Please search the web first, then answer: What are today's top AI news stories?"}
]