Claude Code中英文系列教程26:API开发入门之通过API实现网络搜索助手

Make your first API call to Claude and build a simple web search assistant 下面我们通过向 Claude 发起第一个 API 调用，并构建一个简单的网络搜索助手

Prerequisites 先决条件

An Anthropic Console account Anthropic 控制台账户

console.anthropic.com 已迁移至 platform.claude.com

An API key
一个 API 密钥

Call the API 调用 API

可以通过cURL命令行，Python或Java,下面我们以TypeScript进行示例：

Set your API key 设置 API 密钥

Get your API key from the Claude Console and set it as an environment variable: 从 Claude 控制台获取 API 密钥并将其设置为环境变量：

export ANTHROPIC_API_KEY='your-api-key-here'

Install the SDK 安装 SDK

Install the Anthropic TypeScript SDK: 安装 Anthropic TypeScript SDK:

npm install @anthropic-ai/sdk

Create your code 编写你的代码

Save this as quickstart.ts: 将下面代码保存为 quickstart.ts :

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

async function main() {
  const anthropic = new Anthropic();

  const msg = await anthropic.messages.create({
    model: "claude-sonnet-4-5",
    max_tokens: 1000,
    messages: [
      {
        role: "user",
        content: "What should I search for to find the latest developments in renewable energy?"
      }
    ]
  });
  console.log(msg);
}

main().catch(console.error);

我该如何搜索以找到最新的可再生能源发展动态

Run your code 运行你的代码

npx tsx quickstart.ts

Example output: 示例输出：

{
  id: 'msg_01ThFHzad6Bh4TpQ6cHux9t8',
  type: 'message',
  role: 'assistant',
  model: 'claude-sonnet-4-5-20250929',
  content: [
    {
      type: 'text',
      text: 'Here are some effective search strategies to find the latest renewable energy developments:\n\n' + //这里有一些有效的搜索策略，用于查找最新的可再生能源发展动态
        '## Search Terms to Use:\n' +
        '- "renewable energy news 2024"\n' +
        '- "clean energy breakthroughs"\n' +
        '- "solar wind technology advances"\n' +
        '- "energy storage innovations"\n' +
        '- "green hydrogen developments"\n' +
        '- "offshore wind projects"\n' +
        '- "battery technology renewable"\n\n' +
        '## Best Sources to Check:\n\n' +
        '**News & Industry Sites:**\n' +
        '- Renewable Energy World\n' +
        '- CleanTechnica\n' +
        '- GreenTech Media (now Wood Mackenzie)\n' +
        '- Energy Storage News\n' +
        '- PV Magazine (for solar)...'
    }
  ],
  stop_reason: 'end_turn',
  usage: {
    input_tokens: 21,
    output_tokens: 302
  }
}