Claude API 使用文档

Anthropic Claude 是由 Anthropic 开发的大语言模型，以安全性和有用性著称。

安装

Python

pip install anthropic

JavaScript

npm install @anthropic-ai/sdk

curl

# curl 无需安装，系统自带

基础用法

Python

import anthropic

client = anthropic.Anthropic(
    api_key="your-api-key",
    base_url="https://www.cheapertoken.work",
)

message = client.messages.create(
    model="claude-opus-4-7",
    max_tokens=1024,
    messages=[
        {"role": "user", "content": "你好，请介绍一下你自己"}
    ]
)

print(message.content[0].text)

JavaScript

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

const client = new Anthropic({
  apiKey: "your-api-key",
  baseURL: "https://www.cheapertoken.work",
});

const message = await client.messages.create({
  model: "claude-opus-4-7",
  max_tokens: 1024,
  messages: [{ role: "user", content: "你好，请介绍一下你自己" }],
});

console.log(message.content[0].text);

curl

curl https://www.cheapertoken.work/v1/messages \
  -H "x-api-key: your-api-key" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "claude-opus-4-7",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "你好，请介绍一下你自己"}]
  }'

常用模型

模型	说明
claude-opus-4-7	最强能力，适合复杂任务、代码、智能体
claude-opus-4-6	上一代旗舰模型
claude-sonnet-4-6	速度与能力平衡，适合大多数场景