--- title: 文档 url: https://platform.claude.com/docs/zh-CN/home description: Claude API 文档 --- 快速入门获取 API 密钥 API 参考 ```python Python import anthropic client = anthropic.Anthropic() message = client.messages.create( model="claude-opus-5-5", max_tokens=1024, messages=[ { "role": "user", "content": "Hello, Claude", } ], ) for block in message.content: if block.type == "text": print(block.text) ``` ```typescript TypeScript import Anthropic from "@anthropic-ai/sdk"; const client = new Anthropic(); const msg = await client.messages.create({ model: "claude-opus-5-5", max_tokens: 1024, messages: [ { role: "user", content: "Hello, Claude" } ] }); for (const block of msg.content) { if (block.type === "text") { console.log(block.text); } } ``` ```go Go import "github.com/anthropics/anthropic-sdk-go" client := anthropic.NewClient() msg, _ := client.Messages.New( context.TODO(), anthropic.MessageNewParams{ Model: anthropic.ModelClaudeOpus5_5, MaxTokens: 1024, Messages: []anthropic.MessageParam{ anthropic.NewUserMessage( anthropic.NewTextBlock("Hello, Claude"), ), }, }, ) for _, block := range msg.Content { if textBlock, ok := block.AsAny().(anthropic.TextBlock); ok { fmt.Println(textBlock.Text) } } ``` ```java Java import com.anthropic.client.okhttp.AnthropicOkHttpClient; var client = AnthropicOkHttpClient .fromEnv(); var msg = client.messages().create( MessageCreateParams.builder() .model("claude-opus-5-5") .maxTokens(1024) .addUserMessage("Hello, Claude") .build() ); for (var block : msg.content()) { block.text().ifPresent( textBlock -> System.out.println(textBlock.text())); } ``` ```ruby Ruby require "anthropic" client = Anthropic::Client.new msg = client.messages.create( model: "claude-opus-5-5", max_tokens: 1024, messages: [{ role: "user", content: "Hello, Claude" }] ) msg.content.each do |block| puts block.text if block.type == :text end ``` ```php PHP use Anthropic\Client; $client = new Client(); $message = $client->messages->create( model: "claude-opus-5-5", maxTokens: 1024, messages: [['role' => 'user', 'content' => 'Hello, Claude']], ); foreach ($message->content as $block) { if ($block->type === 'text') { echo $block->text, PHP_EOL; } } ``` ```csharp C# using Anthropic; var client = new AnthropicClient(); var msg = await client.Messages .Create(new() { Model = "claude-opus-5-5", MaxTokens = 1024, Messages = [new() { Role = Role.User, Content = "Hello, Claude" }] }); foreach (var block in msg.Content) { if (block.TryPickText(out var textBlock)) { Console.WriteLine(textBlock.Text); } } ``` ```bash cURL curl https://api.anthropic.com/v1/messages \ -H "content-type: application/json" \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H "anthropic-version: 2023-06-01" \ -d '{ "model": "claude-opus-5-5", "max_tokens": 1024, "messages": [{ "role": "user", "content": "Hello, Claude" }] }' ``` ```bash CLI ant messages create \ --model claude-opus-5-5 \ --max-tokens 1024 \ --message '{ role: user, content: "Hello, Claude" }' ``` 快速入门 API 参考客户端 SDK 快速入门 API 参考定义您的智能体 Amazon Bedrock Google Cloud Microsoft Foundry 快速入门获取 API 密钥选择模型安装 SDK 在 playground 中试用 API Messages API 思考视觉工具使用网页搜索代码执行结构化输出提示缓存流式传输提示最佳实践运行评估批量测试安全与防护速率限制与错误成本优化工作区与管理 API 密钥管理用量监控模型迁移快速入门获取 API 密钥在 Console 中构建智能体设置工具工具权限流式传输与事件 Sessions API 参考工作区与管理 API 密钥管理用量监控 * [Claude Fable 5.1](https://platform.claude.com/docs/zh-CN/models/fable-5-1/overview) (`claude-fable-5-1`) — New — *For demanding reasoning and long-horizon agentic work* — Most capable · Research · Multi-day tasks * [Claude Opus 5.5](https://platform.claude.com/docs/zh-CN/models/opus-5-5/overview) (`claude-opus-5-5`) — New — *For long-running agentic coding and knowledge work* — Complex projects · Agents · Coding * [Claude Sonnet 5.5](https://platform.claude.com/docs/zh-CN/models/sonnet-5-5/overview) (`claude-sonnet-5-5`) — New — *The best combination of speed and intelligence* — Everyday tasks · Writing · Cost-efficient * [Claude Haiku 5.5](https://platform.claude.com/docs/zh-CN/models/haiku-5-5/overview) (`claude-haiku-5-5`) — New — *For high-volume, latency-sensitive tasks such as classification, extraction, and routing* — Fastest · Lowest cost · High volume 掌握 Claude 的互动课程。代码示例与模式。可部署的入门应用。最新功能与更新。您终端中的智能体编码助手。