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提出请求

AWS 上的 Claude 平台使用 Anthropic Messages API (/v1/messages)，这与 Claude 第一方平台的 API 表面相同。区别在于基本 URL、身份验证方法和anthropic-workspace-id标识请求目标工作空间的必填标头。

壳牌

curl "https://aws-external-anthropic.us-west-2.api.aws/v1/messages" \
  --aws-sigv4 "aws:amz:us-west-2:aws-external-anthropic" \
  --user "$AWS_ACCESS_KEY_ID:$AWS_SECRET_ACCESS_KEY" \
  -H "x-amz-security-token: $AWS_SESSION_TOKEN" \
  -H "content-type: application/json" \
  -H "anthropic-version: 2023-06-01" \
  -H "anthropic-workspace-id: $ANTHROPIC_AWS_WORKSPACE_ID" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 1024,
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

Python

from anthropic import AnthropicAWS

client = AnthropicAWS()

message = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello!"}],
)
print(message)

TypeScript

import AnthropicAws from "@anthropic-ai/aws-sdk";

const client = new AnthropicAws();

const message = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Hello!" }]
});
console.log(message);

C#

using Anthropic;
using Anthropic.Aws;

var client = new AnthropicAwsClient();

var message = await client.Messages.Create(new()
{
    Model = "claude-sonnet-4-6",
    MaxTokens = 1024,
    Messages = [new() { Role = "user", Content = "Hello!" }]
});

Console.WriteLine(message);

Go

client, err := anthropicaws.NewClient(context.Background(), anthropicaws.ClientConfig{})
if err != nil {
    panic(err)
}

message, err := client.Messages.New(context.Background(), anthropic.MessageNewParams{
    Model:     anthropic.ModelClaudeSonnet4_6,
    MaxTokens: 1024,
    Messages: []anthropic.MessageParam{
        anthropic.NewUserMessage(anthropic.NewTextBlock("Hello!")),
    },
})
if err != nil {
    panic(err)
}

fmt.Println(message.Content[0].Text)

Java

import com.anthropic.aws.backends.AwsBackend;
import com.anthropic.client.AnthropicClient;
import com.anthropic.client.okhttp.AnthropicOkHttpClient;
import com.anthropic.models.messages.Message;
import com.anthropic.models.messages.MessageCreateParams;
import com.anthropic.models.messages.Model;

AnthropicClient client = AnthropicOkHttpClient.builder()
    .backend(AwsBackend.fromEnv())
    .build();

Message message = client.messages().create(
    MessageCreateParams.builder()
        .model(Model.CLAUDE_SONNET_4_6)
        .maxTokens(1024)
        .addUserMessage("Hello!")
        .build()
);

IO.println(message);

PHP

use Anthropic\Aws\Client;

$client = new Client();

$message = $client->messages->create(
    model: 'claude-sonnet-4-6',
    maxTokens: 1024,
    messages: [['role' => 'user', 'content' => 'Hello!']],
);

echo $message;

Ruby

require "anthropic"

client = Anthropic::AWSClient.new

message = client.messages.create(
  model: "claude-sonnet-4-6",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Hello!" }]
)

puts message

客户端ANTHROPIC_AWS_WORKSPACE_ID从环境中读取AWS_REGION（或AWS_DEFAULT_REGION）和。你可以通过将aws_region/awsRegion或workspace_id/传递给构造函数workspaceId来覆盖。区域和工作空间 ID 均为必填项；如果无法从这些源中解析出任何一个，则构造函数会抛出。

该--aws-sigv4值遵循格式aws:amz:<region>:<service>。Sigv4 服务名称为aws-external-anthropic，并且该区域必须与您的终端节点 URL 中的区域匹配。两者中的不匹配都会产生一般的签名拒绝错误，而不是特定的诊断。

使用基本的 Anthropic 客户端

如果您不想添加 AWS 开发工具包依赖项，则可以使用基础Anthropic客户端。此路径使用 vanilla SDK 环境变量ANTHROPIC_AWS_*名称，而不是专用客户端读取的名称：

export ANTHROPIC_API_KEY='your-api-key'
export ANTHROPIC_BASE_URL='https://aws-external-anthropic.us-west-2.api.aws'
export ANTHROPIC_WORKSPACE_ID='your-workspace-id'

Python TypeScript、和 Go SDK ANTHROPIC_BASE_URL 会自动读取ANTHROPIC_API_KEY；对于其他语言，请将它们传递给构造函数。在每种语言中，在anthropic-workspace-id标题中传递工作空间 ID。

Python

import os
from anthropic import Anthropic

client = Anthropic(
    # ANTHROPIC_API_KEY and ANTHROPIC_BASE_URL are read automatically
    default_headers={"anthropic-workspace-id": os.environ["ANTHROPIC_WORKSPACE_ID"]},
)

message = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello!"}],
)
print(message.content[0].text)

TypeScript

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

const client = new Anthropic({
  // ANTHROPIC_API_KEY and ANTHROPIC_BASE_URL are read automatically
  defaultHeaders: { "anthropic-workspace-id": process.env.ANTHROPIC_WORKSPACE_ID }
});

const message = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Hello!" }]
});
console.log(message.content);