Konfigurasi tambahan diperlukan untuk menggunakan SDK Klien Anthropic melalui platform mitra. Jika Anda menggunakan Amazon Bedrock, lihat panduan ini; jika Anda menggunakan Google Cloud Vertex AI, lihat panduan ini.

​
Python

Repositori GitHub pustaka Python

Contoh:

Python
import anthropic

client = anthropic.Anthropic(
    # default ke os.environ.get("ANTHROPIC_API_KEY")
    api_key="my_api_key",
)
message = client.messages.create(
    model="claude-sonnet-4-20250514",
    max_tokens=1024,
    messages=[
        {"role": "user", "content": "Hello, Claude"}
    ]
)
print(message.content)

String model yang diterima:

# Model Claude 4
"claude-opus-4-1-20250805"
"claude-opus-4-1"  # alias
"claude-opus-4-20250514"
"claude-opus-4-0"  # alias
"claude-sonnet-4-20250514"
"claude-sonnet-4-0"  # alias

# Model Claude 3.7
"claude-3-7-sonnet-20250219"
"claude-3-7-sonnet-latest"  # alias

# Model Claude 3.5
"claude-3-5-haiku-20241022"
"claude-3-5-haiku-latest"  # alias
"claude-3-5-sonnet-20241022"  # deprecated
"claude-3-5-sonnet-latest"  # alias
"claude-3-5-sonnet-20240620"  # deprecated, versi sebelumnya

# Model Claude 3
"claude-3-opus-20240229"  # deprecated
"claude-3-opus-latest"  # alias
"claude-3-haiku-20240307"

​
TypeScript

Repositori GitHub pustaka TypeScript

Meskipun pustaka ini dalam TypeScript, ini juga dapat digunakan dalam pustaka JavaScript.

Contoh:

TypeScript
import Anthropic from '@anthropic-ai/sdk';

const anthropic = new Anthropic({
  apiKey: 'my_api_key', // default ke process.env["ANTHROPIC_API_KEY"]
});

const msg = await anthropic.messages.create({
  model: "claude-sonnet-4-20250514",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Hello, Claude" }],
});
console.log(msg);

String model yang diterima:

// Model Claude 4
"claude-opus-4-1-20250805"
"claude-opus-4-1"  // alias
"claude-opus-4-20250514"
"claude-opus-4-0"  // alias
"claude-sonnet-4-20250514"
"claude-sonnet-4-0"  // alias

// Model Claude 3.7
"claude-3-7-sonnet-20250219"
"claude-3-7-sonnet-latest"  // alias

// Model Claude 3.5
"claude-3-5-haiku-20241022"
"claude-3-5-haiku-latest"  // alias
"claude-3-5-sonnet-20241022"  // deprecated
"claude-3-5-sonnet-latest"  // alias
"claude-3-5-sonnet-20240620"  // deprecated, versi sebelumnya

// Model Claude 3
"claude-3-opus-20240229"  // deprecated
"claude-3-opus-latest"  // alias
"claude-3-haiku-20240307"

​
Java

Repositori GitHub pustaka Java

Contoh:

Java
import com.anthropic.models.Message;
import com.anthropic.models.MessageCreateParams;
import com.anthropic.models.Model;

MessageCreateParams params = MessageCreateParams.builder()
    .maxTokens(1024L)
    .addUserMessage("Hello, Claude")
    .model(Model.CLAUDE_SONNET_4_0)
    .build();
Message message = client.messages().create(params);

Nilai enum model:

// Model Claude 4
Model.CLAUDE_OPUS_4_1
Model.CLAUDE_OPUS_4_1_20250805
Model.CLAUDE_OPUS_4_0
Model.CLAUDE_OPUS_4_20250514
Model.CLAUDE_SONNET_4_0
Model.CLAUDE_SONNET_4_20250514

// Model Claude 3.7
Model.CLAUDE_3_7_SONNET_LATEST
Model.CLAUDE_3_7_SONNET_20250219

// Model Claude 3.5
Model.CLAUDE_3_5_HAIKU_LATEST
Model.CLAUDE_3_5_HAIKU_20241022
Model.CLAUDE_3_5_SONNET_LATEST
Model.CLAUDE_3_5_SONNET_20241022  // deprecated
Model.CLAUDE_3_5_SONNET_20240620  // deprecated

// Model Claude 3
Model.CLAUDE_3_OPUS_LATEST
Model.CLAUDE_3_OPUS_20240229  // deprecated
Model.CLAUDE_3_HAIKU_20240307

​
Go

Repositori GitHub pustaka Go

Contoh:

Go
package main

import (
	"context"
	"fmt"
	"github.com/anthropics/anthropic-sdk-go/option"

	"github.com/anthropics/anthropic-sdk-go"
)

func main() {
	client := anthropic.NewClient(
		option.WithAPIKey("my-anthropic-api-key"),
	)

	message, err := client.Messages.New(context.TODO(), anthropic.MessageNewParams{
		Model:     anthropic.ModelClaudeSonnet4_0,
		MaxTokens: 1024,
		Messages: []anthropic.MessageParam{
			anthropic.NewUserMessage(anthropic.NewTextBlock("What is a quaternion?")),
		},
	})
	if err != nil {
		fmt.Printf("Error creating message: %v\n", err)
		return
	}

	fmt.Printf("%+v\n", message.Content)
}

Konstanta Model:

// Model Claude 4
anthropic.ModelClaudeOpus4_1
anthropic.ModelClaudeOpus4_1_20250805
anthropic.ModelClaudeOpus4_0
anthropic.ModelClaudeOpus4_20250514
anthropic.ModelClaudeSonnet4_0
anthropic.ModelClaudeSonnet4_20250514

// Model Claude 3.7
anthropic.ModelClaude3_7SonnetLatest
anthropic.ModelClaude3_7Sonnet20250219

// Model Claude 3.5
anthropic.ModelClaude3_5HaikuLatest
anthropic.ModelClaude3_5Haiku20241022
anthropic.ModelClaude3_5SonnetLatest
anthropic.ModelClaude3_5Sonnet20241022  // deprecated
anthropic.ModelClaude_3_5_Sonnet_20240620  // deprecated

// Model Claude 3
anthropic.ModelClaude3OpusLatest
anthropic.ModelClaude_3_Opus_20240229  // deprecated
anthropic.ModelClaude_3_Haiku_20240307

​
Ruby

Repositori GitHub pustaka Ruby

Contoh:

ruby
require "bundler/setup"
require "anthropic"

anthropic = Anthropic::Client.new(
  api_key: "my_api_key" # default ke ENV["ANTHROPIC_API_KEY"]
)

message =
  anthropic.messages.create(
    max_tokens: 1024,
    messages: [{
      role: "user",
      content: "Hello, Claude"
    }],
    model: "claude-sonnet-4-20250514"
  )

puts(message.content)

String model yang diterima:

# Model Claude 4
:"claude-opus-4-1-20250805"
:"claude-opus-4-1"  # alias
:"claude-opus-4-20250514"
:"claude-opus-4-0"  # alias
:"claude-sonnet-4-20250514"
:"claude-sonnet-4-0"  # alias

# Model Claude 3.7
:"claude-3-7-sonnet-20250219"
:"claude-3-7-sonnet-latest"  # alias

# Model Claude 3.5
:"claude-3-5-haiku-20241022"
:"claude-3-5-haiku-latest"  # alias
:"claude-3-5-sonnet-20241022"  # deprecated
:"claude-3-5-sonnet-latest"  # alias
:"claude-3-5-sonnet-20240620"  # deprecated, versi sebelumnya

# Model Claude 3
:"claude-3-opus-20240229"  # deprecated
:"claude-3-opus-latest"  # alias
:"claude-3-haiku-20240307"

​
PHP

Repositori GitHub pustaka PHP

SDK PHP saat ini dalam versi beta.

Contoh:

PHP
<?php

use Anthropic\Client;
use Anthropic\Messages\MessageParam;

$client = new Client(
  apiKey: getenv("ANTHROPIC_API_KEY") ?: "my-anthropic-api-key"
);

$message = $client->messages->create(
  maxTokens: 1024,
  messages: [MessageParam::with(role: "user", content: "Hello, Claude")],
  model: "claude-sonnet-4-20250514",
);
var_dump($message->content);

String model yang diterima:

// Model Claude 4
"claude-opus-4-1-20250805"
"claude-opus-4-1"  // alias
"claude-opus-4-20250514"
"claude-opus-4-0"  // alias
"claude-sonnet-4-20250514"
"claude-sonnet-4-0"  // alias

// Model Claude 3.7
"claude-3-7-sonnet-20250219"
"claude-3-7-sonnet-latest"  // alias

// Model Claude 3.5
"claude-3-5-haiku-20241022"
"claude-3-5-haiku-latest"  // alias
"claude-3-5-sonnet-20241022"  // deprecated
"claude-3-5-sonnet-latest"  // alias
"claude-3-5-sonnet-20240620"  // deprecated, versi sebelumnya

// Model Claude 3
"claude-3-opus-20240229"  // deprecated
"claude-3-opus-latest"  // alias
"claude-3-haiku-20240307"

Konstanta Model:

// Model Claude 4
Model::CLAUDE_OPUS_4_1_20250805
Model::CLAUDE_OPUS_4_0  // alias
Model::CLAUDE_OPUS_4_20250514
Model::CLAUDE_SONNET_4_20250514
Model::CLAUDE_SONNET_4_0  // alias

// Model Claude 3.7
Model::CLAUDE_3_7_SONNET_LATEST  // alias
Model::CLAUDE_3_7_SONNET_20250219

// Model Claude 3.5
Model::CLAUDE_3_5_HAIKU_LATEST  // alias
Model::CLAUDE_3_5_HAIKU_20241022
Model::CLAUDE_3_5_SONNET_LATEST  // alias
Model::CLAUDE_3_5_SONNET_20241022  // deprecated
Model::CLAUDE_3_5_SONNET_20240620  // deprecated, versi sebelumnya

// Model Claude 3
Model::CLAUDE_3_OPUS_LATEST  // alias
Model::CLAUDE_3_OPUS_20240229  // deprecated
Model::CLAUDE_3_HAIKU_20240307

​
Namespace beta dalam SDK klien

Setiap SDK memiliki namespace beta yang tersedia. Ini digunakan untuk fitur-fitur baru yang dirilis Anthropic dalam versi beta. Gunakan ini bersama dengan header beta untuk menggunakan fitur-fitur ini.

import anthropic

client = anthropic.Anthropic(
    # default ke os.environ.get("ANTHROPIC_API_KEY")
    api_key="my_api_key",
)
message = client.beta.messages.create(
    model="claude-sonnet-4-20250514",
    max_tokens=1024,
    messages=[
        {"role": "user", "content": "Hello, Claude"}
    ],
    betas=["beta-feature-name"]
)
print(message.content)