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, ia 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"

​
Namespace beta dalam SDK klien

Setiap SDK memiliki namespace beta yang tersedia. Ini digunakan untuk 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)