Onsol-GO/.agents/skills/developing-genkit-dart/references/genkit_anthropic.md

Genkit Anthropic Plugin (genkit_anthropic)

The Anthropic plugin for Genkit Dart, used for interacting with the Claude models.

Usage

Requires ANTHROPIC_API_KEY to be passed to the init block.

import 'dart:io';
import 'package:genkit/genkit.dart';
import 'package:genkit_anthropic/genkit_anthropic.dart';

void main() async {
  final ai = Genkit(
    plugins: [anthropic(apiKey: Platform.environment['ANTHROPIC_API_KEY']!)],
  );

  final response = await ai.generate(
    model: anthropic.model('claude-sonnet-4-5'),
    prompt: 'Tell me a joke about a developer.',
  );
  
  print(response.text);
}

Claude Thinking Configurations

Provides specific configurations for utilizing Claude 3.7+ "thinking" model capabilities.

final response = await ai.generate(
  model: anthropic.model('claude-sonnet-4-5'),
  prompt: 'Solve this 24 game: 2, 3, 10, 10',
  config: AnthropicOptions(thinking: ThinkingConfig(budgetTokens: 2048)),
);

// The thinking content is available in the message parts
print(response.message?.content);