ai4j

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Java 8+ agentic SDK: unified LLM access (OpenAI/Anthropic/DashScope/Doubao/DeepSeek...), Tool Calling, MCP, RAG, Agent Runtime, and a built-in Coding Agent CLI/TUI/ACP.

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# ai4j

一款面向 **JDK 8+** 的 Java AI Agentic 开发套件：统一的大模型接入、Tool Calling、MCP、A2A、RAG、Agent Runtime，以及内置的 Coding Agent CLI / TUI / ACP。

[English README](README-EN.md)

## 安装

- Gradle：`implementation 'io.github.lnyo-cly:ai4j:2.4.2'`
- Maven：`<dependency><groupId>io.github.lnyo-cly</groupId><artifactId>ai4j</artifactId><version>2.4.2</version></dependency>`

## 30 秒跑通

设置 `OPENAI_API_KEY` 后，下面代码即可发出第一条请求：

```java
import io.github.lnyocly.ai4j.config.OpenAiConfig;
import io.github.lnyocly.ai4j.platform.openai.chat.entity.ChatCompletion;
import io.github.lnyocly.ai4j.platform.openai.chat.entity.ChatCompletionResponse;
import io.github.lnyocly.ai4j.platform.openai.chat.entity.ChatMessage;
import io.github.lnyocly.ai4j.service.Configuration;
import io.github.lnyocly.ai4j.service.IChatService;
import io.github.lnyocly.ai4j.service.PlatformType;
import io.github.lnyocly.ai4j.service.factory.AiService;
public class Ai4jFirstChat {
    public static void main(String[] args) {
        OpenAiConfig openAiConfig = new OpenAiConfig();
        openAiConfig.setApiKey(System.getenv("OPENAI_API_KEY"));
        Configuration configuration = new Configuration();
        configuration.setOpenAiConfig(openAiConfig);
        AiService aiService = new AiService(configuration);
        IChatService chatService = aiService.getChatService(PlatformType.OPENAI);
        ChatCompletion request = ChatCompletion.builder()
                .model("gpt-4o-mini")
                .message(ChatMessage.withUser("用一句话介绍 ai4j"))
                .build();
        ChatCompletionResponse response = chatService.chatCompletion(request);
        System.out.println(response.getChoices().get(0).getMessage().getContent().getText());
    }
}
```

输出示例：
```
ai4j 是一款面向 JDK 8+ 的 Java AI Agentic 开发套件，覆盖统一模型接入、Tool Calling、MCP 与 RAG。
```

> 换成 DashScope / DeepSeek / Ollama 等其他平台？只需替换 `PlatformType` 与对应 Config，其余代码不变。

## 链接

- 文档站：https://lnyo-cly.github.io/ai4j/
- [5 分钟跑通](docs-site/docs/start-here/five-minute-first-chat.md) / [能力地图](docs-site/docs/start-here/feature-map.md)
- [Coding Agent CLI / TUI / ACP](docs/readme/zh/coding-agent-cli.md) / [A2A Protocol](docs-site/docs/agent/a2a.md)
- [CHANGELOG](CHANGELOG.md) / [CONTRIBUTING](CONTRIBUTING.md)

## 支持的平台

OpenAI / OpenAI-compatible, Anthropic, DashScope（通义/百炼）, Doubao（火山方舟/豆包）, DeepSeek, Moonshot, Zhipu（智谱）, Hunyuan（腾讯混元）, Lingyi（零一万物）, Ollama, MiniMax, Baichuan, Suno；Rerank（Jina / Ollama / Doubao）；AgentFlow（Dify / Coze / n8n）；VectorStore（Pinecone / Qdrant / pgvector / Milvus / Redis）。完整能力列表见 [feature-map](docs-site/docs/start-here/feature-map.md)。

## License

[Apache License 2.0](LICENSE)

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