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Solon-AI

Java LLM(tool, skill) & RAG & MCP & Agent(ReAct, Team) Application development framework
Restraint, efficiency and openness
It is the same type of development framework as LangChain, LangGraph and LlamaIndex

https://solon.noear.org/article/learn-solon-ai

Ask DeepWiki Maven Apache 2 jdk-8 jdk-11 jdk-17 jdk-21 jdk-25
gitee star github star gitcode star

Language: English | 中文

简介

Solon AI is one of the core subprojects of the Solon project. It is a full-scenario Java AI development framework, which aims to deeply integrate LLM large model, RAG knowledge base, MCP protocol and Agent collaboration choreography.

  • Full use case support: fits perfectly into the Solon ecosystem and can be seamlessly integrated into frameworks like SpringBoot, Vert.X, Quarkus, etc.
  • Multi-model dialects: Adapt model differences by dialect using ChatModel's unified interface (OpenAI, Gemini, Claude, Ollama, DeepSeek, Dashscope, etc.).
  • Graph-driven orchestration: supports the transformation of Agent reasoning into observable and governable computation flow graphs.

Examples of embeddings (including third-party frameworks) for solon-ai:

What types of applications can be developed?

  • General-purpose Autonomous Agents (e.g., Manus, OpenOperator)
  • Intelligent Assistants & RAG Knowledge Bases (e.g., Dify, Coze)
  • Multi-Agent Collaborative Orchestration (e.g., AutoGPT, MetaGPT)
  • Business-Driven Controlled Workflows (e.g., AI-enhanced DingTalk/Lark approvals, SAP Intelligent Modules)
  • Intelligent Document Processing & ETL (e.g., Instabase, Unstructured.io)
  • Real-time Data Insights & Dashboards (e.g., Text-to-SQL applications)
  • Automated Testing & Quality Assurance (e.g., GitHub Copilot Workspace)
  • Low-Code/Visual AI Workflow Platforms (e.g., LangFlow, Flowise)
  • And more...

Synthetic sample project (can be used directly for production or customization)

Core Module Experience

  • ChatModel(General Purpose LLM call interface)

Support for synchronous and Reactive calls, built-in dialect adaptation, Tool, Skill, ChatSession, etc.

ChatModel chatModel = ChatModel.of("http://127.0.0.1:11434/api/chat") .provider("ollama") //Need to specify vendor, used to identify interface style (also called dialect) .model("qwen2.5:1.5b") .defaultSkillAdd(new ToolGatewaySkill()) .build(); // Synchronize the call and print the response message AssistantMessage result = ChatchatModel.prompt("The weather in Hangzhou today?") .options(op->op.toolAdd(new WeatherTools())) //Adding tools .call() .getMessage(); System.out.println(result); // Stream call chatModel.prompt("hello").stream(); //Publisher<ChatResponse>
  • Skills(Solon AI Skills)
Skill skill = new SkillDesc("order_expert") .description("Order Assistant") // Dynamic admission: Activated only when "order" is mentioned .isSupported(prompt -> prompt.getUserMessageContent().contains("order")) // Dynamic instructions: Inject different Sops depending on whether the user is a VIP or not .instruction(prompt -> { if ("VIP".equals(prompt.getMeta("user_level"))) { return "This is a VIP customer, please call fast_track_tool first."; } return "Process the order inquiry according to the normal process."; }) .toolAdd(new OrderTools()); chatModel.prompt("Where is my order from yesterday?") .options(o->o.skillAdd(skill)) .call();
  • RAG(知识库)

It provides full-link support from DocumentLoader, DocumentSplitter, EmbeddingModel, and RerankingModel.

//Building a Knowledge Warehouse EmbeddingModel embeddingModel = EmbeddingModel.of(apiUrl).apiKey(apiKey).provider(provider).model(model).batchSize(10).build(); RerankingModel rerankingModel = RerankingModel.of(apiUrl).apiKey(apiKey).provider(provider).model(model).build(); InMemoryRepository repository = new InMemoryRepository(TestUtils.getEmbeddingModel()); //3.初始化知识库 repository.insert(new PdfLoader(pdfUri).load()); //retrieval List<Document> docs = repository.search(query); //You can rearrange it if you want docs = rerankingModel.rerank(query, docs); //Cue enhancement is ChatMessage message = ChatMessage.ofUserAugment(query, docs); //Calling the llm chatModel.prompt(message) .call();
  • MCP (Model Context Protocol)

Deep integration with MCP protocol (MCP_2025_06_18), supporting cross-platform tool, resource, and prompt sharing.

//server @McpServerEndpoint(channel = McpChannel.STREAMABLE, mcpEndpoint = "/mcp") public class MyMcpServer { @ToolMapping(description = "Checking the weather") public String getWeather(@Param(description = "city") String location) { return "It's sunny, 25 degrees"; } } //client McpClientProvider clientProvider = McpClientProvider.builder() .channel(McpChannel.STREAMABLE) .url("http://localhost:8080/mcp") .build();
  • Agent (An Agent Experience with Computational Flow Graphs)

The Solon AI Agent transforms reasoning logic into graph-driven collaboration flows, enabling ReAct introspective reasoning and multi-agent Team collaboration.

//Reflective intelligent agent: ReActAgent agent = ReActAgent.of(chatModel) // 或者用 SimpleAgent.of(chatModel) .name("weather_expert") .description("Check the weather and provide advice") .defaultToolAdd(weatherTool) // Inject MCP or local tools .build(); agent.prompt("What to wear in Beijing today?").call(); // Autocomplete: Think -> Call tool -> Observe -> Summarize // Constructing a team agent: Automatically arranging member roles through protocols TeamAgent team = TeamAgent.of(chatModel) .name("marketing_team") .protocol(TeamProtocols.HIERARCHICAL) // Hierarchical collaboration (6 preset protocols) .agentAdd(copywriterAgent) // Copywriter expert .agentAdd(illustratorAgent) // Illustrator expert .build(); team.prompt("Plan a promotion scheme for deep-sea mineral water").call(); // Supervisor automatically decomposes tasks and assigns them to corresponding experts .defaultToolAdd(weatherTool) // Inject MCP or local tools
  • Ai Flow(Process orchestration experience)

The low-code flow application of Dify is simulated, and the links such as RAG, hint word enhancement and model call are YAML arranged.

id: demo1 layout: - type: "start" - task: "@VarInput" meta: message: "Solon 是谁开发的?" - task: "@EmbeddingModel" meta: embeddingConfig: # "@type": "org.noear.solon.ai.embedding.EmbeddingConfig" provider: "ollama" model: "bge-m3" apiUrl: "http://127.0.0.1:11434/api/embed" - task: "@InMemoryRepository" meta: documentSources: - "https://solon.noear.org/article/about?format=md" splitPipeline: - "org.noear.solon.ai.rag.splitter.RegexTextSplitter" - "org.noear.solon.ai.rag.splitter.TokenSizeTextSplitter" - task: "@ChatModel" meta: systemPrompt: "你是个知识库" stream: false chatConfig: # "@type": "org.noear.solon.ai.chat.ChatConfig" provider: "ollama" model: "qwen2.5:1.5b" apiUrl: "http://127.0.0.1:11434/api/chat" - task: "@ConsoleOutput" # FlowEngine flowEngine = FlowEngine.newInstance(); # ... # flowEngine.eval("demo1");

Solon Project code repository

Code repository Description
/opensolon/solon Solon ,Main code repository
/opensolon/solon-examples Solon ,Official website supporting sample code repository
/opensolon/solon-expression Solon Expression ,Code repository
/opensolon/solon-flow Solon Flow ,Code repository
/opensolon/solon-ai Solon Ai ,Code repository
/opensolon/solon-cloud Solon Cloud ,Code repository
/opensolon/solon-admin Solon Admin ,Code repository
/opensolon/solon-integration Solon Integration ,Code repository
/opensolon/solon-java17 Solon Java17 ,Code repository(base java17)
/opensolon/solon-java25 Solon Java25 ,Code repository(base java25)
/opensolon/solon-gradle-plugin Solon Gradle ,Plugin code repository
/opensolon/solon-idea-plugin Solon Idea ,Plugin code repository
/opensolon/solon-vscode-plugin Solon VsCode ,Plugin code repository

About

Java AI application development framework (supports LLM-tool,skill; RAG; MCP; Agent-ReAct,Team-Agent). Compatible with java8 ~ java25. It can also be embedded in SpringBoot, jFinal, Vert.x, Quarkus, and other frameworks.

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