{"data":{"node":{"slug":"langchain4j-langchain4j","name":"langchain4j","tagline":"Java library for building LLM-powered applications on the JVM","github_url":"https://github.com/langchain4j/langchain4j","owner":"langchain4j","repo":"langchain4j","owner_avatar_url":"https://avatars.githubusercontent.com/u/132277850?v=4","primary_language":"Java","stars":12813,"forks":2435,"topics":["anthropic","chatgpt","chroma","embeddings","gemini","gpt","huggingface","java","langchain","llama","llm","llms","milvus","ollama","onnx","openai","openai-api","pgvector","pinecone","vector-database"],"archived":false,"github_pushed_at":"2026-08-06T10:50:58+00:00","maintenance_label":"Very active","stars_delta_30d":265,"url":"https://www.graphcanon.com/tools/langchain4j-langchain4j","markdown_url":"https://www.graphcanon.com/tools/langchain4j-langchain4j.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langchain4j-langchain4j","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langchain4j-langchain4j"},"categories":[{"slug":"llm-frameworks","name":"LLM Frameworks","url":"https://www.graphcanon.com/categories/llm-frameworks","markdown_url":"https://www.graphcanon.com/categories/llm-frameworks.md","api_url":"https://www.graphcanon.com/api/graphcanon/categories/llm-frameworks"},{"slug":"vector-databases","name":"Vector Databases","url":"https://www.graphcanon.com/categories/vector-databases","markdown_url":"https://www.graphcanon.com/categories/vector-databases.md","api_url":"https://www.graphcanon.com/api/graphcanon/categories/vector-databases"}],"tags":[{"slug":"anthropic","name":"anthropic"},{"slug":"chatgpt","name":"chatgpt"},{"slug":"chroma","name":"chroma"},{"slug":"embeddings","name":"embeddings"},{"slug":"gemini","name":"gemini"},{"slug":"gpt","name":"gpt"},{"slug":"huggingface","name":"huggingface"},{"slug":"llm","name":"llm"}],"edges":[{"type":"alternative","direction":"out","explanation":"LangChain4j provides a Java API for building LLM-powered applications, similar to LangChain's purpose but tailored specifically for the JVM ecosystem.","successor_context":null,"tool":{"slug":"langchain-ai-langchain","name":"langchain","tagline":"The agent engineering platform.","github_url":"https://github.com/langchain-ai/langchain","owner":"langchain-ai","repo":"langchain","owner_avatar_url":"https://avatars.githubusercontent.com/u/126733545?v=4","primary_language":"Python","stars":143615,"forks":23930,"topics":["agents","ai","ai-agents","anthropic","chatgpt","deepagents","enterprise","framework","gemini","generative-ai","langchain","langgraph","llm","multiagent","open-source","openai","pydantic","python","rag","typescript"],"archived":false,"github_pushed_at":"2026-08-07T08:27:07+00:00","maintenance_label":"Very active","stars_delta_30d":2337,"url":"https://www.graphcanon.com/tools/langchain-ai-langchain","markdown_url":"https://www.graphcanon.com/tools/langchain-ai-langchain.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langchain-ai-langchain","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langchain-ai-langchain"}},{"type":"alternative","direction":"out","explanation":"Haystack and LangChain4j both offer AI orchestration capabilities for integrating LLMs into real-world applications, making them alternatives tailored to different needs.","successor_context":null,"tool":{"slug":"deepset-ai-haystack","name":"haystack","tagline":"Open-source AI orchestration framework for building context-engineered LLM applications.","github_url":"https://github.com/deepset-ai/haystack","owner":"deepset-ai","repo":"haystack","owner_avatar_url":"https://avatars.githubusercontent.com/u/51827949?v=4","primary_language":"Python","stars":26073,"forks":2972,"topics":["agent","agents","ai","gemini","generative-ai","gpt-4","information-retrieval","large-language-models","llm","machine-learning","nlp","orchestration","python","pytorch","question-answering","rag","retrieval-augmented-generation","semantic-search","summarization","transformers"],"archived":false,"github_pushed_at":"2026-08-01T03:06:32+00:00","maintenance_label":"Very active","url":"https://www.graphcanon.com/tools/deepset-ai-haystack","markdown_url":"https://www.graphcanon.com/tools/deepset-ai-haystack.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/deepset-ai-haystack","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=deepset-ai-haystack"}},{"type":"integrates_with","direction":"out","explanation":"Langchain4j, a Java library for developing LLM-driven applications on the JVM, has an 'integrates with' relationship to Langflow, a tool offering visual authoring experiences and API/server capabilities for building AI workflows, because Langflow's API/MCP server can be used to manage and deploy workflows created using Langchain4j.","successor_context":null,"tool":{"slug":"langflow-ai-langflow","name":"langflow","tagline":"Tool for building and deploying AI-powered agents and workflows","github_url":"https://github.com/langflow-ai/langflow","owner":"langflow-ai","repo":"langflow","owner_avatar_url":"https://avatars.githubusercontent.com/u/85702467?v=4","primary_language":"Python","stars":152744,"forks":9747,"topics":["agents","chatgpt","generative-ai","large-language-models","multiagent","react-flow"],"archived":false,"github_pushed_at":"2026-08-02T00:44:47+00:00","maintenance_label":"Very active","url":"https://www.graphcanon.com/tools/langflow-ai-langflow","markdown_url":"https://www.graphcanon.com/tools/langflow-ai-langflow.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langflow-ai-langflow","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langflow-ai-langflow"}},{"type":"alternative","direction":"out","explanation":"Both LangChain4j and Quivr provide tools to integrate LLMs into applications, offering RAG capabilities. However, they target different programming environments (Java for LangChain4j vs other languages potentially supported by Quivr).","successor_context":null,"tool":{"slug":"quivrhq-quivr","name":"quivr","tagline":"Opiniated RAG for integrating GenAI in your apps 🧠","github_url":"https://github.com/QuivrHQ/quivr","owner":"QuivrHQ","repo":"quivr","owner_avatar_url":"https://avatars.githubusercontent.com/u/159330290?v=4","primary_language":"Python","stars":39401,"forks":3727,"topics":["ai","api","chatbot","chatgpt","database","docker","framework","frontend","groq","html","javascript","llm","openai","postgresql","privacy","rag","react","security","typescript","vector"],"archived":false,"github_pushed_at":"2025-07-09T12:55:23+00:00","maintenance_label":"Dormant","stars_delta_30d":188,"url":"https://www.graphcanon.com/tools/quivrhq-quivr","markdown_url":"https://www.graphcanon.com/tools/quivrhq-quivr.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/quivrhq-quivr","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=quivrhq-quivr"}},{"type":"integrates_with","direction":"out","explanation":"LangChain4j supports tool calling including MCP support which could integrate with FastMCP for building efficient MCP servers and clients.","successor_context":null,"tool":{"slug":"prefecthq-fastmcp","name":"fastmcp","tagline":"The fast Pythonic way to build MCP servers and clients","github_url":"https://github.com/PrefectHQ/fastmcp","owner":"PrefectHQ","repo":"fastmcp","owner_avatar_url":"https://avatars.githubusercontent.com/u/39270919?v=4","primary_language":"Python","stars":26846,"forks":2187,"topics":["agents","fastmcp","llms","mcp","mcp-clients","mcp-servers","mcp-tools","model-context-protocol","python"],"archived":false,"github_pushed_at":"2026-07-26T04:12:21+00:00","maintenance_label":"Very active","url":"https://www.graphcanon.com/tools/prefecthq-fastmcp","markdown_url":"https://www.graphcanon.com/tools/prefecthq-fastmcp.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/prefecthq-fastmcp","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=prefecthq-fastmcp"}},{"type":"related","direction":"out","explanation":"While LlamaFactory focuses on fine-tuning numerous models, LangChain4j provides a framework for integrating these models into applications.","successor_context":null,"tool":{"slug":"hiyouga-llamafactory","name":"LlamaFactory","tagline":"Unified Efficient Fine-Tuning of 100+ LLMs & VLMs","github_url":"https://github.com/hiyouga/LlamaFactory","owner":"hiyouga","repo":"LlamaFactory","owner_avatar_url":"https://avatars.githubusercontent.com/u/16256802?v=4","primary_language":"Python","stars":74132,"forks":9071,"topics":["agent","ai","deepseek","fine-tuning","gemma","gpt","instruction-tuning","large-language-models","llama","llama3","llm","lora","moe","nlp","peft","qlora","quantization","qwen","rlhf","transformers"],"archived":false,"github_pushed_at":"2026-08-13T12:45:56+00:00","maintenance_label":"Very active","stars_delta_30d":803,"url":"https://www.graphcanon.com/tools/hiyouga-llamafactory","markdown_url":"https://www.graphcanon.com/tools/hiyouga-llamafactory.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/hiyouga-llamafactory","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=hiyouga-llamafactory"}},{"type":"related","direction":"out","explanation":null,"successor_context":null,"tool":{"slug":"shubhamsaboo-awesome-llm-apps","name":"awesome-llm-apps","tagline":"Over 100 runnable AI Agent and RAG apps to clone, tweak, and deploy.","github_url":"https://github.com/Shubhamsaboo/awesome-llm-apps","owner":"Shubhamsaboo","repo":"awesome-llm-apps","owner_avatar_url":"https://avatars.githubusercontent.com/u/31396011?v=4","primary_language":"Python","stars":131230,"forks":19346,"topics":["agents","llms","python","rag"],"archived":false,"github_pushed_at":"2026-08-03T03:30:58+00:00","maintenance_label":"Very active","stars_delta_30d":14464,"url":"https://www.graphcanon.com/tools/shubhamsaboo-awesome-llm-apps","markdown_url":"https://www.graphcanon.com/tools/shubhamsaboo-awesome-llm-apps.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/shubhamsaboo-awesome-llm-apps","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=shubhamsaboo-awesome-llm-apps"}},{"type":"alternative","direction":"in","explanation":"LangChain focuses on Python, whereas langchain4j provides similar functionality for JVM applications in Java.","successor_context":null,"tool":{"slug":"langchain-ai-langchain","name":"langchain","tagline":"The agent engineering platform.","github_url":"https://github.com/langchain-ai/langchain","owner":"langchain-ai","repo":"langchain","owner_avatar_url":"https://avatars.githubusercontent.com/u/126733545?v=4","primary_language":"Python","stars":143615,"forks":23930,"topics":["agents","ai","ai-agents","anthropic","chatgpt","deepagents","enterprise","framework","gemini","generative-ai","langchain","langgraph","llm","multiagent","open-source","openai","pydantic","python","rag","typescript"],"archived":false,"github_pushed_at":"2026-08-07T08:27:07+00:00","maintenance_label":"Very active","stars_delta_30d":2337,"url":"https://www.graphcanon.com/tools/langchain-ai-langchain","markdown_url":"https://www.graphcanon.com/tools/langchain-ai-langchain.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langchain-ai-langchain","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langchain-ai-langchain"}}],"neighbours":[{"slug":"langchain-ai-langchain","name":"langchain","tagline":"The agent engineering platform.","github_url":"https://github.com/langchain-ai/langchain","owner":"langchain-ai","repo":"langchain","owner_avatar_url":"https://avatars.githubusercontent.com/u/126733545?v=4","primary_language":"Python","stars":143615,"forks":23930,"topics":["agents","ai","ai-agents","anthropic","chatgpt","deepagents","enterprise","framework","gemini","generative-ai","langchain","langgraph","llm","multiagent","open-source","openai","pydantic","python","rag","typescript"],"archived":false,"github_pushed_at":"2026-08-07T08:27:07+00:00","maintenance_label":"Active","url":"https://www.graphcanon.com/tools/langchain-ai-langchain","markdown_url":"https://www.graphcanon.com/tools/langchain-ai-langchain.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langchain-ai-langchain","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langchain-ai-langchain","shared_categories":["llm-frameworks"]},{"slug":"chatchat-space-langchain-chatchat","name":"Langchain-Chatchat","tagline":"Local knowledge-based RAG and Agent app using Langchain and various LLMs","github_url":"https://github.com/chatchat-space/Langchain-Chatchat","owner":"chatchat-space","repo":"Langchain-Chatchat","owner_avatar_url":"https://avatars.githubusercontent.com/u/139558948?v=4","primary_language":"Python","stars":38522,"forks":6266,"topics":["chatbot","chatchat","chatglm","chatgpt","embedding","faiss","fastchat","gpt","knowledge-base","langchain","langchain-chatglm","llama","llm","milvus","ollama","qwen","rag","retrieval-augmented-generation","streamlit","xinference"],"archived":false,"github_pushed_at":"2025-11-10T09:27:42+00:00","maintenance_label":"Slowing","url":"https://www.graphcanon.com/tools/chatchat-space-langchain-chatchat","markdown_url":"https://www.graphcanon.com/tools/chatchat-space-langchain-chatchat.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/chatchat-space-langchain-chatchat","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=chatchat-space-langchain-chatchat","shared_categories":["llm-frameworks"]},{"slug":"kalyanks-nlp-llm-engineer-toolkit","name":"llm-engineer-toolkit","tagline":"A curated list of over 120 LLM libraries categorized.","github_url":"https://github.com/KalyanKS-NLP/llm-engineer-toolkit","owner":"KalyanKS-NLP","repo":"llm-engineer-toolkit","owner_avatar_url":"https://avatars.githubusercontent.com/u/202506543?v=4","primary_language":null,"stars":10767,"forks":1682,"topics":["ai-engineer","generative-ai","large-language-models","llm-engineer","llms"],"archived":false,"github_pushed_at":"2026-08-16T13:05:43+00:00","maintenance_label":"Very active","url":"https://www.graphcanon.com/tools/kalyanks-nlp-llm-engineer-toolkit","markdown_url":"https://www.graphcanon.com/tools/kalyanks-nlp-llm-engineer-toolkit.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/kalyanks-nlp-llm-engineer-toolkit","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=kalyanks-nlp-llm-engineer-toolkit","shared_categories":[]},{"slug":"alibaba-spring-ai-alibaba","name":"spring-ai-alibaba","tagline":"A production-ready framework for building Agentic, Workflow, and Multi-agent applications","github_url":"https://github.com/alibaba/spring-ai-alibaba","owner":"alibaba","repo":"spring-ai-alibaba","owner_avatar_url":"https://avatars.githubusercontent.com/u/1961952?v=4","primary_language":"Java","stars":10543,"forks":2347,"topics":["agentic","artificial-intelligence","context-engineering","graph","java","multi-agent","reactagent","spring-ai","workflow"],"archived":false,"github_pushed_at":"2026-08-06T14:20:42+00:00","maintenance_label":"Active","url":"https://www.graphcanon.com/tools/alibaba-spring-ai-alibaba","markdown_url":"https://www.graphcanon.com/tools/alibaba-spring-ai-alibaba.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/alibaba-spring-ai-alibaba","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=alibaba-spring-ai-alibaba","shared_categories":[]},{"slug":"tmc-langchaingo","name":"langchaingo","tagline":"LangChain for Go, the easiest way to write LLM-based programs in Go","github_url":"https://github.com/tmc/langchaingo","owner":"tmc","repo":"langchaingo","owner_avatar_url":"https://avatars.githubusercontent.com/u/3977?v=4","primary_language":"Go","stars":9600,"forks":1135,"topics":["ai","go","golang","langchain"],"archived":false,"github_pushed_at":"2026-01-11T16:59:56+00:00","maintenance_label":"Slowing","url":"https://www.graphcanon.com/tools/tmc-langchaingo","markdown_url":"https://www.graphcanon.com/tools/tmc-langchaingo.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/tmc-langchaingo","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=tmc-langchaingo","shared_categories":["llm-frameworks"]},{"slug":"liaokongvfx-langchain-chinese-getting-started-guide","name":"LangChain-Chinese-Getting-Started-Guide","tagline":"LangChain 的中文入门教程","github_url":"https://github.com/liaokongVFX/LangChain-Chinese-Getting-Started-Guide","owner":"liaokongVFX","repo":"LangChain-Chinese-Getting-Started-Guide","owner_avatar_url":"https://avatars.githubusercontent.com/u/13622183?v=4","primary_language":null,"stars":9097,"forks":713,"topics":["aigc","chatgpt","langchain","openai","openai-api"],"archived":false,"github_pushed_at":"2026-04-22T16:31:50+00:00","maintenance_label":"Slowing","url":"https://www.graphcanon.com/tools/liaokongvfx-langchain-chinese-getting-started-guide","markdown_url":"https://www.graphcanon.com/tools/liaokongvfx-langchain-chinese-getting-started-guide.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/liaokongvfx-langchain-chinese-getting-started-guide","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=liaokongvfx-langchain-chinese-getting-started-guide","shared_categories":["llm-frameworks"]},{"slug":"gkamradt-langchain-tutorials","name":"langchain-tutorials","tagline":"Overview and tutorial of the LangChain Library","github_url":"https://github.com/gkamradt/langchain-tutorials","owner":"gkamradt","repo":"langchain-tutorials","owner_avatar_url":"https://avatars.githubusercontent.com/u/9809213?v=4","primary_language":"Jupyter Notebook","stars":7480,"forks":2013,"topics":[],"archived":false,"github_pushed_at":"2024-08-05T09:18:46+00:00","maintenance_label":"Dormant","url":"https://www.graphcanon.com/tools/gkamradt-langchain-tutorials","markdown_url":"https://www.graphcanon.com/tools/gkamradt-langchain-tutorials.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/gkamradt-langchain-tutorials","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=gkamradt-langchain-tutorials","shared_categories":[]},{"slug":"langchain-ai-chat-langchain","name":"chat-langchain","tagline":"A documentation assistant demonstrating managed deep agent deployment and LangChain agents.","github_url":"https://github.com/langchain-ai/chat-langchain","owner":"langchain-ai","repo":"chat-langchain","owner_avatar_url":"https://avatars.githubusercontent.com/u/126733545?v=4","primary_language":"TypeScript","stars":6433,"forks":1488,"topics":[],"archived":false,"github_pushed_at":"2026-08-13T14:29:27+00:00","maintenance_label":"Active","url":"https://www.graphcanon.com/tools/langchain-ai-chat-langchain","markdown_url":"https://www.graphcanon.com/tools/langchain-ai-chat-langchain.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langchain-ai-chat-langchain","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langchain-ai-chat-langchain","shared_categories":[]},{"slug":"langroid-langroid","name":"langroid","tagline":"Harness LLMs with Multi-Agent Programming","github_url":"https://github.com/langroid/langroid","owner":"langroid","repo":"langroid","owner_avatar_url":"https://avatars.githubusercontent.com/u/130325191?v=4","primary_language":"Python","stars":4090,"forks":390,"topics":["agents","ai","chatgpt","function-calling","gpt","gpt-4","gpt4","information-retrieval","language-model","llama","llm","llm-agent","llm-framework","local-llm","multi-agent-systems","openai-api","rag","retrieval-augmented-generation"],"archived":false,"github_pushed_at":"2026-07-29T12:59:53+00:00","maintenance_label":"Active","url":"https://www.graphcanon.com/tools/langroid-langroid","markdown_url":"https://www.graphcanon.com/tools/langroid-langroid.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langroid-langroid","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langroid-langroid","shared_categories":[]},{"slug":"patterns-ai-core-langchainrb","name":"langchainrb","tagline":"Build LLM-powered applications in Ruby","github_url":"https://github.com/patterns-ai-core/langchainrb","owner":"patterns-ai-core","repo":"langchainrb","owner_avatar_url":"https://avatars.githubusercontent.com/u/166417795?v=4","primary_language":"Ruby","stars":1989,"forks":262,"topics":["agents","ai-agents","artificial-intelligence","machine-learning","ml","rubyml","vector-search"],"archived":false,"github_pushed_at":"2026-05-01T13:06:13+00:00","maintenance_label":"Slowing","url":"https://www.graphcanon.com/tools/patterns-ai-core-langchainrb","markdown_url":"https://www.graphcanon.com/tools/patterns-ai-core-langchainrb.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/patterns-ai-core-langchainrb","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=patterns-ai-core-langchainrb","shared_categories":["vector-databases"]},{"slug":"langgraph4j-langgraph4j","name":"langgraph4j","tagline":"A library for developing AI Agentic Architectures in Java","github_url":"https://github.com/langgraph4j/langgraph4j","owner":"langgraph4j","repo":"langgraph4j","owner_avatar_url":"https://avatars.githubusercontent.com/u/212100817?v=4","primary_language":"Java","stars":1908,"forks":263,"topics":["agents","ai","langchain4j","langgraph","spring-ai","workflow"],"archived":false,"github_pushed_at":"2026-08-09T18:47:31+00:00","maintenance_label":"Active","url":"https://www.graphcanon.com/tools/langgraph4j-langgraph4j","markdown_url":"https://www.graphcanon.com/tools/langgraph4j-langgraph4j.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/langgraph4j-langgraph4j","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=langgraph4j-langgraph4j","shared_categories":[]},{"slug":"forethought-technologies-autochain","name":"AutoChain","tagline":"Build lightweight, extensible, and testable LLM Agents","github_url":"https://github.com/Forethought-Technologies/AutoChain","owner":"Forethought-Technologies","repo":"AutoChain","owner_avatar_url":"https://avatars.githubusercontent.com/u/32120602?v=4","primary_language":"Python","stars":1878,"forks":103,"topics":[],"archived":false,"github_pushed_at":"2025-12-16T20:53:26+00:00","maintenance_label":"Slowing","url":"https://www.graphcanon.com/tools/forethought-technologies-autochain","markdown_url":"https://www.graphcanon.com/tools/forethought-technologies-autochain.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/forethought-technologies-autochain","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=forethought-technologies-autochain","shared_categories":[]}]}}