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Haystack

RAG Frameworks · Open source

Open-source framework for production LLM applications, RAG pipelines, search, and agentic workflows.

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Exa

RAG Frameworks· exa.ai

Freemium

AI-native web search, crawling, and research API with MCP support for retrieval and grounding in production agent workflows.

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LangChain4j

RAG Frameworks· docs.langchain4j.dev

Open source

Java framework for integrating LLMs, RAG pipelines, tools, and agent workflows into JVM applications.

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RAGFlow

RAG Frameworks· ragflow.io

Open source

RAGFlow is an open-source RAG engine with document understanding, hybrid search, and agent orchestration for building production retrieval workflows over complex files.

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Morphik

RAG Frameworks· morphik.ai

Freemium

AI-native multimodal document ingestion, retrieval, and search infrastructure for RAG applications.

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pip install haystack-ai
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