Open-source AI orchestration framework for building context-engineered, production-ready LLM applications.
About haystack #
Haystack is an open-source AI orchestration framework for building production-ready LLM applications in Python.
Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Build scalable RAG systems, multimodal applications, semantic search, question answering, and autonomous agents, all in a transparent architecture that lets you experiment, customize deeply, and deploy with confidence.
Haystack supports multiple installation methods, including Docker images. For a comprehensive guide, please refer to the documentation.
haystack is an open-source project written primarily in Python, with 26k stars on GitHub. It was last updated in July 2026.
pip install haystack-ai