haystack
Open-source AI orchestration framework for building context-engineered LLM applications.
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Decision brief
Haystack is an open-source AI orchestration framework for building context-engineered LLM applications.
Good fit when
- You need explicit control over retrieval, routing, memory, and generation within your LLM application pipelines.
- Your project requires support for scalable agents, RAG (Retrieval Augmented Generation), and multimodal applications.
Avoid when
- You require integration with specific proprietary tools or frameworks not supported by Haystack.
- Your development team is not familiar with Python-based technologies, since Haystack primarily supports Python-based workflows.
- Pricing:
- freemium - Free and open-source under the Apache-2.0 license, but users have to manage their own infrastructure and resources.
- Requirements:
- Min 4 GB RAM; Requires Docker
Observed Jul 11, 2026 · Source: enrich:decision_facts
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Maintenance and security
Full trust report- Maintenance
- Very active (0d since push)
- As of 2w
- Provenance
- Not a fork · Organization account
- As of 2w
- Security (OSV)
- No lockfile
- As of 1mo
Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.
Install
pip install haystack PyPIHow it fits your stack(24)
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Evidence and technical details
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Overview
Haystack provides tools to design modular pipelines and agent workflows with control over retrieval, routing, memory, and generation. Supports scalable agents, RAG, multimodal apps, semantic search, conversational systems.
Capability facts
- Languages
- python
Source: github.language+pyproject.toml · Aug 1, 2026
Categories
Compatibility
Sourced claims from the README excerpt - not unsourced marketing copy.
Source: README excerpt (regex_v1, Aug 1, 2026)
pip install haystack-aiSource link
Tags
README
Installation
The simplest way to get Haystack is via pip:
pip install haystack-ai
Install nightly pre-releases to try the newest features:
pip install --pre haystack-ai
Haystack supports multiple installation methods, including Docker images. For a comprehensive guide, please refer to the documentation.
For agents
This page has a .md twin and JSON over the API.