Built in Python, haystack is an open-source AI agent tool maintained by deepset-ai. The repository has collected 27k stars and 3.3k forks; the latest push was in October 2026. Related topics: agent-framework, agentic-ai and agentic-rag.
“Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.”
— deepset-ai, project description on GitHub
Details
| Category | AI Agents |
|---|---|
| GitHub stars | 26,770 |
| Forks | 3,302 |
| Language | Python |
| License | Apache-2.0 |
| Last updated | |
| Owner | deepset-ai |
| Website | haystack.deepset.ai |
| Repository | deepset-ai/haystack |
| Also listed in | RAG & Search |
Tags
agent-frameworkagentic-aiagentic-ragagentsaiai-agentscontext-engineeringframework
Repository facts from the GitHub public API, refreshed October 18, 2026. The quoted tagline is written by the project owner; the summary above is generated from public facts.