head to head · open source
haystack vs AutoSwarm-Shadow-Adapter
haystack has 26,796 GitHub stars, 3,311 forks, 143 open issues and last shipped yesterday. AutoSwarm-Shadow-Adapter has 2,190 stars, 2 forks, 1 open issues and last shipped 2 days ago. haystack leads on adoption by 1,124% (26,796 vs 2,190 stars). haystack is written in Python under Apache-2.0; AutoSwarm-Shadow-Adapter is written in Python under MIT. haystack has attracted 12% as many forks as stars, AutoSwarm-Shadow-Adapter 0%. haystack was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (agentic-ai, generative-ai), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| haystack | AutoSwarm-Shadow-Adapter | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 2.2K |
| License | Apache-2.0 | MIT |
| Written in | Python | Python |
| Last push | 2026-10-21 | 2026-10-20 |
| Forks | ⑂ 3.3K | ⑂ 2 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick haystack if
- You weight community size — 27K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick AutoSwarm-Shadow-Adapter if
- You want the AutoSwarm-Shadow-Adapter feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and AutoSwarm-Shadow-Adapter fits your workflow better
About haystack
🎉🎊✨ Haystack 3.0 is out! ✨🎊🎉 Read the announcement here! 🥳 🎈 🎆 🪅 🎇 🍾 🥂 🎁 🌈 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. Table of Contents Installation Documentation Features Haystack Enterprise: Support &…
read the full haystack overview →
About AutoSwarm-Shadow-Adapter
AutoSwarm Shadow Adapter Non Blocking Human in the Loop (HITL) & BYOC Infrastructure for AutoSwarm AI Agent Employees For Your Compan The Carbon Silicon Continuum: Real Humans & Remote PCs as First Class AutoSwarm Employees Built for AutoSwarm Zero Core Modifications Production Release v0.1.0 What is AutoSwarm Shadow Adapter? AutoSwarm shadow adapter is a high concurrency Temporal Bridge for AutoSwarm. It allows AutoSwarm agentic DAGs to pause non blockingly when a role requires human sign off (Carbon) or remote GPU execution (Silicon BYOC), without causing engine timeouts or stalling parallel branches. 1. Non…
read the full AutoSwarm-Shadow-Adapter overview →
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Frequently asked questions
Is haystack or AutoSwarm-Shadow-Adapter more popular?
haystack has 26,796 GitHub stars and AutoSwarm-Shadow-Adapter has 2,190. haystack has the larger community by that measure.
Are haystack and AutoSwarm-Shadow-Adapter free?
Both are open source. haystack is licensed under Apache-2.0 and AutoSwarm-Shadow-Adapter under MIT. Neither carries a licence fee.
What is the difference between haystack and AutoSwarm-Shadow-Adapter?
haystack is written in Python and AutoSwarm-Shadow-Adapter in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, haystack or AutoSwarm-Shadow-Adapter?
Choose haystack if you want the larger community (26,796 stars) or its Apache-2.0 licence terms. Choose AutoSwarm-Shadow-Adapter if its feature set, stack or MIT licence fits better. Both are self-hostable.