head to head · open source
haystack vs oh-my-agent
haystack has 26,924 GitHub stars, 3,388 forks, 143 open issues and last shipped yesterday. oh-my-agent has 1,357 stars, 151 forks, 0 open issues and last shipped yesterday. haystack leads on adoption by 1,884% (26,924 vs 1,357 stars). haystack is written in Python under Apache-2.0; oh-my-agent is written in TypeScript under MIT. haystack has attracted 13% as many forks as stars, oh-my-agent 11%. haystack was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), 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 | oh-my-agent | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 1.4K |
| License | Apache-2.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 3.4K | ⑂ 151 |
| 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 oh-my-agent if
- You want the oh-my-agent feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and oh-my-agent 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 oh-my-agent
oh my agent: The Multi Agent Harness That Checks the Work 한국어 中文 Português 日本語 Français Español Nederlands Polski Русский Deutsch Tiếng Việt ภาษาไทย Agents narrate success. oh my agent checks the artifacts. Spawning parallel agents is the easy part. The hard part is knowing whether they actually did the work. "Tests pass, all criteria met" costs an agent nothing to say, and nothing inside that same session can contradict it. oh my agent makes the claim falsifiable. A Stop hook refuses to end your session until your project's own typecheck / test / lint script exits 0. A gate command decides whether a workflow…
read the full oh-my-agent overview →
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Frequently asked questions
Is haystack or oh-my-agent more popular?
haystack has 26,924 GitHub stars and oh-my-agent has 1,357. haystack has the larger community by that measure.
Are haystack and oh-my-agent free?
Both are open source. haystack is licensed under Apache-2.0 and oh-my-agent under MIT. Neither carries a licence fee.
What is the difference between haystack and oh-my-agent?
haystack is written in Python and oh-my-agent in TypeScript. 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 oh-my-agent?
Choose haystack if you want the larger community (26,924 stars) or its Apache-2.0 licence terms. Choose oh-my-agent if its feature set, stack or MIT licence fits better. Both are self-hostable.