head to head · open source
ponytail vs Agno
ponytail has 141,230 GitHub stars, 7,572 forks, 270 open issues and last shipped 4 days ago. Agno has 42,219 stars, 5,948 forks, 1,419 open issues and last shipped yesterday. ponytail leads on adoption by 235% (141,230 vs 42,219 stars). ponytail is written in JavaScript under MIT; Agno is written in Python under Apache-2.0. ponytail has attracted 5% as many forks as stars, Agno 14%. Agno was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agents, developer-tools), 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
| ponytail | Agno | |
|---|---|---|
| GitHub stars | ★ 141K | ★ 42K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Python |
| Last push | 2026-09-14 | 2026-09-17 |
| Forks | ⑂ 7.6K | ⑂ 5.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 141K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick Agno if
- You want the Agno feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and Agno fits your workflow better
About ponytail
Ponytail is an open source agent skill for JavaScript and LLM based coding tools that makes an AI agent write the minimum working code for a task, and it is built for developers and teams running agents such as Claude Code, Codex, or Cursor against real repositories.
read the full ponytail overview →
About Agno
Agno is a model agnostic platform for building, running, and managing AI agent platforms. It provides both a Python SDK for agent development and a runtime environment (AgentOS) for serving agents as services, backed by a web based control plane. Agno lives in the Python based AI development ecosystem and targets teams seeking full ownership of their agent infrastructure without vendor lock in.
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Frequently asked questions
Is ponytail or Agno more popular?
ponytail has 141,230 GitHub stars and Agno has 42,219. ponytail has the larger community by that measure.
Are ponytail and Agno free?
Both are open source. ponytail is licensed under MIT and Agno under Apache-2.0. Neither carries a licence fee.
What is the difference between ponytail and Agno?
ponytail is written in JavaScript and Agno 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, ponytail or Agno?
Choose ponytail if you want the larger community (141,230 stars) or its MIT licence terms. Choose Agno if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.