head to head · open source
ponytail vs a-stock-data
ponytail has 182,779 GitHub stars, 10,094 forks, 270 open issues and last shipped 5 days ago. a-stock-data has 11,416 stars, 2,062 forks, 5 open issues and last shipped 4 days ago. ponytail leads on adoption by 1,501% (182,779 vs 11,416 stars). ponytail is written in JavaScript under MIT; a-stock-data is written in Python under Apache-2.0. ponytail has attracted 6% as many forks as stars, a-stock-data 18%. a-stock-data was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (claude-code), 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 | a-stock-data | |
|---|---|---|
| GitHub stars | ★ 183K | ★ 11K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Python |
| Last push | 2026-10-29 | 2026-10-30 |
| Forks | ⑂ 10K | ⑂ 2.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 183K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick a-stock-data if
- You want the a-stock-data 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 a-stock-data fits your workflow better
About ponytail
Ponytail He says nothing. He writes one line. It works. 54% less code (up to 94%) · 20% cheaper · 27% faster · 100% safe Measured on real Claude Code sessions editing a real open source repo (FastAPI + React), against the same agent with no skill. 54% is the mean across 12 feature tasks (Haiku 4.5, n=4); it reaches 94% where an agent over builds (a date picker) and is near zero where the code is already minimal. ponytail keeps every safety guard while a bare "write one liners" prompt drops one. (The earlier single shot benchmark reported 80 94% as a flat figure; against a fair agentic…
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About a-stock-data
简体中文 English a stock data A 股全栈数据工具包 — 12 层架构 · 60 个端点 · 22 个数据源 · 零鉴权 架构 · 快速开始 · 端点清单 · 使用示例 · FAQ · 更新日志 一个自包含的 Skill 文件，把分散在 22 个数据源里的 A 股原始数据整合成 AI 编程助手直接能用的工具集。你不用再背 mootdx 的 K 线参数、东财的 PDF Referer 头、iwencai 的 X Claw 鉴权——全部封装好了。主源被封还有「备用源速查」可降级。 兼容 Claude Code · Codex · OpenClaw Skill 文件本质是结构化 Markdown + 内嵌 Python，任何支持上下文注入的 AI 编程助手都能用。 架构 十二层之外另附 备用源速查 & 降级策略 ：龙虎榜/资金流/公告备胎，以及沪深官方两融、北交所当前行情与五档备胎。使用范围和真实数据日期见 SKILL.md 对应章节。 快速开始 3 步，2 分钟。 启动 Claude Code，说一句「帮我看看 688017 的估值」，自动激活。 Codex / OpenClaw 用户： 把 SKILL.md 的内容贴入你的系统 prompt 或项目上下文文件即可，内嵌的 Python 代码可直接执行。 60 个端点能力清单 共 55 个主入口、5
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Frequently asked questions
Is ponytail or a-stock-data more popular?
ponytail has 182,779 GitHub stars and a-stock-data has 11,416. ponytail has the larger community by that measure.
Are ponytail and a-stock-data free?
Both are open source. ponytail is licensed under MIT and a-stock-data under Apache-2.0. Neither carries a licence fee.
What is the difference between ponytail and a-stock-data?
ponytail is written in JavaScript and a-stock-data 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 a-stock-data?
Choose ponytail if you want the larger community (182,779 stars) or its MIT licence terms. Choose a-stock-data if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.