head to head · open source
nanobot vs AstrBot
nanobot has 49,734 GitHub stars, 8,706 forks, 775 open issues and last shipped 3 days ago. AstrBot has 45,543 stars, 3,339 forks, 1,516 open issues and last shipped yesterday. nanobot leads on adoption by 9% (49,734 vs 45,543 stars). nanobot is written in Python under MIT; AstrBot is written in Python under AGPL-3.0. nanobot has attracted 18% as many forks as stars, AstrBot 7%. AstrBot was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (chatbot, mcp), 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.
← all 20902 open source comparisons
Side by side
| nanobot | AstrBot | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 46K |
| License | MIT | AGPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-10-31 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 3.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nanobot if
- You weight community size — 50K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick AstrBot if
- You want the AstrBot feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and AstrBot fits your workflow better
About nanobot
English 简体中文 繁體中文 Español Français Bahasa Indonesia 日本語 한국어 Русский Tiếng Việt Discord · X · WeChat / Feishu nanobot 🐈 nanobot is an ultra lightweight, open source, self hosted personal AI agent framework written in Python. It runs in a WebUI, terminal, or chat apps and combines tools, long term memory, MCP integrations, model routing, multi agent delegation, scheduled automation, and an OpenAI compatible API in a small, readable core. Start Here What can nanobot do? nanobot is a self hosted personal AI agent runtime. It can: run in a browser WebUI or terminal connect to Telegram, Discord, Slack, WeChat, Email…
read the full nanobot overview →
About AstrBot
简体中文 ｜ 繁體中文 ｜ 日本語 ｜ Français ｜ Español ｜ Русский Documentation ｜ Blog ｜ Roadmap ｜ Issue Tracker ｜ Email Support AstrBot is an open source all in one Agent chatbot platform that integrates with mainstream instant messaging apps. It provides reliable and scalable conversational AI infrastructure for individuals, developers, and teams. Whether you're building a personal AI companion, intelligent customer service, automation assistant, or enterprise knowledge base, AstrBot enables you to quickly build production ready AI applications within your IM platform workflows. Key Features 1. 💯 Free & Open Source. 2. ✨ AI…
read the full AstrBot overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is nanobot or AstrBot more popular?
nanobot has 49,734 GitHub stars and AstrBot has 45,543. nanobot has the larger community by that measure.
Are nanobot and AstrBot free?
Both are open source. nanobot is licensed under MIT and AstrBot under AGPL-3.0. Neither carries a licence fee.
What is the difference between nanobot and AstrBot?
nanobot is written in Python and AstrBot 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, nanobot or AstrBot?
Choose nanobot if you want the larger community (49,734 stars) or its MIT licence terms. Choose AstrBot if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.