head to head · open source
Hermes Agent vs errbot
Hermes Agent has 259,804 GitHub stars, 57,202 forks, 41,784 open issues and last shipped yesterday. errbot has 3,310 stars, 628 forks, 45 open issues and last shipped 8 days ago. Hermes Agent leads on adoption by 7,749% (259,804 vs 3,310 stars). Hermes Agent is written in Python under MIT; errbot is written in Python under GPL-3.0. Hermes Agent has attracted 22% as many forks as stars, errbot 19%. Hermes Agent was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Hermes Agent | errbot | |
|---|---|---|
| GitHub stars | ★ 260K | ★ 3.3K |
| License | MIT | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-10-26 |
| Forks | ⑂ 57K | ⑂ 628 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Hermes Agent if
- You weight community size — 260K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick errbot if
- You want the errbot feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and errbot fits your workflow better
About Hermes Agent
Hermes Agent ☤ Hermes Agent Hermes Desktop The self improving AI agent built by Nous Research. It's the only agent with a built in learning loop — it creates skills from experience, improves them during use, nudges itself to persist knowledge, searches its own past conversations, and builds a deepening model of who you are across sessions. Run it on a $5 VPS, a GPU cluster, or serverless infrastructure that costs nearly nothing when idle. It's not tied to your laptop — talk to it from Telegram while it works on a cloud VM. Use any model you want — Nous Portal, OpenRouter, OpenAI, your own endpoint, and many…
read the full Hermes Agent overview →
About errbot
.. image:: :target: .. image:: :target: .. image:: :target: :alt: Latest Version .. image:: :target: :alt: License .. image:: :target: :alt: Join the chat at Errbot ====== Errbot is a chatbot. It allows you to start scripts interactively from your chatrooms for any reason: random humour, chatops, starting a build, monitoring commits, triggering alerts... It is written and easily extensible in Python. Errbot is available as open source software and released under the GPL v3 license. Features Chat servers support Built in IRC support Telegram support XMPP support With add ons Slack support (See instructions )…
read the full errbot overview →
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Frequently asked questions
Is Hermes Agent or errbot more popular?
Hermes Agent has 259,804 GitHub stars and errbot has 3,310. Hermes Agent has the larger community by that measure.
Are Hermes Agent and errbot free?
Both are open source. Hermes Agent is licensed under MIT and errbot under GPL-3.0. Neither carries a licence fee.
What is the difference between Hermes Agent and errbot?
Hermes Agent is written in Python and errbot 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, Hermes Agent or errbot?
Choose Hermes Agent if you want the larger community (259,804 stars) or its MIT licence terms. Choose errbot if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.