Here’s the straight answer. Want a free SEO AI agent that does keyword research, writes content and optimises it to rank? You can build one for free — using the free Hermes agent, SEO skills, and a free model.
No subscription required. Here’s how to set up a free SEO AI agent that actually works.
Last updated: July 2026.
Key takeaways
- A free SEO AI agent = free Hermes agent + SEO skills + a free model.
- It researches, writes and optimises content on your files — not just chat.
- Run it on free models (Gemma 4, HY3) so it costs nothing.
- Get the ready-made free setup in the AI Profit Boardroom.
What Is a Free SEO AI Agent?
A SEO AI agent is an agent that does the SEO work for you — keyword research, content, on-page and internal links — acting on your files rather than just chatting. The ‘free’ part comes from building it on free tools: the open-source Hermes agent, SEO skills, and a free model as the brain.
How to Build a Free SEO AI Agent
- Install Hermes — a free, open-source AI agent.
- Plug in a free model — Gemma 4 locally, or a free API like HY3.
- Add SEO skills — keyword research, content, on-page workflows.
- Point it at your site and a keyword.
- Review and publish — you stay the editor.
What It Can Do
- Keyword and question research
- Draft optimised content at scale
- On-page and internal-linking passes
- Answer-engine optimisation for AI search
- Run on a schedule, for free
Free Models to Power It
The key to keeping it free is the model. Gemma 4 runs locally for free; HY3 and free-API Gemma cover you if your hardware can’t. See my best free AI model guide and Hermes SEO skills guide.
The Ready-Made Free Setup
You can build it yourself, or get the ready-made free SEO agent setup — Hermes with SEO skills and free models wired in — inside the AI Profit Boardroom. See also my Claude Code SEO agent guide.
New here? Start free with my AI Money Lab community (free AI course + 1,000+ AI agents), or grab a free strategy session.
Free vs Paid SEO AI Agents
| Free setup | Paid tools | |
|---|---|---|
| Cost | Free (open-source + free models) | Monthly subscription |
| Control | Full — you own it | Locked to the vendor |
| Quality | Great with a good model | Varies |
| Best for | Owning your setup | Plug-and-play convenience |
Keep a Human in the Loop
A free SEO AI agent is powerful, but don’t let it publish unchecked at scale — that’s how you end up with thin content instead of rankings. Use it to do the heavy lifting (research, drafts, on-page), then review and add your judgement before publishing. The agent does the work; you own the quality. That balance is what turns a free agent into real rankings.
Scale It on a Schedule
Once your free SEO AI agent works on one page, scale it: give it a queue of keywords and let it run the same process on each, and schedule content refreshes so older pages stay fresh. Because it’s free to run, you can produce and maintain a lot of content without a rising bill — the main limit is how much you can review and keep to a high standard.
FAQ
Is there a free SEO AI agent?
Yes — build one from the free, open-source Hermes agent plus SEO skills and a free model (Gemma 4, HY3). It researches, writes and optimises content at no cost.
How do I build a free SEO AI agent?
Install Hermes, plug in a free model, add SEO skills, point it at your site and a keyword, then review and publish. You stay the editor.
Is it really free?
Yes — Hermes is free and open source, and free models mean no API bill. Your only cost is optional if you choose a premium model.
What can a free SEO AI agent do?
Keyword research, content drafting, on-page optimisation, internal linking and AI-search optimisation — on a schedule if you want.
Where do I get the setup?
Build it yourself, or get the ready-made version in the AI Profit Boardroom.
The Bottom Line
A free SEO AI agent is Hermes + SEO skills + a free model — get the ready-made setup in the AI Profit Boardroom.
