Hercules
Open-source testing agent that turns plain Gherkin steps into end-to-end UI, API, accessibility and security tests.
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About Hercules
Hercules is listed in our coding category and is aimed at builders. Open-source testing agent that turns plain Gherkin steps into end-to-end UI, API, accessibility and security tests. Pricing, as the maker states it: Open source. Maturity: Active. We last checked the official link on 2026-10-18.
Hercules at a glance
- Category: Coding
- Built for: Developers and teams building with AI agents
- Pricing: Open source (as the maker states it)
- Licence: GNU Affero General Public License v3.0 (OSI-approved open source)
- GitHub: test-zeus-ai/testzeus-hercules · 1,192 stars (as of Oct 21, 2026)
- Latest release: 1.0.2, Aug 3, 2026
- Last commit: Oct 14, 2026
- Official site: testzeus.com/hercules
- Listed on AgentScout: Oct 18, 2026
Hercules FAQ
What is Hercules?
Open-source testing agent that turns plain Gherkin steps into end-to-end UI, API, accessibility and security tests.
How much does Hercules cost?
Hercules's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Hercules open source?
Yes. Hercules's GitHub repository is published under the GNU Affero General Public License v3.0, according to the licence file in the repo.
Where can I find Hercules's source code?
On GitHub at test-zeus-ai/testzeus-hercules, which had 1,192 stars as of Oct 21, 2026. The latest release is 1.0.2 (Aug 3, 2026).
What are alternatives to Hercules?
Similar tools include Pi, KaneAI, Roo Code, Cleric, CodeBoarding and GitHub Agentic Workflows (gh-aw).
Facts from our link-checked listing, the GitHub repository and the official site. See something wrong? Suggest an edit.
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