TestZeus (Hercules)
Open-source agentic end-to-end testing framework covering web, API and voice agent testing.
| Category | Evals & Testing |
| Open source | Yes |
| Self-hostable | Yes |
| Pricing model | freemium |
| Pricing notes | Open-source core; commercial platform on top |
| Framework integrations | — |
| Funding / ownership | — |
Pricing/feature source: https://www.speechmatics.com/company/articles-and-news/de-risk-your-voice-agent-11-best-voice-agent-testing-platforms