Janus tech stack
Simulation testing for AI agents
withjanus.com ↗Checked Sep 2026
The stack
On its website: HTTP: app.withjanus.com responds with x-powered-by: Next.js source · Oct 2026 ↗
On its website: DNS: resend._domainkey.withjanus.com TXT (record present); DNS: send.withjanus.com MX feedback-smtp.us-east-1.amazonses.com source · Oct 2026 ↗
On its website: DNS: www.withjanus.com CNAME cname.vercel-dns.com; DNS: app.withjanus.com CNAME cname.vercel-dns.com source · Oct 2026 ↗
Its market on Product Hunt
Agent simulation and QA testing
in LLM and AI agent observability · 69 products
4direct competitorsFew rivals
2223242526launched
See all 5 and how crowded it is →Janus next to products in LLM and AI agent observability
- Hosting46% of 26 pick
Vercel — so does Janus - LLM API71% of 14 pick
OpenAI API — not known for Janus - Database54% of 13 pick
Supabase — not known for Janus - Frontend Framework82% of 11 pick
Next.js — so does Janus
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