About · Est. 2026
A control plane for agents hitting auth walls.
AgentSIM is the control plane for agents hitting the real world's auth walls. SMS OTP is the first challenge type.
Inbound · OTP
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Built for
- Auth flows you own
- CI / QA + browser agents
- Verified-compatible targets
Not for
- Stripe · Google · WhatsApp
- Bulk creation or evasion
- A permanent identity
Designed, built, and run by one person.
- Operator
- Fathin · founder & sole engineer
- Signal
- @FathinDev ↗
- Contact
- contact@agentsim.dev