Bypass VoIP Filters &
Give Your Agents a Voice
A dedicated resource hub for developers and businesses using SecondSim eSIMs to bypass strict API phone verification filters and assign real WhatsApp identities to autonomous AI agents.
Claude AI & Anthropic
Learn how to cleanly bypass Anthropic's "Phone number not supported" VoIP filter when verifying Claude Pro or API accounts, and how to hook your Claude agent into WhatsApp Business.
Read Strategy GuideOpenClaw Agents
Technical guide to giving your OpenClaw agents a professional identity using a real UK eSIM while preserving your personal privacy and primary device number.
Read Strategy GuideOpenAI & ChatGPT
Verify your new OpenAI Developer accounts effortlessly. Prevent API lockouts by utilizing a Tier-1 non-VoIP UK mobile number that OpenAI's fraud filters trust implicitly.
Get VerifiedMeta Llama, CrewAI & AutoGPT
Hook your locally hosted LLMs or automation frameworks straight into WhatsApp Business. Give any autonomous agent a secure communication channel using a SecondSim eSIM profile.
WhatsApp eSIM GuideDeploy Your First AI Agent Identity
Get a non-VoIP UK mobile number instantly. Bypass Anthropic, OpenAI, and Meta's fraud filters—and connect your AI directly into WhatsApp Business today.
Zero contract. Anonymous setup via QR code in 2 minutes.