Check location and use your own email
Confirm your actual location is supported and use an email account you control. Follow official signup prompts; do not buy shared accounts or borrow another person’s identity.
Anthropic · Supported locations ↗ · Anthropic · How to get support ↗
Follow the verification requested in signup
If the flow asks for phone or identity verification, use your own information and the options accepted in that flow. This site does not guarantee that a carrier, number type or eSIM will be accepted.
Anthropic · Identity verification ↗ · Anthropic · How to get support ↗
Protect sign-in links and use available security controls
Do not share passwords, sign-in links, session tokens or API keys. Review the security controls offered in your account. If access is lost, use the official help channel rather than giving credentials to a third party.
Frequently asked questions
Does a custom email domain guarantee acceptance?
No. The official signup flow determines acceptance; no email provider guarantees account access.
Should I buy an overseas SIM to guarantee verification?
No. A phone product does not guarantee acceptance or establish supported-location eligibility.