Have I Been Pwned
Partner, reviewedCheck email addresses and domains for data breaches
A connector: add it in the Claude app under Settings, Connectors; Claude Code signed in to the same account can use it too. There is nothing to install from a terminal.
Search email addresses and domains against the world's most widely used data breach corpus. Have I Been Pwned helps individuals determine whether their accounts have appeared in known breaches and enables organisations to investigate exposure across verified domains. Explore detailed breach information, identify exposed data types, review paste and stealer log exposure, and gain trusted security intelligence to better understand account compromise and cyber risk.
From Anthropic's public plugin directory, read on 2026-10-15. Find a skill by task.