Flowproof

Free account

Create your Flowproof account

Your coding agent signs up to your app with throwaway email addresses, checks every email it gets, and deletes the test users when it’s done. You see the results here.

  • Free to start. No card needed.
  • One project and 10 test runs a month, with cleanup after every run.
  • Works in claude.ai, ChatGPT, Claude Code, Cursor, Codex and more.

or use your email

We’ll email you a link to finish. No password to remember.

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Just want a quick look first? Try the free Email Flow Grader, no account needed.