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SignupBouncer

MCP serverVerified domain · signupbouncer.comRemote● LiveFree to try

An API that checks new signups for disposable emails and repeat accounts.

Install

Remote server: your requests and data go to signupbouncer.com. Claude Code: claude mcp add --transport http signupbouncer https://signupbouncer.com/mcp · Claude app: Settings → Connectors → Add custom connector.

What it can do

The tools this server listed when we connected to it, in its own words.

  • check_email — Checks one email address, and optionally the signup's IP address, the way SignupBouncer checks a new signup. Returns the result as "verdict"
  • explain_reason — Explains a SignupBouncer reason code (for example disposable_domain, burner_mx, repeat_inbox, datacenter_ip): what it means, how many points
  • lookup_burner_domain — Says whether a domain is on SignupBouncer's disposable (burner) email list, only on an old burner list (a challenge, not a block), a known r
  • integration_guide — Returns the steps and the copy-paste code that checks new signups with SignupBouncer in one stack: supabase (a hook, no code), ory (a web ho

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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