com.signupbouncer/checker

up checked 2026-11-11T07:38:28.536Z

Unclaimed · Unverified

Publisher-provided title

SignupBouncer

Publisher-provided description

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

Summary by lookupd

Checks signup email addresses and IPs for disposable domains and repeat accounts, and explains the reason codes behind each verdict.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http checker https://signupbouncer.com/mcp

Codex, remote (streamable-http)

codex mcp add checker --url https://signupbouncer.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "checker": {
      "url": "https://signupbouncer.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

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" (allow, challenge o
explain_reason Explains a SignupBouncer reason code (for example disposable_domain, burner_mx, repeat_inbox, datacenter_ip): what it means, how many points it adds or whether
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 relay service or a fr
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 hook, no code), fetch

Shows this live status and links here; updates hourly.

[![lookupd status](https://lookupd.com/badge/com.signupbouncer/checker.svg)](https://lookupd.com/servers/com.signupbouncer/checker)