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mcp/harbor
Verified official

SignupBouncer MCP

v1.1.1

com.signupbouncer/checker

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

transport:streamable-http tools:4
Website

Target client

run in your project directory 

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

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

check_email Read-only

check email

explain_reason

explain reason

lookup_burner_domain Read-only

lookup burner domain

integration_guide

integration guide

All 4 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.