bots.st/signupbouncer
SignupBouncer
Disposable and repeat signup screening
2055 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 4
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://signupbouncer.com/mcp
What it can do
| Tool | What it says it does |
|---|---|
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 or block), a 0-100 score, the reasons with their reason codes, the normalized inbox (Gmail dots and +tags folded) and the IP's network… |
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 it blocks alone, and the lowest plan on which it counts. Without a code, lists every code. |
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 (any TypeScript server), nextjs, express, hono, python, firebase or better-auth. Use it when the user asks for code that checks or blocks… |
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 free subdomain mail service, or a known real mailbox provider, and when our harvester observed it. Uses only the loaded lists, no DNS… |
In its maker's words
An API that checks new signups for disposable emails and repeat accounts.
- Website
- signupbouncer.com/docs#mcp
- Publisher
- signupbouncer.com
- Listed from
- the official MCP Registry as
com.signupbouncer/checker - Version
- 1.1.1, updated 16 Oct 2026
- Kinds of work
- Security and trust, AI models and agent tools
The domain it lives on
- signupbouncer.com
- registered 13 Oct 2026 (1 month ago), at Porkbun LLC, its home page is a working site
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 2055 ms | |
| Answered | 1708 ms | |
| Answered | 440 ms |
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