SimpleVerifier is answering right now. Last checked 9 min ago. Last commit 26 Oct 2026.
Verify email addresses with a live SMTP mailbox check, check phone number formats and email domains.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.
claude mcp add simpleverifier --transport http https://simpleverifier.com/api/mcp
https://simpleverifier.com/api/mcp
[mcp_servers.simpleverifier]
url = "https://simpleverifier.com/api/mcp"
{
"mcpServers": {
"simpleverifier": {
"url": "https://simpleverifier.com/api/mcp"
}
}
}
{
"servers": {
"simpleverifier": {
"type": "http",
"url": "https://simpleverifier.com/api/mcp"
}
}
}
This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://simpleverifier.com/api/mcp | streamable-http | sign-in | 845 ms | 9 min ago |
Verify email deliverability with RFC format, MX, SMTP and disposable-domain checks.
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Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR.
Domain email and webmail: set up domains, mailboxes and aliases, and check DNS verification.
Bulk email verification: live SMTP mailbox check, MX, catch-all, disposable and role detection.
Verify email addresses, clean lists and check spamtrap, disposable, spambot and complainer lists.
Answers built from our own checks of this server.