Verify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk.
Connect Remote server
claude mcp add --transport http email-verifier https://mailvalid.io/mcp/ --header "X-API-Key: <X_API_KEY>"
{
"mcpServers": {
"email-verifier": {
"url": "https://mailvalid.io/mcp/",
"headers": {
"X-API-Key": "<X_API_KEY>"
}
}
}
}
{
"servers": {
"email-verifier": {
"type": "http",
"url": "https://mailvalid.io/mcp/",
"headers": {
"X-API-Key": "<X_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://mailvalid.io/mcp/
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 6 found in our last check
verify_emailVerify a single email's deliverability (syntax, DNS/MX, SMTP mailbox, disposable / role / catch-all detection, confidence score). Costs 1 credit for a billable result (valid/invalid/catch_all/do_not_mail), whether fresh or served from cache. `unknown` results are free. Requires…
submit_bulk_verificationQueue a list of emails for asynchronous verification. Reserves up to N credits (final charge settles on completion). Poll get_bulk_job for status and results. Optionally provide webhook_url for a completion callback. Requires an API key. Returns {job_id, status, total_emails, cr…
get_bulk_jobGet the status, progress, and (when complete) results of a bulk job by its job_id. Requires an API key.
list_bulk_jobsList your recent bulk verification jobs (paginated, newest first). Optionally filter by status. Requires an API key.
cancel_bulk_jobCancel a pending or processing bulk job and release any reserved credits. Requires an API key.
get_credit_balanceReturn your current credit balance and lifetime usage. Requires an API key.
Headers
| Name | Description |
|---|---|
X-API-KeyRequired, secret | Your MailValid API key (starts with mv_live_). Create one at https://mailvalid.io/dashboard/api-keys |
Details
| Endpoint | https://mailvalid.io/mcp/ (Streamable HTTP) |
| First published | 15 Oct 2026 |
| Last updated | 15 Oct 2026 |
| Registry name | io.mailvalid/email-verifier |
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