Qualisend Email Verification
mcp remote · streamable-http · v1.0.0 · source: crawl
https://app.qualisend.com/api/mcp
Verify email addresses and clean lists to improve deliverability and sender reputation.
Works
100
Verified Oct 31, 2026 · p50 775 ms · p95 788 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'Qualisend' |
| tools_listed | 15 | pass | 12 tools |
| schema_complete | 15 | pass | 12 of 12 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 775 ms |
| latency_p95 | 5 | pass | p95 788 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (12)
| Name | Description | Schema |
|---|---|---|
get_verification | Look up the status and result of a verification you started, by job_id (returned from verify_email/verify_emails). For a single check it returns the final verdict once the mailbox probe completes; for | typed |
verify_email | Verify a single email address - syntax, domain/MX, disposable + role detection, typo suggestion, and mailbox reachability. Returns a deliverability verdict (deliverable / risky / undeliverable / unkno | typed |
verify_emails | Verify up to 50 email addresses at once and get a deliverability verdict for each, synchronously. Consumes 1 credit per address. For larger lists (up to 1000), use verify_list. | typed |
verify_list | Verify a large list of up to 1000 email addresses. This runs ASYNCHRONOUSLY: it creates ONE bulk job, returns a job_id immediately, and the mailbox probes run in the background. Poll get_verification | typed |
get_credit_balance | Return the number of verification credits available in your Qualisend workspace. | typed |
check_domain | Check whether a domain is set up to send email that reaches the inbox - its mail servers plus its SPF and DMARC sender-authentication, and what's missing. A plain deliverability health check for a sen | typed |
generate_dns_record | Create the exact DNS setting a domain needs so its email is trusted and harder to spoof - SPF, DMARC, BIMI, or MTA-STS. Returns the record to copy into DNS, with where to put it. No credit used. Avail | typed |
analyze_email_header | Read the hidden technical details of an email (its 'headers') to show the route it took, how long each step took, and whether it passed spam/authentication checks - handy for figuring out why a messag | typed |
check_disposable | Tell whether an email address is a throwaway/temporary one, a generic team inbox (like info@ or support@), or a free consumer address (like gmail) - useful for spotting low-quality sign-ups. No credit | typed |
check_typo | Spot a likely typo in an email's domain (like gmial.com) and suggest the correct one, so you don't lose contacts to misspelled addresses. No credit used. Available on the Qualisend Pro plan. | typed |
lookup_smtp_code | Explain a mail-server reply/error code (like 550 or 5.1.1) in plain English, and say whether it's a temporary hiccup or a permanent failure. No credit used. Available on the Qualisend Pro plan. | typed |
check_blacklist | Check whether a sending domain or IP is currently on any of the major email blacklists that can push your mail to spam - a point-in-time reputation check across lists like Spamhaus, SpamCop, and Barra | typed |
Badge
Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/com-qualisend-email-verification)
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