Qualisend Email Verification MCP Server

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answering

Qualisend Email Verification is answering right now. Last checked 6 min ago. It exposes 12 tools.

Verify email addresses and clean lists to improve deliverability and sender reputation.

Uptime history 18 days of history

18 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

219 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Qualisend Email Verification every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add email-verification --transport http https://app.qualisend.com/api/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "email-verification": {
      "url": "https://app.qualisend.com/api/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.email-verification]
url = "https://app.qualisend.com/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "email-verification": {
      "url": "https://app.qualisend.com/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "email-verification": {
      "url": "https://app.qualisend.com/api/mcp"
    }
  }
}

Available tools 12

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

verify

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 / unknown). Consumes 1 credit.

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.

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 with the job_id for progress and a result summary (counts by verdict). Consumes 1 credit per address. For lists larger than 1000, use the Qualisend dashboard or bulk API.

analyze

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 message was slow or went to spam. Paste the message source / 'Show original'. No credit used. Available on the Qualisend Pro plan.

blacklist

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 Barracuda. No credit used. Requires the Qualisend Blacklist Monitoring add-on.

credit

get_credit_balance

Return the number of verification credits available in your Qualisend workspace.

disposable

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 used. Available on the Qualisend Pro plan.

domain

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 sending domain. No credit used. Available on the Qualisend Pro plan.

generate

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. Available on the Qualisend Pro plan.

lookup

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.

typo

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.

verification

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 a batch it returns progress + a result-mix summary.

Endpoints

URL	Transport	State	Latency	Checked
https://app.qualisend.com/api/mcp	streamable-http	answering	209 ms	6 min ago

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Qualisend Email Verification — questions

Answers built from our own checks of this server.

What can Qualisend Email Verification do?

It exposes 12 tools, read directly from the server on our last check. Among them: analyze_email_header, check_blacklist, check_disposable, check_domain, check_typo, generate_dns_record and 6 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Qualisend Email Verification working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 219 ms. The bar chart above shows every period we have measured.

How do I connect Qualisend Email Verification?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Qualisend Email Verification need an API key?

No. Qualisend Email Verification completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 12 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Qualisend Email Verification?

It answers our handshake in 219 ms on average, which is faster than 69% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.