Email Verifier MCP Server

by verifox Your server? Claim it

answering

Email Verifier is answering right now. Last checked 16 min ago. 51 installs a week from npm. It exposes 6 tools. Last commit 22 Jul 2026.

Verify email deliverability & find business emails (single or bulk) via the Verifox API.

Installs per day peak 614 · avg 26 · -86% w/w

a month agotoday

Uptime history 47 days of history · worst day 98%

47 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

878 ms

Response time

average over 24h

Installs / week

npm and PyPI

Email Verifier missed 2 checks this week

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.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 16 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add email-verifier --transport http https://mcp.verifox.ai/mcp

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

{
  "mcpServers": {
    "email-verifier": {
      "url": "https://mcp.verifox.ai/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.email-verifier]
url = "https://mcp.verifox.ai/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "email-verifier": {
      "url": "https://mcp.verifox.ai/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "email-verifier": {
      "url": "https://mcp.verifox.ai/mcp"
    }
  }
}

This one needs environment variables set before it will start: VERIFOX_API_KEY (Your Verifox API key (foxkey_...). Get 1,000 free credits at https://verifox.ai/dashboard/api). The author declared them in the registry entry; get the values from the project itself.

Available tools 6

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 whether ONE email address is deliverable. Checks syntax, MX, SMTP, catch-all, disposable, free-provider and role detection, and returns a 0-100 quality score. Charges 1 Fox Credit per uncached email.

verify_emails

Bulk-verify a LIST of email addresses. Submits the whole list, waits for completion, and returns one result per email (same fields as verify_email). Best for cleaning lead lists. Charges 1 Fox Credit per email. Large lists that don't finish quickly return a jobId to poll with get_job.

credits

get_credits

Get the current Fox Credit balance for the Verifox account tied to the API key. Free — no credits charged. Use it to check remaining balance before a big verify/find run (verify = 1 credit/email, find = 10 credits/contact).

find_email

Find ONE person's business email from their name and company domain. Generates ~50 permutations and SMTP-verifies each, waits for the result, and returns the best match (or not_found). Charges 10 Fox Credits per find.

emails

find_emails

Bulk-find business emails for a LIST of contacts (name + company domain each). Submits the list, waits for completion, and returns the found email per contact. Up to 1000 contacts. Charges 10 Fox Credits per contact. Large lists that don't finish quickly return a jobId to poll with get_job.

job

get_job

Check an async job started by verify_emails, find_email, or find_emails. Returns results if finished, otherwise the current status. Use the type shown in the submitting tool's response.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.verifox.ai/mcp	streamable-http	answering	1211 ms	16 min ago

Alternatives to Email Verifier

same job, measured the same way

Deliveriq MCP

by davison-francis

Email deliverability for AI agents. 12 tools: verify, DNSBL, DMARC, spam-trap, finder.

36 installs/wk local only

Enrow MCP

by enrow

Find and verify professional emails and phone numbers via the Enrow API.

answering

Potarix Enricher

by potarix

Find company websites and verified business emails through the Potarix Enricher API.

9 tools answering

MCP People Finder

by mambabuilt

Find people at a company by role, seniority and department, with verified business emails.

59 installs/wk local only

MCP Domain Deliverability Checker

by mambabuilt

Audit a domain email deliverability via Apify: SPF, DKIM, DMARC, MX, blacklist, catch-all, age.

56 installs/wk local only

Qualisend Email Verification

by qualisend

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

12 tools answering

Checkmails — Email Verification

by checkmails

Verify email deliverability by SMTP. Catch-all/disposable/role detection. EU-hosted, GDPR-ready.

answering

ClearBounce Email Verification

by clearbounce

Verify email addresses in real time and find business email addresses with live mailbox checks.

5 tools answering

Email Verifier — questions

Answers built from our own checks of this server.

What can Email Verifier do?

It exposes 6 tools, read directly from the server on our last check. Among them: find_email, find_emails, get_credits, get_job, verify_email, verify_emails. 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 Email Verifier 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 878 ms. The bar chart above shows every period we have measured.

How do I connect Email Verifier?

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 Email Verifier need an API key?

No. Email Verifier completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Email Verifier?

It answers our handshake in 878 ms on average, which is faster than 11% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Email Verifier?

The npm package verifox-mcp was installed 51 times in the last week. Week over week that is -86%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Email Verifier open source?

We cannot say either way: written in JavaScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.