MillionVerifier MCP by usefulapi MCP Server

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answering

MillionVerifier MCP by usefulapi is answering right now. Last checked 10 min ago. It exposes 4 tools. Last commit 1 Nov 2026.

Check MillionVerifier credits, verify emails and monitor confirmed bulk verification jobs.

Uptime history 63 hours of history

63 hours agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

191 ms

Response time

average over 24h

Stars

last commit 1 Nov 2026

What changed 6

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 October 2026. No other catalogue keeps this.

31 Oct a tool changed version4 times that day

30 Oct a tool changed version2 times that day

and 4 more, back to 30 October 2026

Nothing serious here today

Today is the operative word: we check MillionVerifier MCP by usefulapi 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 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add millionverifier --transport http https://millionverifier.usefulapi.io/mcp

Settings → Connectors → Add custom connector, then paste this address

https://millionverifier.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.millionverifier]
url = "https://millionverifier.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "millionverifier": {
      "url": "https://millionverifier.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "millionverifier": {
      "type": "http",
      "url": "https://millionverifier.usefulapi.io/mcp"
    }
  }
}

Available tools 4

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

millionverifier

millionverifier_credits

Read remaining MillionVerifier credits without starting verification.

millionverifier_file_info

Read an existing bulk file's verification status, progress and aggregate result counts using its file ID. Includes failed/canceled jobs without starting, stopping or re-verifying anything. Does not download individual email results. Wait between polls.

millionverifier_upload_file

Create and upload a CSV of 1–1,000 emails for bulk verification. Can start a billable job and spend credits; requires confirm:true. Returns a file ID for millionverifier_file_info. Never retries or automatically polls. A timed-out submission may still create a job; check the dashboard before repeating it. Download individual results in MillionVerifier.

millionverifier_verify_email

Verify one email using MillionVerifier's real-time API. Can spend credits and requires confirm:true. The vendor timeout is 10 seconds; this charged GET is never retried. Unknown/catch-all results do not establish deliverability. If the response is lost, check the dashboard before submitting again.

Endpoints

URL	Transport	State	Latency	Checked
https://millionverifier.usefulapi.io/mcp	streamable-http	answering	246 ms	10 min ago

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MillionVerifier MCP by usefulapi — questions

Answers built from our own checks of this server.

What can MillionVerifier MCP by usefulapi do?

It exposes 4 tools, read directly from the server on our last check. Among them: millionverifier_credits, millionverifier_file_info, millionverifier_upload_file, millionverifier_verify_email. 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 MillionVerifier MCP by usefulapi 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 191 ms. The bar chart above shows every period we have measured.

How do I connect MillionVerifier MCP by usefulapi?

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

Does MillionVerifier MCP by usefulapi need an API key?

No. MillionVerifier MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is MillionVerifier MCP by usefulapi?

It answers our handshake in 191 ms on average, which is faster than 73% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is MillionVerifier MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at millionverifier.usefulapi.io, which runs on its operator's own terms.