Emaillistchecker.io Email Verification MCP Server

Install Emaillistchecker.io Email Verification MCP server

claude mcp add --transport http emaillistchecker https://platform.emaillistchecker.io/mcp

{
  "mcpServers": {
    "emaillistchecker": {
      "url": "https://platform.emaillistchecker.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "emaillistchecker": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://platform.emaillistchecker.io/mcp"
      ]
    }
  }
}

{
  "servers": {
    "emaillistchecker": {
      "type": "http",
      "url": "https://platform.emaillistchecker.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "emaillistchecker": {
      "serverUrl": "https://platform.emaillistchecker.io/mcp"
    }
  }
}

Context tax

Connecting this server adds ~872 tokens of tool definitions to every model turn (lean, 9 tools). Measured 2026-10-19 via its hosted endpoint; o200k tokenizer, worst case for clients that load all tools up front. How we measure

Input prices as of 2026-10-06. Excludes your own prompt and output.

Tools (9)

• estimate_cost149 tok

  Estimate the credit cost of a verification before running it, and whether the user can afford it. Provide either a count of emails, a list_id to re-verify, or an operation ('single'/'finder'). Always quote this before proposing anything billable.

• explain_result131 tok

  Explain what a verification status or reason means in plain English, with a send recommendation. Covers valid, invalid, catch-all/accept-all, unknown, greylisted, disposable, role, free, spam-trap, abuse, do-not-mail, no-mx, disabled, and network. Use when a user asks what a result means.

• get_api_key125 tok

  Get your own free API key for this server (no account needed; 25 email verifications per day). Optional: the verification tools already work without a key on a shared trial. Returns the key once — reconnect with 'Authorization: Bearer <api_key>' for your own quota and the list tools.

• verify_batch95 tok

  Verify a batch of email addresses (up to 25 per call with an agent key). Returns per-email verdicts and saves a list. Costs 1 credit per email.

• verify_email65 tok

  Verify the deliverability of a single email address. Returns a verdict (valid, invalid, risky, unknown). Costs 1 credit.

• list_lists61 tok

  List the user's bulk verification lists/jobs, most recent first.

• get_list55 tok

  Get the details of a single bulk verification list by its id.

• get_batch_status46 tok

  Get the progress and status of a bulk verification list/job by id.

• get_credit_balance37 tok

  Get the current credit balance and a short usage summary for the account.

Security signals

92/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules

Freshness

Active — last maintenance signal 10d ago. The newest of the signals below sets the band.

1. Last commit (default branch)

   2026-10-08 · 10d ago · GitHub

2. Latest release

   no data · GitHub

3. Package published

   no data · npm/PyPI

4. Registry entry updated

   2026-10-08 · 10d ago · official registry · v1.0.1

How it compares in Email

Against the most-starred email servers we index. Token cost is per model turn, measured from each server's live tool list.