EmailListChecker MCP

An official MCP server provided by EmailListChecker that allows AI agents to verify email addresses for validity, risk, and deliverability. It exposes tools for single and batch verification, cost estimation, and result explanation, integrating directly into agent workflows with credit-based metering and confirm-first safeguards.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-26Operated by EmailListChecker

MCP endpoint (Streamable HTTP)

https://platform.emaillistchecker.io/mcp

Vendor documentation

What you can do with it

Verify single email addresses for validity and risk
Batch verify lists to clean CRM databases
Estimate costs before executing verification tasks
Explain verification results in plain English

Tools advertised by the last live check:

get_api_key
get_credit_balance
list_lists
get_list
explain_result
verify_email
verify_batch
estimate_cost
get_batch_status

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

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

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add emaillistchecker-mcp --url https://platform.emaillistchecker.io/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable emaillistchecker-mcp in your MCP settings.

Cursor configuration

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

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "emaillistchecker-mcp": {
      "type": "streamableHttp",
      "url": "https://platform.emaillistchecker.io/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start emaillistchecker-mcp and inspect its tools.

VS Code configuration

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

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

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

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

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

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

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

Ground your agent in cited data

EmailListChecker MCP gives your agent tools. Koskamo gives it reviewed, cited facts to check its answers against. Add it as a second MCP server; public reads need no API key.

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