Beta Claude.ai, Claude Code and Claude Desktop, via MCP

Easy Email Verification for Claude

Connect our MCP server to claude.ai, Claude Code or Claude Desktop and verify email addresses from a normal conversation: one address or up to 50 per call, with the result, the reason and risk signals.

Connect in claude.ai

Prompt: Read https://www.easyemailverification.com/claude.md and help me connect Easy Email Verification to Claude.

Why Easy Email Verification

Real mailbox checks

Syntax, domain, MX and mailbox (SMTP) checks on our servers, plus disposable, role, free provider and catch-all detection.

Honest "unknown"

When a mail server gives no reliable answer, the result is unknown. Claude is told never to count it as valid or invalid.

Works on your files

In Claude Code, verify the email column of a CSV in your project, clean a signup list or check addresses before an import.

Your account, no key

You sign in with your Easy Email Verification account and allow Claude. Each connection has its own key and statistics in API settings.

How it works

Add Easy Email Verification as a connector in claude.ai or Claude Desktop, or as an MCP server in Claude Code, and sign in with your account.

Ask Claude to verify an address, a list or the emails in a file.

Claude asks permission to use the tool (each address uses one credit), then calls verify_email or verify_emails (create_bulk_job for longer lists).

You get a table with valid, invalid or unknown, the reason and whether each address is safe to send to.

Set up

claude.ai: open Settings → Connectors → Add custom connector, enter the URL https://mcp.easyemailverification.com/mcp and click Connect. Sign in to Easy Email Verification with your usual e-mail and password and click Allow. No API key needed; the connection appears in Connected apps, where you can disconnect it.

Claude Desktop: uses the same connectors as claude.ai. Add it in Settings → Connectors the same way, or it is already there if you added it on claude.ai.

Claude Code: add the server, then type /mcp in a session, select eev and choose Authenticate; sign in and click Allow in the browser.

claude mcp add --transport http --scope user eev https://mcp.easyemailverification.com/mcp

Prefer an API key (for scripts or CI)? Use

claude mcp add --transport http --scope user eev https://mcp.easyemailverification.com/mcp --header "X-API-Key: YOUR_API_KEY"

with a key from API settings.

Prefer to be guided? Paste claude.md into Claude and it walks you through the setup.

The MCP server is in beta. With sign-in, each verification uses credits from the account you signed in with, exactly like an API key.

Prompts to try

Verify john.smith@acme.com and tell me if it is safe to send to.

Check these addresses and tell me which ones to remove before my campaign: anna@example.org, sales@example.com, mark@gmial.com

Read contacts.csv, verify the email column and add a column with the result and the reason.

Verify all the addresses in leads.csv with a bulk job. Tell me how many credits it will use before starting, then summarize the results.

Your account and credits

Each verified address uses one credit from the account you signed in with (or that owns the API key), except when the receiving server cannot be reached (reason no_connect). Checking your remaining credits is free.

For lists of thousands of addresses, upload the file with bulk list verification in the dashboard.

Create a free account · Plans and credits

Other ways to use Easy Email Verification with AI

ChatGPT Beta

Add our MCP server as a plugin in ChatGPT developer mode and sign in with your account (no key). Not in the plugin directory yet.

Learn more

MCP server Beta

Single, batch and bulk verification tools for any MCP client: sign in with OAuth, or send an X-API-Key header.

Learn more

AI coding assistants Available

Point Claude Code, Cursor, Copilot or Codex at agents.md and the OpenAPI spec to write a correct integration.

Learn more

Gemini Beta

Add the MCP server to Gemini CLI in settings.json with your API key. The Gemini app (gemini.google.com) is not tested yet.

Learn more

All AI integrations

FAQ

Which Claude apps are supported?

claude.ai and Claude Desktop (custom connector), and Claude Code (terminal and IDE extensions). All of them sign in with your Easy Email Verification account; Claude Code can also use an API key.

Do I need an API key?

No, you sign in instead. An API key is only an option for Claude Code (for example in scripts): put it only in the claude mcp add command, never in a conversation.

How do I disconnect claude.ai?

In the Easy Email Verification dashboard, open Connected apps and click Disconnect, or remove the connector in claude.ai. Its usage is listed in API settings under the key named after the app.

How many addresses can Claude verify at once?

Up to 50 per call with verify_emails. For up to 10,000, Claude can start a bulk job (create_bulk_job) and then read a summary; larger files go through bulk list verification in the dashboard.

Is there a Claude Code plugin?

Not yet. Today you add the MCP server with one command; a plugin is planned.

What does "unknown" mean?

The receiving mail server did not give a reliable answer (for example a timeout or a temporary block). Unknown is neither valid nor invalid; the reason says why.

Verify emails from Claude

Add the connector, sign in, and ask in plain language.

Create a free account Read claude.md