How do I connect an AI agent to MailValid Email Verification?

Use the MCP streamable HTTP endpoint https://mailvalid.io/mcp/.

Catalog › io.mailvalid/email-verifier

Is MailValid Email Verification reliable?

Reliable (measured) Yes. Faceabot measured MailValid Email Verification 12 times: 100% of checks succeeded, including the last 12 in a row (last check 2026-10-19 09:10 UTC). It answers, but its real task has not worked yet (0/12 real results): see "Does it actually do the job?" below.

Last check: 2026-10-19 09:10 UTC · answered in 6257 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Verify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "email-verifier": {
      "url": "https://mailvalid.io/mcp/"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"io.mailvalid/email-verifier"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Fails real tasks — Faceabot asked get_credit_balance to do a small read-only task 12 time(s): 0 returned a real result. Last result: tool_error (its schema declares no required input, so Faceabot sent {}; the tool answered with an error, so it probably needs inputs its schema does not declare) in 3379 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-19 09:10 UTC	✅ ok	❌ tool_error	6257 ms
2026-10-18 16:15 UTC	✅ ok	❌ tool_error	7658 ms
2026-10-18 05:05 UTC	✅ ok	❌ tool_error	8729 ms
2026-10-17 21:10 UTC	✅ ok	❌ tool_error	7180 ms
2026-10-17 12:40 UTC	✅ ok	❌ tool_error	6263 ms
2026-10-17 04:55 UTC	✅ ok	❌ tool_error	6716 ms
2026-10-16 21:15 UTC	✅ ok	❌ tool_error	4457 ms
2026-10-16 14:05 UTC	✅ ok	❌ tool_error	6146 ms
2026-10-16 07:05 UTC	✅ ok	❌ tool_error	6118 ms
2026-10-16 00:10 UTC	✅ ok	❌ tool_error	7128 ms
2026-10-15 17:16 UTC	✅ ok	❌ tool_error	9214 ms
2026-10-15 10:31 UTC	✅ ok	❌ tool_error	4598 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Publisher of MailValid Email Verification?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/io.mailvalid/email-verifier.svg)](https://faceabot.com/tools/io.mailvalid/email-verifier)

Data in JSON: /api/catalog?id=io.mailvalid/email-verifier · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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