ConvertFleet

MCP docs › Tools › Email Verifier

Email Verifier

email_verify medium Email finding & verification

Verify deliverability of one or many email addresses (syntax, MX, SMTP).

When to use. Checking whether addresses will actually deliver before a send — syntax, MX and live SMTP probe. Run it on any list you scraped or were given.
Not for. Finding addresses (use website_email_find) or only spotting throwaways (use disposable_email_check — it is much cheaper).

Parameters

NameTypeRequiredDefaultDescription
emails string[] yes — Email addresses to verify (max 100).
do_smtp boolean no true Perform live SMTP mailbox checks.

Returns

One row per address with a verdict.

Each row typically carries: email verdict syntax_valid domain mx_found smtp_ok is_catch_all is_disposable is_role score reason

The response body is { status, count, fields, results }. Runs that exceed the inline wait return { status: "running", job_id, tool_flow } instead — see Jobs & errors.

Call it over MCP

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "email_verify",
    "arguments": {
      "emails": [
        "hello@example.com",
        "sales@example.com"
      ],
      "do_smtp": true
    }
  }
}

Call it over the REST API

curl -X POST https://convertfleet.online/api/tool-run \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"tool":"email","params":{"emails":["hello@example.com","sales@example.com"],"do_smtp":true}}'

Both paths run the same job engine, enforce the same plan limits and count against the same monthly quota. See the REST API page.

Related tools

disposable_email_checkFast signup-fraud / list-hygiene screening: is this address or domain a temporary/throwaway mailbox? Cheap and quick.website_email_findTurning a company domain into contact details — crawls the site for public emails, phones and social profiles. The standard enrichment step

JSON Schema

{
  "type": "object",
  "properties": {
    "emails": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Email addresses to verify (max 100)."
    },
    "do_smtp": {
      "type": "boolean",
      "description": "Perform live SMTP mailbox checks.",
      "default": true
    }
  },
  "additionalProperties": false,
  "required": [
    "emails"
  ]
}