Email Validator API

Overview

To use Email Validator, you need an API key. You can get one by creating a free account and visiting your dashboard.

GET Endpoint

https://api.apiverve.com/v1/emailvalidator

Example

How to call the Email Validator API in different programming languages.

curl -X GET \
  "https://api.apiverve.com/v1/emailvalidator?email=support%40myspace.com" \
  -H "X-API-Key: your_api_key_here"

const response = await fetch('https://api.apiverve.com/v1/emailvalidator?email=support%40myspace.com', {
  method: 'GET',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();
console.log(data);

import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

response = requests.get('https://api.apiverve.com/v1/emailvalidator?email=support%40myspace.com', headers=headers)

data = response.json()
print(data)

package main

import (
    "fmt"
    "io"
    "net/http"

)

func main() {
    req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/emailvalidator?email=support%40myspace.com", nil)

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

{
  "status": "ok",
  "error": null,
  "data": {
    "creationDate": null,
    "domain": "myspace.com",
    "email": "[email protected]",
    "username": "support",
    "canConnect": true,
    "hasTypo": false,
    "isValid": true,
    "isMxValid": true,
    "isSmtpValid": true,
    "isRegexValid": true,
    "smtp": {
      "valid": true,
      "reason": "Connected"
    },
    "isCompanyEmail": true,
    "isFreeEmail": false,
    "checksum": 797
  }
}

Authentication

The Email Validator API requires authentication via API key. Include your API key in the request header:

X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Email Validator API directly in your browser with live requests and responses.

Parameters

The following parameters are available for the Email Validator API:

Response

The Email Validator API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <creationDate xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
    <domain>myspace.com</domain>
    <email>[email protected]</email>
    <username>support</username>
    <canConnect>true</canConnect>
    <hasTypo>false</hasTypo>
    <isValid>true</isValid>
    <isMxValid>true</isMxValid>
    <isSmtpValid>true</isSmtpValid>
    <isRegexValid>true</isRegexValid>
    <smtp>
      <valid>true</valid>
      <reason>Connected</reason>
    </smtp>
    <isCompanyEmail>true</isCompanyEmail>
    <isFreeEmail>false</isFreeEmail>
    <checksum>797</checksum>
  </data>
</response>

status: ok
error: null
data:
  creationDate: null
  domain: myspace.com
  email: [email protected]
  username: support
  canConnect: true
  hasTypo: false
  isValid: true
  isMxValid: true
  isSmtpValid: true
  isRegexValid: true
  smtp:
    valid: true
    reason: Connected
  isCompanyEmail: true
  isFreeEmail: false
  checksum: 797

Response Structure

All API responses follow a consistent structure with the following fields:

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access Email Validator through GraphQL to combine it with other API calls in a single request. Query only the email validator data you need with precise field selection, and orchestrate complex data fetching workflows.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

POST https://api.apiverve.com/v1/graphql

query {
  emailvalidator(
    input: {
      email: "[email protected]"
    }
  ) {
    creationDate
    domain
    email
    username
    canConnect
    hasTypo
    isValid
    isMxValid
    isSmtpValid
    isRegexValid
    smtp {
      valid
      reason
    }
    isCompanyEmail
    isFreeEmail
    checksum
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The Email Validator API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

Email Validator requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The Email Validator API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for Email Validator

Official Email Validator packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

JitPack

No-Code Integrations

Email Validator works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Zapier

Make

Pipedream

n8n

Power Automate

Frequently Asked Questions

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