Email ServicesFreeAPI Gateway (Edge Cache)

Email Verification APIFree REST Service

This API validates email addresses through format checks, MX record lookup, SMTP probing, and catch-all detection. It is designed for AI agents to efficiently assess and filter out invalid email addresses before further processing, without the need for a user dashboard.

Best for:AI copilot apps, automated classification, NLP pipelines, and computer vision workflows.
Direct Public REST Service
Official Documentation
Ctrl + D to bookmark page
Rate Limit
Free (No auth required)
Auth
Gateway (Zero-Setup)
Security & CORS
HTTPS • CORS Enabled
Payload Format
JSON / REST

FreeAPI Smart Gateway Supported (Recommended)

Zero account setup or API key registration needed. Call directly through FreeAPI Smart Edge Gateway with in-memory cache, automatic CORS support, and normalized JSON output.

Query Params

Live Test Console & 3D Assistant

Launch our 3D companion to execute real-time REST JSON queries against this endpoint with zero CORS friction.

Quickstart Code Snippets

Copy-paste ready boilerplate for your tech stack.

Bypass browser CORS restrictions. Protected by in-memory RAM cache and automated circuit breaker.
Get Free API Key →
// Call via FreeAPI Smart Edge Gateway (In-Memory Cache + CORS Guard)
// Endpoint: https://findfreeapi.com/api/v1/gateway/email-verification-api

async function callEmailVerificationAPI() {
  try {
    const response = await fetch("https://findfreeapi.com/api/v1/gateway/email-verification-api", {
      headers: {
        "Accept": "application/json",
        // "x-freeapi-key": "fapi_live_your_api_key" // FreeAPI Gateway Key
      }
    });

    if (!response.ok) {
      throw new Error(`Gateway HTTP error! status: ${response.status}`);
    }

    const data = await response.json();
    console.log("FreeAPI Live Data:", data);
  } catch (error) {
    console.error("FreeAPI Gateway Error:", error);
  }
}

callEmailVerificationAPI();
Running this API inside a bot, microservice, or backend daemon?

Share with Devs & GitHub Badge

Share this public endpoint with your team or embed verified status badge in your README.md.

GitHub README.md Badge (Live SVG):
[![Email Verification API - Free Public API](https://findfreeapi.com/api/badge/email-verification-api?style=flat)](https://findfreeapi.com/en/service/email-verification-api?utm_source=github_badge&utm_medium=readme&utm_campaign=readme_badge)

Key Advantages (Pros)

  • Zero-Auth: No API key or registration required to start querying.
  • Documented Rate Limit: Free (No auth required).
  • HTTPS & CORS Enabled: Can be queried directly from client browsers or server backends.

Considerations & Limits (Cons)

  • Rate Limited: Excessive rapid requests may receive HTTP 429 status.
  • Third-party SLA: Service uptime depends on the upstream provider.

Frequently Asked Questions (FAQ)

Technical and integration answers for Email Verification API.

Yes, Email Verification API is listed as a free endpoint on FreeAPI Directory with an allowance of: Free (No auth required).

GitHub README Verified Badge

Embed this live verified badge in your project or repository.

Preview:Email Verification API FreeAPI Verified Badge
[![Email Verification API - Free Public API](https://findfreeapi.com/api/badge/email-verification-api?style=flat)](https://findfreeapi.com/en/service/email-verification-api?utm_source=github_badge&utm_medium=readme&utm_campaign=readme_badge)
Official Service Provider Ownership: Email Verification API

All data feeds, trademarks, and documentation belong directly to the original API provider. FreeAPI serves purely as a discovery index and documentation reference for developers.

DMCA / Takedown Request
Email Services

SendGrid

Cloud-based email delivery service, marketing campaigns, and transactional APIs

FeaturedAPI KEY100 emails/day
Email Services

Mailgun

Transactional email API for sending, receiving, and tracking inbound emails

FeaturedAPI KEY5000 emails/month
Email Services

Mailchimp

Email marketing campaigns, audience lists, and automation workflows

FeaturedAPI KEY500 subscribers/month
Email Services

Amazon SES

Amazon Simple Email Service: scalable, cost-effective outbound email delivery

FeaturedAPI KEY200 emails/day