MailCheck.ai

API

Detect temporary email addresses to secure user sign-ups and reduce spam

Overview

MailCheck.ai is a RESTful API designed to help applications block temporary or disposable email addresses during user onboarding. Its primary endpoint accepts an email address (via GET or POST requests) and returns a JSON response with flags indicating if the address is from a temporary provider, plus domain risk metadata. Use cases include securing sign-up flows, preventing spam registrations, maintaining clean email lists for marketing campaigns, and reducing fraudulent account creation. The API integrates seamlessly with web, mobile, and SaaS applications, offering low-latency responses for real-time checks.

Example Integration (JavaScript)

script.js JS


fetch('https://www.mailcheck.ai/#documentation')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON response format
Real-time temporary email detection
Simple request parameters
Seamless integration with onboarding flows

Frequently Asked Questions

? Is MailCheck.ai free to use?

MailCheck.ai offers a freemium pricing model—basic usage is free with rate limits, while paid plans unlock higher request volumes and advanced features like bulk checks.

? Does it require an API Key?

Yes, an API key is required for authentication across all plans. You can obtain one by signing up on the MailCheck.ai website.

? What is the response format?

The API returns responses in JSON format, providing clear indicators of whether the email is temporary, along with additional domain details like risk level and provider type.

Top Alternatives

TempMailChecker API Search Google

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Tool Info

Pricing Freemium

Category Email

Platform Public API

Pros

⊕ Blocks spam/fraudulent accounts
⊕ Maintains clean user databases
⊕ Easy to integrate into apps
⊕ Low-latency real-time checks
⊕ Freemium model available

Cons

⊖ Rate limits on free tier
⊖ Advanced features require paid subscription
⊖ No XML response support