Kickbox

API

Email verification API for validating and cleaning email lists

Overview

Kickbox is a RESTful email verification API offering endpoints for single email checks (via /verify) and bulk verification. Responses are JSON-formatted, providing data like deliverability status, spam trap detection, syntax validity, and domain existence. Use cases include cleaning email lists to reduce bounce rates, preventing fake sign-ups on platforms, enhancing email campaign performance, and ensuring compliance with anti-spam regulations.

Example Integration (JavaScript)

script.js JS


fetch('https://open.kickbox.com/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON responses
Single email verification
Bulk email verification
Spam trap detection
Syntax & domain validity checks

Frequently Asked Questions

? Is Kickbox free to use?

Yes, Kickbox offers a freemium model with a free tier (limited monthly verifications) and paid plans for higher volume needs.

? Does it require an API Key?

Yes, an API key is required to authenticate requests, available via the Kickbox dashboard after sign-up.

? What is the response format?

All responses are in JSON format, including details like deliverability status, spam trap risk, and syntax validity.

Top Alternatives

ZeroBounce API Search Google

EmailChecker API Search Google

Tool Info

Pricing Freemium

Category Email

Platform Public API

Pros

⊕ Accurate deliverability insights
⊕ Easy integration with apps
⊕ Bulk processing support
⊕ Detailed verification results

Cons

⊖ Rate limits on free tier
⊖ Paid plans required for high volume
⊖ No XML response format