# Kickbox Open disposable email check

Category: [Data validators](https://free-web-services.com/web-services/web-development/validators/)  
Page: https://free-web-services.com/web-services/web-development/validators/kickbox-open-disposable-email-check.html  
Documentation: https://open.kickbox.com/

Kickbox Open tells you whether an email address or domain belongs to a disposable (throwaway) email service. Sign-up forms use it to block one-off addresses that abuse free trials or spam comment sections. Call GET /v1/disposable/ and get a JSON answer with true or false. Free, no key needed; full email verification is a separate paid Kickbox service.

- API key: Not needed
- Pricing: Free, no key needed; full email verification is a separate paid Kickbox service.
- From the browser: Yes (CORS)
- Formats: JSON
- Interface: REST, HTTP-GET
- Provider: open.kickbox.com
- Last checked: Working on November 1st, 2026

Example request:

```sh
curl 'https://open.kickbox.com/v1/disposable/mailinator.com'
```

The JavaScript works in a web page as well as in Node.js 18 or newer.