Skip to content
BurnerBlock Docs

BurnerBlock Documentation

Stop Disposable Emails Before They Create Accounts. Protect your SaaS from fake signups, free-trial abuse, and temporary email providers with a single API call.
Get Started

Why BurnerBlock?

Prevent Abuse

Stop disposable email signups and temporary email abuse in its tracks.

Email Normalization

Automatically normalize Gmail aliases and other common tricks to bypass signups.

MX Validation

Perform deep MX record validation to ensure the email is actually deliverable.

Developer First

Simple API that integrates with any auth provider like Clerk, Supabase, or BetterAuth.

Quick Start Example

Terminal window
curl --location 'https://api.burnerblock.pro/api/v1/verify' \
--header 'x-api-key: your_api_key' \
--header 'Content-Type: application/json' \
--data-raw '{
    "email": "user@temp-mail.com"
}'
{
  "email": "user@temp-mail.com",
  "normalizedEmail": "user@temp-mail.com",
  "riskScore": 95,
  "reasons": ["disposable_provider"],
  "verdict": "block"
}