Dev.to
7/8/2026

Validate API adds disposable-email detection and postal-code validation
Original: Validate API changelog: disposable-email detection and postal-code validation
Short summary
Validate API shipped two new format-only endpoints: disposable-email detection (flags 80+ temp-mail providers and subdomains) and postal-code validation for 50+ countries. Both are live on the existing free tier and follow the same checksum-style pattern as their IBAN/VAT endpoints. The author invites feedback on additional validation checks to build next.
- •New POST /v1/validate/disposable-email endpoint flags 80+ temp-mail providers including subdomains
- •New POST /v1/validate/postal-code endpoint validates format for 50+ countries
- •Both endpoints are live now on the free tier with no external service calls
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