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Dev tools · August 20, 2026

Tempo Checker API - Fuck Fake Users

Knockout fake user form your app. Because they ass holes

What it does

Tempo Checker is an API for real-time disposable and temporary email address detection. It uses a static domain blocklist, DNS/MX record analysis, and a weekly AI scraper that checks temp-mail sites directly meaning the blocklist doesn’t go stale like most competitors. For developers who want to stop fake signups without maintaining their own list of domains. There is a free tier, and the paid tiers are based on the volume of calls.

Stop fake signups, prevent trial abuse, and maintain high-quality user data with a detection engine that updates itself in real time — not a stale blocklist. Stale blocklists miss new temp-mail domains. Static lists are outdated the moment they're published — bad actors spin up new domains faster than human curators can track them. High-speed lookup against known disposable providers. Our foundational cache processes millions of established bad domains in milliseconds. Real-time verification of mail server records and domain health. We verify that the domain can actually receive mail right now. Our proprietary agent constantly crawls the web to identify new temporary email services before…from tempo-checker.rami-dev.com

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