What is Tempo Checker used for?

Tempo Checker is an API that tells you whether an email address uses a disposable domain, so SaaS teams can block fake signups and trial abuse. It is a good fit for blocking fake accounts at signup, preventing repeated free-trial abuse, and keeping user and lead data clean.

How much does Tempo Checker cost?

Tempo Checker is a paid product with no free plan. A free trial is available. A 7-day free trial is available on every plan (card required). Starter costs $9.99 a month for 750 calls, Growth $14.99 for 2,000 and Scale $24.99 for 6,000.

Is Tempo Checker open source?

No. Tempo Checker is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include Hoppscotch, Insomnia and Scalar.

What are some alternatives to Tempo Checker?

Tempo Checker competes with ZeroBounce, NeverBounce and BillionVerify.

Tempo Checker: features, pricing and alternatives

About Tempo Checker

Tempo Checker is a detection API for disposable and temporary email domains. Your signup or trial form sends a request with the submitted address, and the service answers with the domain, a verdict, a confidence score, a reason and a recommended action such as block.

The vendor argues that static blocklists go stale because new throwaway domains appear constantly, so it uses layers: a lookup against known disposable providers, DNS and MX validation of the domain, and an automated scraper that finds new domains. The detection data is described as updating in real time, with response times under 50 milliseconds.

Developers choose the outcome in their own flow: block known disposable addresses, show a soft warning for suspicious ones, or approve real users right away. The product targets SaaS teams protecting signup and trial flows, comes with developer documentation, and offers a 7-day free trial.

Key features

Single POST request to check an email
Verdict, confidence and recommended action
Domain list matching for known providers
DNS and MX record validation
Continuously discovered new disposable domains
Developer documentation and API reference

Good fit for

Blocking fake accounts at signup
Preventing repeated free-trial abuse
Keeping user and lead data clean

Tags: email-validation; disposable-email; api; fraud-prevention; signup; developer-tools

Tempo Checker: questions and answers

What is Tempo Checker used for?: Tempo Checker is an API that tells you whether an email address uses a disposable domain, so SaaS teams can block fake signups and trial abuse. It is a good fit for blocking fake accounts at signup, preventing repeated free-trial abuse, and keeping user and lead data clean.
How much does Tempo Checker cost?: Tempo Checker is a paid product with no free plan. A free trial is available. A 7-day free trial is available on every plan (card required). Starter costs $9.99 a month for 750 calls, Growth $14.99 for 2,000 and Scale $24.99 for 6,000.
Is Tempo Checker open source?: No. Tempo Checker is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include Hoppscotch, Insomnia and Scalar.
What are some alternatives to Tempo Checker?: Tempo Checker competes with ZeroBounce, NeverBounce and BillionVerify.