# IsTempMail

IsTempMail is a disposable-email detection API and WordPress plugin for SaaS founders, indie hackers, and AI products that need to block fake signups. It gives you access to a daily-updated database of 130k+ throwaway email domains. The domain database adds 20 to 50 new domains per day.

The API exposes a simple JSON endpoint (`GET /api/check/{name}`) that returns `blocked: true/false` for any email or domain, with an optional `unresolvable: true` flag for domains with no MX records. Plans: Free (200 requests/30 days), Standard $5 (5k), Plus $10 (15k), Pro $20 (50k), Max $50 (unlimited).

## Product
- [IsTempMail homepage](https://www.istempmail.com/): product overview and entry point to signup.
- [Pricing](https://www.istempmail.com/pricing): full tier breakdown from Free (200 req/30 days) to Max ($50/mo, unlimited).
- [Sign up](https://www.istempmail.com/sign-up): account creation and API-key issuance.

## API
- [API documentation](https://www.istempmail.com/docs/api): canonical reference covering the `/check`, `/block`, `/allow`, and `/report` endpoints — request and response shapes, Bearer-token and path-token authentication, error codes, and rolling-30-day rate limits.
- [Sample code](https://www.istempmail.com/docs/api#sample-code): copy-paste integrations for cURL, Node.js, Next.js, Python, Ruby, Go, PHP, Java, C# / .NET, Rust, Cloudflare Workers, Express, and WordPress — replaces the need for a language-specific SDK.
- [API FAQ](https://www.istempmail.com/docs/api#faq): list freshness, fail-open vs fail-closed guidance, bulk checks, what's logged (domain only, never the local part), token rotation, subscription grace period, SLAs, and Zapier/Make usage.

## Integrations
- [Block Temporary Email — WordPress plugin](https://wordpress.org/plugins/block-temporary-email/): official WordPress plugin that blocks disposable email in registration and comment forms; for non-developers.

## Guides
- [How to prevent free trial abuse for SaaS and AI products](https://www.istempmail.com/articles/how-to-prevent-free-trial-abuse-for-saas-ai/): playbook on detection signals, payment friction, and abuse-prevention patterns beyond domain blocking.
- [Best temporary email block lists](https://www.istempmail.com/articles/temporary-email-block-list-top-7/): comparison of seven publicly available disposable-email blocklists and the tradeoffs of static lists versus an API.
- [Disposable email glossary](https://www.istempmail.com/articles/disposable-email-glossary/): canonical definitions for burner email, plus addressing, email aliasing, and related terms.

## Optional
- [Reasons (not) to use temporary email](https://www.istempmail.com/articles/good-reasons-to-use-temporary-email-services-or-not/): balanced editorial on user-side use cases; useful for context, not for product decisions.