DisposableCheck – Disposable Email Check
Free Disposable Email Detector & API
FreeAPI1,635 impressions#20 of its week
DisposableCheck provides a free API to detect disposable and temporary email addresses.
- for
- Developers building SaaS, sign-up flows, or AI agents that need email validation.
- pricing
- free
Key features
- Domain blocklist — Matches email domains against a continuously updated list of 120,000+ known disposable providers.
- Deep verification — Optionally performs live MX record lookup and SMTP handshake to confirm mailbox existence.
- Free public API — Up to 1,000 requests per day without a credit card.
- REST endpoint — Simple GET /api/v1/check that works with any HTTP client.
- MCP endpoint — Machine-compatible protocol for AI agents to query email validity.
- Language agnostic — Supports JavaScript, Python, cURL and any HTTP client.
Use cases
- Block disposable sign-ups before they reach your database.
- Validate user emails in a landing-page form to reduce spam.
- Enable AI agents to check email legitimacy during workflows.
- Perform MX/SMPT verification for higher-confidence email lists.
DisposableCheck – Disposable Email Check vs alternatives
| DisposableCheck – Disposable Email Check |  Mailgun |  Twilio | |
|---|---|---|---|
| Best for | Instant disposable email detection | Email sending API | Multi-channel verification |
| Pricing | Free | Subscription | Subscription |
| DevHunt upvotes | 0 | 0 | 0 |
| Launched | Apr 2026 | — | — |
- DisposableCheck – Disposable Email Check vs Mailgun: Provides email sending and tracking, not disposable email detection.
- DisposableCheck – Disposable Email Check vs Twilio: Offers verification SMS/voice/email but not a dedicated disposable email blocklist.
DisposableCheck – Disposable Email Check FAQ
What is a disposable email address?+
A temporary inbox on a throwaway domain used to avoid giving a real address and often to bypass sign-up requirements.
How does DisposableCheck detect disposable emails?+
It checks the domain against a blocklist of 120,000+ disposable domains and can optionally verify MX records and SMTP connectivity.
Is DisposableCheck free to use?+
Yes, the web tool is free with no account, and the API is free up to 1,000 requests per day.
What is deep email verification (MX & SMTP check)?+
It queries DNS for MX records and performs an SMTP handshake to confirm the mailbox exists, adding 1–3 seconds latency.
Can I use DisposableCheck in my application?+
Yes, via a REST API or MCP endpoint; the API works with JavaScript, Python, cURL, or any HTTP client.
Summarized by DevHunt from disposablecheck.irensaltali.com · Oct 6, 2026. Details may change; check the official site.
