usecheck

Spec sheet

Product

Usecheck is a real-time email validation API for detecting disposable, temporary, and fake email addresses.Read 7 Oct 2026 · usecheck.sh

Integrations

The homepage provides example integration snippets for cURL, Node.js, Python, and Go.Read 7 Oct 2026 · usecheck.sh

Support

The pricing page lists email support for Starter, priority email for Pro and Business, and dedicated support for Enterprise.Read 7 Oct 2026 · usecheck.sh

Aliases and relays

It detects Firefox Relay, SimpleLogin, DuckDuckGo aliases, and plus-addressing.Read 7 Oct 2026 · usecheck.sh

API endpoints

The API documentation describes endpoints for validating email addresses and domains, and says all endpoints require API key authentication.Read 7 Oct 2026 · usecheck.sh

API response fields

The documented email response includes MX, disposable, public-domain, relay, role-account, alias, spam, domain-age, typo-suggestion, and blocklist fields.Read 7 Oct 2026 · usecheck.sh

Disposable detection

It detects 110K+ throwaway email domains in real time.Read 7 Oct 2026 · usecheck.sh

Latency

The homepage states an average latency of 45ms.Read 7 Oct 2026 · usecheck.sh

MX verification

It verifies whether an email domain can receive mail.Read 7 Oct 2026 · usecheck.sh

Pricing inclusion

The pricing page says every plan includes all features, including MX verification, disposable detection, typo suggestions, role-account detection, public-domain detection, and relay and alias detection.Read 7 Oct 2026 · usecheck.sh

Public domains

It identifies Gmail, Yahoo, Outlook, and 500+ free email providers for B2B filtering.Read 7 Oct 2026 · usecheck.sh

Role accounts

It flags shared inboxes such as info@, admin@, and support@.Read 7 Oct 2026 · usecheck.sh

Typo suggestions

It catches common misspellings such as gmial.com and yaho.com.Read 7 Oct 2026 · usecheck.sh

Plans and prices

Every usecheck plan and price →

Where Specifiction places it

• Email Verification APIs#25 of 317.6