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Communications APIs.

A communications API handles the message layer around your product — checking that an address is real and deliverable before you send to it, drafting the copy, and standing up throwaway inboxes when you need to test the flow end to end.

Also called an email API, messaging API, deliverability API or notification API7 services in this category

Communications APIs

7 services
CommunicationsData Validation
v2.1.0sync

Advanced Email Verification API

Verify an email address from a single query parameter and get a response with a code and success flag. Built for signup checks and list cleanup.

QQuadlem, LLC
email-verification
CommunicationsData ValidationMarketing
v1.0.0sync

Email Deliverability Score API

Check an email for syntax, MX records, and disposable domains. Returns a score, quality level, and boolean checks to filter bad addresses early.

Dosvak LLCDosvak LLC
email-deliverability-score
CommunicationsData Validation
v1.0.0sync

Email MX Lookup API

Check whether an email domain has valid MX records. Returns the email, domain, has_mx flag, and record list for deliverability and list hygiene.

Dosvak LLCDosvak LLC
check-email-mx
CommunicationsDeveloper Tools
v1.0.0sync

Email Syntax Validator API

Validate an email address by syntax alone and get the local part, domain, and a valid flag. Built for fast format checks before signup.

Dosvak LLCDosvak LLC
validate-email-syntax
CommunicationsSecurity & Privacy
vv1sync

Temporary and Disposable Emails API

Temp mail API for developers: create disposable inboxes that last 10 minutes to permanently, read messages as JSON, and use custom domains. Free tier, no card.

BBoomlify
temporary-and-disposable-emails-api
CommunicationsSmart Generation
v1.0.0job

Generate Thank You E-mail API

Generate a thank-you email from a short brief, with language, length, context, and tone controls. Returns a job ID, status URL, and final copy.

SharpAPISharpAPIVerified
generate-thank-you-email
CommunicationsData ValidationMarketing
v1.0sync

Email Validation API: Check Domains and Block Disposable Emails

The Email Validation API checks whether an email address is worth accepting. It confirms the address is correctly formatted, that its domain is set up to receive email, and, by default, that it doesn't come from a disposable email service. You get back a single true or false. Use it on sign-up forms, contact forms, and newsletter subscriptions to stop typos and throwaway addresses before they reach your database, or run it over imported lead lists to remove addresses that would bounce. Set disposable_checks to false if you want to accept temporary addresses. The check confirms the domain can receive mail, but not that a specific mailbox exists. For a more detailed view of how likely an address is to receive your messages, use the Email Deliverability Score API. You can start on ApyHub's free tier with no card required.

ApyHubApyHubVerifiedHosted on ApyHub
verify-email-validity-and-deliverability
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Which Communications API do you need?

The question you arrived with, and the endpoint that answers it.

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