> /v1/apis/category/email
Free Email APIs[029]
29 free public APIs in the Email category — 8 require no authentication, 29 support HTTPS, 17 have CORS enabled.
Abstract Email Validation
Validate email addresses for deliverability and spam
Academic Email API
This API allows you to verify whether an email belongs to a recognized educational institution
Cloudmersive Validate
Validate email addresses, phone numbers, VAT numbers and domain names
Disify
Validate and detect disposable and temporary email addresses
DropMail
GraphQL API for creating and managing ephemeral e-mail inboxes
Emailvalidation
E-Mail address validation
Enveloop
Design, host, and send emails and texts. All from one place - with a simple API
Guerrilla Mail
Disposable temporary Email addresses
Heybounce
Email Verification API
ImprovMX
API for free email forwarding service
IndiePitcher
Everything email for your startup with markdown support
Kickbox
Email verification API
MailboxValidator
Validate email address to improve deliverability
MailCheck.ai
Prevent users to sign up with temporary email addresses
mail.gw
10 Minute Mail
mail.tm
Temporary Email Service
Mailtrap
A service for the safe testing of emails sent from the development and staging environments
NoParam
Email validation API for real-time & bulk checking
Notilify
A seamless messaging platform & API to send all types of SMS
Proweblook Email Checker
Validate email addresses without sending
Resend
Email API for developers
Sendgrid
A cloud-based SMTP provider that allows you to send emails without having to maintain email servers
Sendinblue
A service that provides solutions relating to marketing and/or transactional email and/or SMS
Sweego
Self-serve multichannel notification platform for transactional email, SMS, push web& mobile, chat, in-app
Sweep Emails
Reliable email validation API with Free tier
Temporary and Disposable emails API
This API provides temporary & disposable email addresses
Trueguard
Trueguard offers API for detecting temporary emails, free-tier abusers and automated bots
Verifier
Verifies that a given email is real
Zyntra
Unlimited e-mail inboxes with API access. Catch OTPs, reset links, and sign-up emails in test flows
// FREQUENTLY ASKED
What are the best free Email APIs?
The directory tracks 29 free public Email APIs. Top picks include Abstract Email Validation, Academic Email API, Cloudmersive Validate, Disify, DropMail — see the full list above, all free to use.
Are there free Email APIs without authentication?
8 of 29 Email APIs require no authentication and can be used immediately without an API key.
Do these APIs support HTTPS?
29 of 29 Email APIs support HTTPS.