Email address validation
30 APIs available
Browse 30 free Email APIs. Find the perfect API for your next project.
Showing 30 of 30 APIs
Check a domain's SPF, DKIM, DMARC and MX with a graded shareable report
Email for AI agents: programmatic inbox creation and send/receive over JMAP
Disposable inboxes for automated email testing, with OTP extraction
Validate email addresses, phone numbers, VAT numbers and domain names
Validate and detect disposable and temporary email addresses
GraphQL API for creating and managing ephemeral e-mail inboxes
Send a test message and get a spam score, 41 checks with RFC citations and a fix plan
Send emails directly from client-side JavaScript without a backend server
Validate email addresses for deliverability and spam
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
Validate email addresses
Disposable temporary Email addresses
API for free email forwarding service
Disposable inboxes for end-to-end tests that wait for the email and extract OTP codes
Email verification API
Free email validation: MX check, disposable detection, syntax
10 Minute Mail
Temporary Email Service
Validate email address to improve deliverability
Prevent users to sign up with temporary email addresses
Email API and SMTP for sending transactional and bulk emails, with email testing sandbox for safe development
EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics
Validate email addresses for deliverability, syntax and disposable detection
A cloud-based SMTP provider that allows you to send emails without having to maintain email servers
A service that provides solutions relating to marketing and/or transactional email and/or SMS
Send transactional email, manage contacts and broadcasts, free 3,000 emails/month
Bulk email verification with full SMTP server responses
Verifies that a given email is real
Temp email address REST API for privacy, testing, automation with OTP extraction