🔌 World Public API Directory
Discover 29 free public APIs across 52 categories
Showing 1–29 of 29 APIs
| API ▲ | Description | Category | Auth | HTTPS | CORS |
|---|---|---|---|---|---|
| Abstract Email Validation | Validate email addresses for deliverability and spam | API Key | ✅ | yes | |
| Academic Email API | This API allows you to verify whether an email belongs to a recognized educational institution | API Key | ✅ | yes | |
| Cloudmersive Validate | Validate email addresses, phone numbers, VAT numbers and domain names | API Key | ✅ | yes | |
| Disify | Validate and detect disposable and temporary email addresses | Open | ✅ | yes | |
| DropMail | GraphQL API for creating and managing ephemeral e-mail inboxes | Open | ✅ | unknown | |
| Emailvalidation | E-Mail address validation | API Key | ✅ | yes | |
| Enveloop | Design, host, and send emails and texts. All from one place - with a simple API | API Key | ✅ | yes | |
| Guerrilla Mail | Disposable temporary Email addresses | Open | ✅ | unknown | |
| Heybounce | Email Verification API | Open | ✅ | yes | |
| ImprovMX | API for free email forwarding service | API Key | ✅ | unknown | |
| IndiePitcher | Everything email for your startup with markdown support | API Key | ✅ | yes | |
| Kickbox | Email verification API | Open | ✅ | yes | |
| mail.gw | 10 Minute Mail | Open | ✅ | yes | |
| mail.tm | Temporary Email Service | Open | ✅ | yes | |
| MailboxValidator | Validate email address to improve deliverability | API Key | ✅ | unknown | |
| MailCheck.ai | Prevent users to sign up with temporary email addresses | Open | ✅ | unknown | |
| Mailtrap | A service for the safe testing of emails sent from the development and staging environments | API Key | ✅ | unknown | |
| NoParam | Email validation API for real-time & bulk checking | API Key | ✅ | unknown | |
| Notilify | A seamless messaging platform & API to send all types of SMS | API Key | ✅ | yes | |
| Proweblook Email Checker | Validate email addresses without sending | API Key | ✅ | yes | |
| Resend | Email API for developers | API Key | ✅ | yes | |
| Sendgrid | A cloud-based SMTP provider that allows you to send emails without having to maintain email servers | API Key | ✅ | unknown | |
| Sendinblue | A service that provides solutions relating to marketing and/or transactional email and/or SMS | API Key | ✅ | unknown | |
| Sweego | Self-serve multichannel notification platform for transactional email, SMS, push web& mobile, chat, in-app | API Key | ✅ | yes | |
| Sweep Emails | Reliable email validation API with Free tier | API Key | ✅ | no | |
| Temporary and Disposable emails API | This API provides temporary & disposable email addresses | API Key | ✅ | yes | |
| Trueguard | Trueguard offers API for detecting temporary emails, free-tier abusers and automated bots | API Key | ✅ | no | |
| Verifier | Verifies that a given email is real | API Key | ✅ | yes | |
| Zyntra | Unlimited e-mail inboxes with API access. Catch OTPs, reset links, and sign-up emails in test flows | API Key | ✅ | unknown |