Best 6 Send Free Email API Service Providers

When it comes to integrating email functionality into your applications or websites, choosing the right API can make a significant difference. Here, we explore the best six free email APIs that developers can utilize for sending emails.

【AOTsend Email API】：AOTsend is a Managed Email Service for sending transactional emails. Support Email Types: reminders, authentication, confirmations, notifications, verification codes, invoices, password resets, account activations, billing statements, two-factor authentication (2FA), and one-time passwords (OTP) emails, etc. $0.28 per 1000 Emails. 99% Delivery, 98% Inbox Rate.

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1. SendGrid

SendGrid offers a powerful and flexible cloud-based email infrastructure. Its free plan allows you to send up to 100 emails per day, making it ideal for small-scale projects or testing purposes. SendGrid's API is easy to integrate and provides detailed analytics, helping developers track and optimize their email campaigns.

2. Mailgun

Mailgun provides a simple and powerful API for sending, receiving, and tracking emails. With its free plan, you can send up to 10,000 emails per month. Mailgun's API offers advanced features like email validation, tagging, and detailed tracking, making it a great choice for developers who need more than just basic email sending functionality.

3. Mailjet

Mailjet is another popular email service that offers a free plan allowing up to 6,000 emails per month. Its API is user-friendly and provides tools for managing contacts, creating campaigns, and tracking email performance. Mailjet also offers excellent customer support, making it a great option for developers who need assistance integrating the API into their projects.

4. SendinBlue

SendinBlue's email marketing and automation platform come with a free plan that permits up to 300 emails per day. Its API supports transactional emails, SMS, and marketing automation, making it a versatile choice for developers. SendinBlue also provides real-time reporting and analytics to help optimize email campaigns.

5. Mandrill (now Mailchimp Transactional)

Although Mandrill has been discontinued and merged into Mailchimp as Mailchimp Transactional, it still offers a generous free plan. Developers can send up to 12,000 emails per month using its API. Mailchimp Transactional provides powerful tools for managing contacts, designing emails, and tracking results.

6. SparkPost

SparkPost offers a free tier that allows developers to send up to 15,000 emails per month. Its API is known for its reliability and scalability, making it suitable for both small and large projects. SparkPost also provides real-time analytics and detailed reporting features.

In conclusion, there are several great options available for developers looking to integrate email functionality into their projects free of charge. Each of these APIs offers unique features and benefits, so choosing the right one depends on your specific needs. Whether you're looking for simplicity, advanced features, or scalability, there's an API on this list that will suit your requirements.

Remember to consider factors like email volume, features needed, and ease of integration when making your decision. With these free email APIs, developers can easily add email functionality to their applications or websites without breaking the bank.