Best Email APIs

Top pick: Mailgun

Mailgun is the all-in-one, intelligent email delivery platform trusted by businesses and loved by developers.

Why it leads: transparent public pricing, a free tier, self-serve signup, SOC 2 Type II, HIPAA.

Mailgun profile →

Best for…

Best free tier

Mailgun — has a genuine free tier

Most self-serve

Mailgun — lets you sign up and get keys without sales

Strongest compliance

Amazon Simple Email Service — carries the most compliance attestations

Most capabilities

Amazon Simple Email Service — exposes the broadest documented API surface

The shortlist

1. Mailgun

   Mailgun is the all-in-one, intelligent email delivery platform trusted by businesses and loved by developers.

   Strengths: transparent public pricing, a free tier, self-serve signup, SOC 2 Type II.

2. Mailjet

   The best email marketing software that's built for devs and loved by marketers.

   Strengths: transparent public pricing, a free tier, self-serve signup, SOC 2 Type II.

3. Amazon Simple Email Service

   Amazon Simple Email Service (Amazon SES) is a cloud-based email service provider that can integrate into any application for high-volume email automation.

   Strengths: transparent public pricing, self-serve signup, SOC 2 Type II, HIPAA.

4. Brevo

   Brevo is the most intuitive all-in-one customer engagement platform: email and SMS marketing, automation, CRM, live chat, and transactional email.

   Strengths: transparent public pricing, a free tier, self-serve signup, GDPR.

5. SendGrid

   Email at scale, proven deliverability, and so much more

   Strengths: transparent public pricing, self-serve signup, SOC 2 Type II, GDPR.