Keplars
Transactional & marketing email infrastructure with full delivery visibility, sandbox testing, and seamless scale.
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Description
Transactional & marketing email infrastructure with full delivery visibility, sandbox testing, and seamless scale. Send in under 5 clicks. Free plan available.
About Keplars
What is Keplars?
Keplars is an email infrastructure platform for developers and teams to send, track, and manage transactional and marketing emails.
What Keplars does
The platform provides RESTful APIs, SMTP relays, webhooks, and OAuth email sending for Gmail and Microsoft 365 accounts, along with real-time delivery tracking, visual templates, and sandbox testing.
Who Keplars is for
Software developers, startup engineering teams, and businesses sending authentication messages, product notifications, and subscriber campaigns.
How Keplars works
Users connect through Google Workspace, Microsoft Outlook, or verified custom domains, obtain API or SMTP keys from the dashboard, and send emails with automated DKIM, SPF, and DMARC authentication.
Key features
- Provides RESTful API and SMTP relay credentials for sending transactional and marketing emails.
- Supports OAuth connections for Gmail and Microsoft 365 without manual SMTP relay configurations.
- Delivers real-time tracking for email deliveries, opens, clicks, and bounce events.
- Includes a drag-and-drop template builder and the Enceladas Markdown email editor.
- Offers sandbox testing to verify email formatting and delivery before sending in production.
- Automates DKIM, SPF, and DMARC authentication across custom sending domains.
- Provides customizable webhooks for receiving email delivery and engagement events.
- Hosted across Leaseweb data centers, Amazon Web Services (AWS), and SUMMIT.
Pricing
As listed on keplars.com, checked 19 October 2026. Prices can change; see the site for current terms.
- 7-day free trial available without requiring a credit card.
- Pulse: $1 per month for 5,000 emails per month, 150 emails per hour, 1 email account, and 1 webhook.
- Orbit: $5 per month for 10,000 emails per month, 500 emails per hour, 5 email accounts, and 1 custom domain.
- Launch: $10 per month for 25,000 emails per month, 3,500 emails per hour, 10 email accounts, and 5 custom domains.
- Custom: tailored monthly pricing based on total emails, email accounts, webhooks, team members, and custom domains.
Facts from keplars.com, checked 19 October 2026
- Founded by Debojyoti Singha and Ananya Singha.
- Hosted across Leaseweb data centers, Amazon Web Services (AWS), and SUMMIT.
- Provides RESTful API and SMTP relay credentials for sending emails.
- Offers a 7-day free trial with no credit card required.
Written from Keplars's own website (Homepage, Pricing, About, Docs). The maker can claim this listing to edit it.
Categories
Frequently asked questions
What types of emails can be sent through Keplars?
Keplars supports transactional and marketing emails including OTPs, password resets, onboarding alerts, and subscriber campaigns.
Is DNS setup required to send emails with Keplars?
No. Accounts can connect directly via Google or Microsoft OAuth without DNS configuration, while custom domains can optionally configure DKIM, SPF, and DMARC.
Where is the Keplars infrastructure hosted?
The infrastructure is distributed across Leaseweb data centers, Amazon Web Services (AWS), and SUMMIT.
Does Keplars offer a trial period?
Yes. Keplars provides a 7-day free trial without requiring a credit card.
Who founded Keplars?
Keplars was founded by Debojyoti Singha and Ananya Singha.