Transactional Email API
Predictable REST API with typed JSON payloads, idempotency keys, and instant feedback.
Transactional email, newsletters, and clear delivery events in one calm workspace built for modern teams.
Workspace overview
Emails sent
0
Delivery rate
—
Credits
0
No email events yet
Real delivery events appear after your first verified send.

Everything around your email delivery is made transparent: the exact request you sent, the delivery events received, and sensible guardrails from day one.
Predictable REST API with typed JSON payloads, idempotency keys, and instant feedback.
Track accepted, delivered, bounced, and opened states without waiting on delayed logs.
Send broadcast newsletters and announcements to segmented subscriber lists with one-click unsubscribe links.
Built-in DNS checking for SPF, DKIM, and DMARC. Protect your sender domain reputation before sending live traffic.
Scoped environment keys, webhooks, and drop-in SDK integration for Node.js, Python, and Go.
Get up and running with full access to our transactional API and campaign studio. No credit card required.

Go from registration to sending your first verified email in less than 5 minutes.
Add two DNS records (DKIM and SPF). We continuously check your setup and keep the technical details out of your way.
Use scoped keys per environment, so local development and test suites stay completely separate from production sends.
One predictable endpoint, clear responses, and an event log that tells you exactly what happened in real time.
Start free with 100 emails. Scale affordably as your application expands.
Perfect for testing integration and sending initial transactional emails.
For fast-growing products needing reliable volume and newsletters.
Dedicated IPs and enterprise compliance for high-frequency senders.
Learn how to generate scoped API keys, listen to deliverability webhooks, and configure custom DKIM selectors.
Your first 100 emails are completely free! This allowance is provided one-time per eligible organization once your sender domain is verified and your organization review is approved. No credit card is required to begin.
Yes. To ensure maximum deliverability and protect sender reputation, all outgoing emails must originate from a verified domain with valid DNS records.
Yes! CapiMail is engineered to effortlessly handle both low-latency transactional notifications (password resets, order receipts) and bulk audience campaigns.
You can smoothly upgrade to our Growth or Enterprise tier anytime to unlock higher sending quotas and dedicated IP options.
Join modern teams who count on CapiMail for reliable transactional emails and newsletters.