Pricing

Email API pricing that starts free.

Free covers outbound email for one project. Pro is $10/month for pooled projects, 25k emails, 10 domains, automations, inbound receiving, and attachments.

Start free Calculate usage
FreeOutbound email for one project$0, one domain, no automations or inbound.
ProThe production default$10/mo with 25k emails and usage billing.
CustomManual scale planningFor 50+ domains, 100k+ contacts, or review needs.

Free

One project

Outbound transactional and marketing email for one project.

$0

No usage overage

Best forCopy a key, verify one domain, then send up to 100 emails a day.
3,000emails/mo100/dayafter activation1sending domain1,000active contacts
  • Transactional sends and marketing broadcasts
  • Signed webhooks, suppressions, and 30-day delivery logs
  • 1,000 active marketing contacts
  • No automations, inbound receiving, REST attachments, or overages
Start Free

Pro

Production default

The full email platform for every project in your workspace.

$10 / mo

or $100/yr

Best for$10/month with pooled usage and simple overage.
25,000emails/mo10sending domains10,000active contacts25,000automation runs
  • REST send, batch, templates, SMTP relay, and scheduled email
  • Broadcasts and automations with suppression and opt-out checks before delivery
  • Receiving API, stored bodies, per-recipient events, and signed webhooks
  • $0.35/1k extra emails; $1/domain/mo after 10
Start Pro

Custom

Manual plan

For higher-volume senders, domain-heavy accounts, or sustained manual onboarding scenarios.

Volume pricing

Talk to sales

Best forPlanned with a human when shared limits no longer match your real sender profile.
50+domains100k+contacts500k+emails/moCustomretention
  • Sender review and onboarding for larger accounts
  • Tailored overage and support terms tied to your sender profile
  • Custom retention and escalation support
  • Manual quote with no public price floor
Talk to sales
Pro usage after included amountsRounded in 1,000-unit blocks
Emails25,000 sent or received emails/mo$0.35/1k extra emails
Active contacts10,000 subscribed, unsuppressed audience contacts$1.50/1k active contacts/mo
Automation runs25,000 audience-triggered workflow runs/mo$0.50/1k extra runs
Sending domains10 sending domains included$1/domain/mo after 10

Free has no overages. Pro bills usage only when you pass the included email, contact, automation, or domain amounts.

Estimate monthly usage.

Model sent and received email, active contacts, sending domains, and automation workflow runs. The calculator uses the same 1,000-unit blocks used on monthly invoices.

Estimated monthly bill

Pro

$18.75/mo
Pro base: $10/mo25,000 extra emails, rounded to 25 blocks at $0.35 = $8.7510,000 of 10,000 active contacts included10 of 10 domains included25,000 of 25,000 automation runs included

Modeled usage

50,000 sent or received emails/mo10,000 active contacts10 sending domains25,000 automation workflow runs
50,000
1001M
10,000
10
25,000

Email volume includes transactional sends, broadcasts, automation-step messages, and accepted received messages. Active contacts means subscribed, unsuppressed audience contacts.

Pro estimates use the same rounded billing blocks as month-close invoices: $0.35/1k extra emails, $1.50/1k extra active contacts, $0.50/1k extra automation runs, and $1/domain/month after the first 10 domains.

Common pricing scenarios

Outbound email for one live project and one sending domainFree

Outbound transactional and marketing email, up to 100/day after activation.

25k emails, 10k contacts, 10 domains, and 25k automation runsPro $10

The normal self-serve plan for transactional sends, broadcasts, receiving, suppressions, and logs.

50k email-only estimate with other meters inside included limitsPro $18.75

25k included, then 25 rounded blocks at $0.35 per 1,000 extra emails.

100k email-only estimate with other meters inside included limitsPro $36.25

75k extra emails at the Pro overage rate, before contact, domain, or automation overage.

100k+ contacts, 50+ domains, sender review, or custom retentionCustom

Planned with a human instead of forcing unusual senders through self-serve usage math.

Implementation proof

Check the API behind each plan.

These docs show the routes, limits, and behavior behind the pricing rows.

Send APIREST send, batch, idempotency, templates, scheduled sends, and Pro REST attachments.Sending domainsVerified-domain setup, DNS checks, and the domain limits behind the pricing cards.Receiving APIAPI-based inbound domains, signed email.received webhooks, bodies, and attachment retrieval.BroadcastsAudience sends with unsubscribe and suppression behavior enforced.AutomationsAudience-triggered sequences, monthly run metering, and cron-delivered steps.SuppressionsUnsubscribes, bounces, complaints, and suppression checks across sends.

Email API pricing FAQ

Is there a free email API plan?

Yes. Free includes 3,000 outbound emails per month, one project, one sending domain, and 1,000 active contacts. Real sending starts after activation and domain verification, with a 100-email daily cap.

What is included in the $10 Pro plan?

Pro includes 25,000 emails per month, 10 domains, 10,000 active contacts, and 25,000 automation runs. It also includes 30-day logs, signed webhooks, suppression handling, receiving, and outbound REST attachments.

Can I pay yearly?

Yes. Pro is $10/month or $100/year, which matches the yearly Stripe price for two months free. Custom plans are handled manually with the terms agreed during onboarding.

Does Free include attachments?

No. Outbound REST attachments are on Pro and Custom. Free also excludes automations and inbound receiving.

What happens when I hit a limit?

Free has no overages. Upgrade to Pro when you need higher limits. Pro invoices extra emails, contacts, automation runs, and domains in the documented 1,000-unit blocks.

What counts as an active marketing contact?

A unique subscribed audience contact that is not suppressed. Unsubscribed contacts, suppressed contacts, bounced addresses on the suppression list, and transactional-only recipients do not count toward the active contact meter.

Do automation sends cost twice?

No. On Pro and Custom, a workflow run uses the automation meter and each email uses the email meter. Unsubscribe and suppression checks still apply.

What counts as an email?

One sent recipient is one email, so a send to three recipients counts as three. Each accepted inbound message also counts as one email. Simulator messages do not count against quota.

Send your first test email.

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