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Emailit

Email API for developers and Email Newsletter tool for marketers.

Marketing · Founded 2021 · Czechia

Marketing
Dev Tools
SaaS

Visit emailit.com ↗Founder interest ↓

Can you vibecode this?

Yes

Customers pay per email sent through a developer API and marketer newsletter tool, with no subscription required.

Build This with Leapd →

The business

Total revenue

$30K+

Verified recently

Monthly revenue

$1K+/mo

↑ Growing · 60-day average

Peak month

~$3K

Best single month

Growth

−10%

Early months vs recent

Profit margin

90%

For owners

Own Emailit? List it for sale.

Founders read this page looking for a business to build like your $1K+/mo one — some would rather buy one that already works. They skip the line, you get a clean exit. $25 one-time, no commission.

Why it works

Value proposition
Sends transactional and marketing emails fast, with no monthly subscription.
Problem
Most email APIs lock customers into expensive monthly plans.
Audience
Developers and marketers who send transactional or newsletter emails.
Business model
Pay-as-you-go at $1 per 10,000 emails, charged through Stripe with no subscription.

Good to knowNo credit card requiredNo subscriptionDiscord communityFluentSMTPSupabaseWordPress

Can you vibecode this?

Yes

The whole product, with AI coding tools and public APIs.

Moat

Brand & trust
Switching costs

Why people pay Emailit

Emailit has 2,150+ rated customers and a 1,300-member Discord community built up since 2021. Developers who have configured domains, integrated APIs, and built suppression history into their apps face real friction to move.

Product complexity
Low
A web app with API key management, sending domains, analytics and campaign tools is standard to build.
Data
Low
No external data providers are needed; all data is generated by customer sending activity.
Integrations & infrastructure
Low
SMTP and REST API are standard protocols built into the product, not third-party integrations.
Human operations
Moderate
Reliable email delivery infrastructure requires dedicated IP reputation and deliverability management.
Regulation / hardware
Moderate
Email sending must comply with CAN-SPAM, GDPR and suppression list requirements across markets.

Build this business

Use the build specification below with any AI coding tool, or build it directly with Leapd.

Build This with Leapd →

Leapd builds

Email API and newsletter platform with domain management, analytics and campaign tools
Pay-as-you-go email credits billed with Stripe
A landing page

Leapd runs

Cold email outreach to potential customers
Meta ads
LinkedIn and X posts
SEO and AI-search visibility
A daily report of what shipped

Opportunity check

Passes: Proven market: $1K+/mo already paid for it
Passes: Proven model: $1 per 10,000 emails, no subscription, 90% margin
Passes: Proven need: Developers and marketers need affordable email sending
Passes: Buildable: Leapd builds it end to end

build-spec.txt

Build a pay-as-you-go email sending platform sold as an API and newsletter tool for developers and marketers.

Product:
- Accounts with sending domain management, including SPF and DKIM verification guidance
- REST API for sending transactional emails, with API key generation and key management
- SMTP credentials per account for integration with any language or framework
- Newsletter campaign builder for creating and sending marketing emails to subscriber lists
- Email analytics dashboard showing delivery rates, opens, clicks and delivery process events
- Automatic suppression list that removes non-existent and bounced addresses from future sends
- Email logs showing every sent message and its delivery status
- Webhooks for receiving delivery event notifications in real time
- Documentation and API reference covering quickstart guides, SMTP setup and sending examples

Billing:
- Pay-as-you-go email credits charged with Stripe; customers buy credits and pay per 10,000 emails sent, no subscription.