Open source · AI-native

Email marketing you can set up with a single prompt

Onboarding sequences, re-engagement campaigns, A/B tests—describe what you want and your AI coding assistant builds it. Open source, self-hosted, fully yours.

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Created sequences/onboarding.ts

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Created emails/upgrade-nudge.tsx

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The right email, at the right moment

Automated sequences that respond to what your users do. Describe the behavior you want, and SendPipe handles the rest.

User signs up

Send a welcome sequence

Introduce your product, share tips, and guide new users to their first win.

Trial is expiring

Nudge to upgrade

Remind users what they’ll lose and make the upgrade decision easy.

User goes quiet

Re-engage automatically

Bring back inactive users with targeted content based on what they used.

Subscription cancelled

Win them back

Send a thoughtful offboarding email and offer a path to return.

From idea to inbox in minutes

No drag-and-drop builders. No complex UI to learn. Just describe what you need.

Describe your campaign

Tell your AI assistant what you want in plain language. Onboarding drip, win-back flow, A/B test—anything.

AI builds it for you

Your coding assistant writes the sequences and email templates. Everything lives in your repo, versioned and reviewable.

Deploy and measure

Push to deploy. SendPipe sends the emails and tracks opens, clicks, and conversions. Iterate anytime with another prompt.

A continuous improvement loop

Describe, deploy, measure, optimize. Your AI agent keeps improving your campaigns automatically.

You describe

what to send

AI writes

sequences & templates

Engine sends

emails via Resend

Results return

opens, clicks, bounces

AI optimizes

reads stats, iterates

Cycle repeats — campaigns get better over time

Everything you need to run email

A complete email marketing platform without the complexity.

AI-native by design

Built for Claude Code, Cursor, and any AI coding tool. Describe what you want in plain English and your assistant does the rest.

A/B testing built in

Test subject lines, templates, or entire sequence branches. See per-variant open and click rates with statistical significance.

Open source, fully yours

No vendor lock-in. Fork it, extend it, self-host it. You own the code, the data, and the infrastructure.

Versioned with git

Every change to a campaign is a commit. Roll back mistakes, review changes in PRs, and keep a complete history.

One API to trigger everything

Send an event, and SendPipe matches it to the right sequence. Onboarding, re-engagement, transactional—one endpoint handles it all.

Deploy anywhere

It’s a Next.js app with Postgres. Deploy to Vercel, Railway, Fly, or your own server. Works with Resend for delivery.

Up and running in minutes

Clone the template, set your API keys, and start sending.

# Clone & set up

$ gh repo create my-emails --template elie222/sendpipe

$ pnpm install

# Configure & run

$ cp .env.example .env # add RESEND_API_KEY

$ pnpm dev

Ready to simplify your email?

Open source, free forever. Set up your first campaign in minutes.