Resend
Transactional email that just works. Welcome emails, receipts, notifications - anything that fires automatically. Clean API, excellent deliverability, pay per send. No monthly fee unless you are sending serious volume.
What we like
- ✓First 3,000 emails/month free
- ✓Excellent deliverability - emails land in inbox, not spam
- ✓Clean developer API that Claude can write to directly
- ✓Built by ex-Stripe engineers - reliability is in the DNA
- ✓React Email integration for beautiful templates
Watch out for
- ✕Transactional email only - not built for newsletters or broadcasts
- ✕Requires domain verification and DNS setup upfront
- ✕No visual drag-and-drop editor
Every time someone books a consulting call, joins the Lab, or fills out a form - they get an email. That email comes from Resend.
Inside GHL, transactional emails were bundled into the $1,100/month platform. With Resend, I pay per send. For my volume, that is under $5/month. Same deliverability. Better API. No lock-in.
How Claude Uses It
Claude Code has access to the Resend API credentials. When I need a new email workflow, I describe it to Claude - trigger, recipient logic, content - and Claude writes the script and tests it. I review, approve, and it runs. No email builder. No workflow drag-and-drop. Just a script that does exactly what I need.
AI Avengers Lab
This guide gives you the architecture.
The Lab gives you the working code.
Stop reading about the sovereign stack. Start building it. Lab members get every script, every config file, and weekly live sessions where we ship new integrations together.
- Full working code: DuckDB CRM schema, Mailgun wrapper, Claude Code config
- Weekly live builds — we add new integrations together
- Private community of operators building sovereign AI stacks
- Direct access to Manoj — ask questions, get real answers
Cancel anytime. No contracts.
1-on-1 with Manoj
Want me to look at your specific setup?
Book a 1-hour session. Bring your stack, your tools, your blockers. I tell you exactly what to build first. $197.