How Agents Power Lenny's Newsletter

Resend feels like a magical infra layer that I don't need to ever think about once it's up and running.

Lenny's Data gives my subscribers a unique dataset to build with. It includes all of Lenny's Newsletter 350+ posts and 300+ podcast transcripts, in clean markdown, plus an MCP server, and a GitHub repo.

When I started the project, I asked Claude Code what it would recommend for email. When it recommended Resend, I checked out the website (which was super slick) and told it to start building.

Within a few minutes, it finished building the entire magic link auth flow. I provided a Resend API key and a few parameters—that was it! I was able to start sending auth emails within minutes.

Resend is the infrastructure layer that I don't need to ever think about. It's reliable, invisible, and easy to implement for any agent. The auth flow gives me peace of mind, and lets me focus on building the product.

The few times I had questions, the response was super quick. The CEO even jumped on personally to help resolve my questions.

Resend is your magical email infra.

Lenny Rachitsky

Lenny Rachitsky

Founder

How Agents Power Lenny's Newsletter

Lenny's Newsletter

The go-to newsletter for product managers and startup founders.

lennysdata.com

Founded

San Francisco, 2019

Using Resend since

February, 2026

How Agents Power Lenny's Newsletter · Resend