Resend CEO explains why coding agents recommend its email API
Original title: Designing for Agents — Zeno Rocha, Resend
In one study Claude Code ranked Resend first in 64 of 102 extractable email recommendations.
A Latent Space podcast with Resend co-founder and CEO Zeno Rocha examines why coding agents recommend Resend over larger email providers. Rocha says an earlier study found Claude Code picked Resend first in 64 of 102 recommendations, while a later study was more competitive and often ranked Postmark first. He also describes React Email, machine-readable pricing, an MCP server that grew past 80 tools, and custom tracking domains meant to limit shared-domain blocklisting.
Unconfirmed: Recommendation counts and customer figures are the guest’s account of studies and internal data, not independently verified here.
- Rocha says Resend had 4.3 million users and 120,000 paying customers when recorded.
- SendGrid was first seven times and appeared 55 times as an alternative.
- Resend’s MCP server grew from about 20 tools or fewer to more than 80.
- Adding .md to the pricing URL gives agents a readable price table.
- Rocha says he found Warner Bros. Discovery in the customer database.
- Vendors
- Resend
- Products
- React Email
- Organizations
- CloudflareWarner Bros. Discovery
- AI models
- Claude Code
From the original article
4 min read at latent.space
Where does answer engine optimization (AEO) end and agent experience begin? Inside Resend, from the docs that help Claude Code pick an email API to the tools it uses to send.
By swyx .ai · latent.space
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.