~/CLIRank
APIVerified~150ms avg

Resend API

Developer-first email API with React Email support.

Install
npm install resend

About

Resend is a modern email API built for developers. Send transactional emails, manage domains, handle bounces and complaints, and use React Email for templating. Clean API design with excellent TypeScript support. 500K weekly downloads. The developer-friendly alternative to legacy email providers, with a focus on deliverability and DX.

Tags

resendemailtransactionalreact-email

Score Breakdown

CLI Score Breakdown8/11
✓Official SDK on npm/pip+2
✓Env var authentication (no browser OAuth)+2
✓Works in headless/CI environments+2
✗CLI tool available0
✓JSON response for piping/parsing+1
✓Docs have curl/CLI examples+1
✗Reasonable rate limits for scripted use0
✗Machine-readable pricing (md/JSON/static)0
Quality Score Breakdown
npm weekly downloads500k
GitHub stars800
Days since last release11d
Issue close ratio80%
TypeScript typesYes
Docs qualityexcellent
Breaking changesrare

Performance

Latencyus-east-1 - 2026-03-27
p50
120ms
avg
150ms
p95
380ms

Scores

CLI
8
Quality
8
AuthorResend
Weekly installs500,000
Last updated3/20/2026
View repositoryReport issue

Related

APIVerified~170ms - Moderate
280k/wk

SendGrid API

Email delivery - transactional, marketing, and template management.

CLI
8
Quality
8
npm install @sendgrid/mail
APIVerified~130ms - Moderate
95k/wk

Postmark API

Transactional email with industry-leading deliverability.

CLI
8
Quality
7
npm install postmark
APIVerified~160ms - Moderate
80k/wk

Mailgun API

Email delivery, validation, and routing for developers.

CLI
8
Quality
7
npm install mailgun.js