Mailstorm Docs

Email API for LATAM developers. Drop-in compatible with Resend. Half the price. Bill in pesos. Below — pick the language you ship in and you'll have a verified send in five minutes.

Quickstart

SDK

TypeScript / Node.js

Drop-in @mailstorm/resend or native @mailstorm/sdk.

SDK

Python

Same API as Resend's Python SDK. pip install and go.

SDK

Go

Native Go client. go get + Mailstorm.Send().

HTTP

curl

No SDK needed. POST + Bearer token.

Framework

Next.js

Server Actions and API routes for Next.js 14+.

★

Coming from Resend?

Change one import, keep your code. Migration in 5 minutes.

Core concepts

Webhooks

email.delivered, email.bounced, email.complained, open, click, inbound. Same event names as Resend.

API Reference

OpenAPI 3.0 spec, every endpoint, every shape. Try-it-out enabled.

Common operations

Send a single email

typescript

import { Resend } from "@mailstorm/resend";

const resend = new Resend(process.env.MAILSTORM_API_KEY);

const { data, error } = await resend.emails.send({
  from: "hola@yourdomain.com",
  to: "user@example.com",
  subject: "Welcome",
  html: "<p>Hi</p>",
});

Verify a domain

Add your domain in the dashboard at /domains. Mailstorm generates DKIM/SPF/DMARC records; paste them in your DNS host. Verification is automatic — typically green within 5 minutes.

Receive emails (inbound)

Point your MX record at mail1.mailstorm.dev. Mailstorm parses incoming mail, classifies it (category, urgency, language), and POSTs to your webhook. See Webhooks.

Migrate from Resend

One import swap. Same SDK shape, same webhooks, same response envelopes. See Migrate from Resend.

Stuck? Email support@mailstorm.dev — we respond within 24 business hours (LATAM time zone). Public source code at github.com/mailstorm.