For the complete site index, see llms.txt. Docs index: llms-docs.txt. Marketing corpus: llms-full.txt. Docs corpus: llms-full-docs.txt. Prefer markdown URLs where available (append .md).. Product skill: skill.md. Pricing: pricing.md. Docs MCP: /docs/mcp. Site MCP: /mcp.

Transactional Email

Send transactional email in 5 minutes.

Start sending transactional emails with a robust REST API, native SDKs, and reliable SMTP service.

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Free plan: 3,000 emails a month. No credit card.

Developer First

Send email from your favorite framework.

Official SDKs and native libraries for Node.js, Python, Go, PHP, Ruby, Java, .NET, and Elixir.

send.ts

1import Reloop from 'reloop-email';
2
3const reloop = new Reloop(process.env.RELOOP_API_KEY);
4
5await reloop.emails.send({
6  from: 'Acme <onboarding@yourdomain.com>',
7  to: ['maya@northwind.io'],
8  subject: 'Welcome to Acme',
9  html: '<strong>Your workspace is ready.</strong>',
10});

Templates

1/4

Readymade templates to send.

Drop-in responsive templates for OTP verification, password resets, welcome sequences, and workspace invites.

One-Time Passcode

Your verification code

Enter this 6-digit verification code to complete your sign-in to Reloop. This code expires in 10 minutes.

842 190

Valid for 10 minutes · Do not share this code

If you didn't request this code, you can safely ignore this message.

𝕏·GitHub·LinkedIn

If you'd like to report an issue, reach out to Reloop Help.

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AI Native

MCP Server

mcp.sh

1# Connect Claude to Reloop
2claude mcp add reloop \
3  -e RELOOP_API_KEY=rl_xxx \
4  -- npx -y reloop-mcp

Connect Claude Desktop, Cursor, or OpenClaw directly to Reloop. Auto-discovered tools for send, status & logs with zero glue code.

Explore MCP Server

Developer CLI

send.sh

1# Send transactional email
2reloop emails send \
3  --to user@example.com \
4  --json

Deterministic CLI for humans and agents. Built with machine-readable JSON output, stdin piping, and live webhook streaming.

CLI Reference

Agent Skills

skills.sh

1# Install CLI agent skill
2npx skills add \
3  reloop/reloop-skills \
4  --global

Equip Cursor, Claude Code, and autonomous agents with domain knowledge on Reloop templates, batching, and deliverability.

Install Agent Skills

Integrations

Connect easily with any service.

No extra setup — plug Reloop into the mailer or platform you already use.

Explore all integrations

n8n

Use Cases

Built for every critical email.

Auth & OTP codes

Deliver time-critical one-time passwords and verification links in sub-seconds.

Passwordless login

Instant authentication magic links that reliably land in the primary inbox.

Security notifications

Immediate alerts for new logins, password updates, and 2FA credential changes.

Billing & invoices

Payment confirmations, subscription renewal receipts, and automated PDF delivery.

Welcome onboarding

Trigger automated welcome sequences the moment a user creates an account.

Team invitations

Collaborative organization invites with customized permission rules and expiry rules.

System & cron alerts

Real-time developer alerts for pipeline anomalies, quota limits, and webhook events.

Activity digests

Scheduled daily and weekly summaries of product engagement and team activity.

Inbound email routing

Receive incoming replies directly into your app and trigger automated webhooks.

Account lifecycle

Data export downloads, compliance requests, and organization updates.

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$0 / mo.

No credit card required. 3,000 emails for free.

Get started View pricing