Transactional

Ship AI apps faster.
Zero infra headaches.

Route AI models, send emails, manage support, handle auth — one SDK, one dashboard. Stop stitching together services. Start shipping.

99.97% UptimeSub-50ms LatencyGDPR Ready

One SDK. Everything.

One call. Every channel.

Email, AI, support, analytics — ship in minutes, not months.

app.ts
import { Transactional } from '@usetransactional/node'
 
const tx = new Transactional('tr_live_...')
 
await tx.emails.send({
from: 'hello@acme.com',
to: 'user@company.com',
templateAlias: 'welcome',
})
EmailSent
Welcome to Acme Corp
to: user@company.com · via SES
AI GatewayStreaming
Generating personalized welcome 
SupportLive
Hi! I see you just signed up. Need help?
AnalyticsReal-time
2,847
events / hr
The Core Ecosystem

Infrastructure you don't build.

TRANSACTIONAL EMAIL

Email that just delivers.

Transactional email with 99.9% deliverability. Templates, webhooks, analytics — one SDK call. Stop managing SMTP servers.

Template Engine

React-based email templates with live preview

Unified Inbox

Track deliveries, opens, and bounces

Sub-150ms Latency

Global edge network for instant delivery

DELIVERABLE
EMAIL_V2
Inbox — 4 messages
Welcome Email
Acme Inc
Delivered2m ago
Verify Account
Acme Inc
Delivered5m ago
Password Reset
Acme Inc
Delivered12m ago
Team Invite
Acme Inc
Queuedjust now
A
Acme Incno-reply@acme.com
DELIVERED
Welcome to AcmeToday at 2:34 PM

Hi there, welcome to Acme! We're excited to have you on board. Your account is all set up and ready to go.

Click the button below to get started with your new dashboard and explore everything we have to offer.

Get Started
99.9%
DELIVERY
<50ms
LATENCY
99.99%
UPTIME
IDENTITY & ACCESS

Auth without the nightmare.

SSO, MFA, passkeys, session management. Drop-in authentication that handles the edge cases you don't want to.

Multi-Factor Auth

TOTP, SMS, and WebAuthn passkeys

SSO Integration

SAML 2.0 and OpenID Connect

User Management

Roles, permissions, and team invites

AUTHENTICATED
AUTH_V2
Priya Sharma
priya@nexastack.io
MFA ENABLED
VERIFIED
4
7
2
8
9
1
PasskeyActive
Active Session
Last login: 2 min ago
SSO
ENABLED
MFA
ACTIVE
OMNI-CHANNEL SUPPORT

Support that runs itself.

Embeddable chat widget, unified inbox, AI-powered auto-responses. Ship support in an afternoon.

Chat Widget

Customizable, lightweight embed

Unified Inbox

All channels in one view

AI Assistance

Smart replies and auto-categorization

ONLINE
CHAT_V2
Support Team
Typically replies in <2 min
AI

Hi! How can I help you today?

12:01

How do I add a custom domain?

12:02
AI

Go to Settings → Domains → Add Domain. I'll walk you through it.

12:02
AI
Type a message...
<100ms
DELIVERY
99.99%
UPTIME
24/7
AVAILABLE
MORE CAPABILITIES

More building blocks. Less glue code.

AI Gateway

One API. Every model.

Route between LLM providers with automatic failover and cost controls. No vendor lock-in, no SDK sprawl.

20+ providersSub-100ms overhead
Observability

Traces, logs, metrics. See every request across every module.

Real-time
Email

99.97% delivery. SMTP + REST. Real-time webhooks.

42ms avg
Support

Chat widget, knowledge base, AI copilot, team inbox.

AI-powered
Memory

Persistent context for AI. Vector store with auto-chunking.

Semantic search
Forms + Calendar + Auth + Messaging

The complete developer toolkit.

Type-safe form builder, booking and scheduling API, drop-in authentication, and multi-channel messaging. Every module works together through a unified SDK.

9 modules, 1 platform
9

Modules. One API key.

Platform Architecture

Nine modules.
One stack. Zero duct tape.

Every layer works together out of the box. No integration weekends. No vendor lock-in.

@
EMAIL
SENT
💬
SMS
2FA
847291
Delivered
98.7%
FORMS
Name
Email
I agree to terms
Submit
📅
CALENDAR
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Events
Team Sync
Demo
🔐
AUTH
SSO
👤
email@example.com
••••••••
Sign In
G
f
in
💬
SUPPORT
Online
Inbox
How can I help?
Need help with API
Type a message...
🌐
DOMAINS
myapp.com
Active
api.myapp.io
Active
DNS Records
A
MX
CNAME
🧠
LLM OPS
Live
Trace Timeline
Tokens
2,458
Cost
$0.04
Models
GPT-460%
Claude30%
Email API
Transactional emails
SMS Gateway
Global messaging
Form Builder
Dynamic forms
Scheduling
Booking system
Authentication
Identity & SSO
Live Chat
Customer support
DNS Manager
Domain control
LLM Ops
AI observability

Built for Scale

Three pillars. One platform.

Communication, AI, and customer experience — each pillar runs on dedicated infrastructure, unified by a single API.

Team collaboration
Communication
Messaging Infrastructure
Email, SMS, and multi-channel messaging — 99.9% deliverability, sub-150ms latency.
Delivery Rate
99.9%
Email + SMS + Pushunified API
Coding workspace
Artificial Intelligence
AI Infrastructure
Route to any model, persist memory, trace every token. One SDK for the entire AI stack.
Trace Waterfall
embed
42ms
llm
890ms
cache
8ms
Gateway + Memory + Observability
Team meeting
Sales & Support
Customer Experience
Live chat, knowledge base, forms, and AI copilot — resolve 89% of queries automatically.
Live Chat
How do I set up DKIM?
Add the TXT record to your DNS settings...
AI typing...

Operational Intelligence

Your whole stack. One dashboard.

AI traces, email metrics, support tickets, auth sessions — everything in one place.

Earth from space
Email Delivery
user@example.comdelivered
dev@startup.iodelivered
ops@deploy.cosending
hi@team.appdelivered
AI Trace Waterfall
embed42ms
llm890ms
tool_call210ms
Support Chat
How do I add a custom domain?
Go to Settings > Domains > Add...
Analytics
Requests
4.8M
Latency
23ms
All systems go
9 modules operational

Ship faster. Sleep better.

Every module, every metric, at a glance.

Platform Modules

Pick what you need. Skip what you don't.

Modular by design. Use one module or all nine.

Auth

SSO, MFA, Sessions

Email

Transactional API

Domains

Registration & DNS

SMS

Global Messaging

Forms

Headless Collection

Support

Live Chat & Tickets

Calendar

Scheduling & Sync

AI Gateway

LLM Proxy & Cache

More modules launching in 2026
INFRASTRUCTURE // SCALE

Built for Global Scale

Our infrastructure is designed to handle mission-critical workloads with the reliability your business demands.

99.9%

Uptime SLA

Enterprise-grade reliability with redundant systems across multiple availability zones.

<150ms

Global Latency

Edge-optimized delivery via points of presence on every continent.

Elastic

Scaling

Horizontally scalable architecture designed for burst traffic and consistent load.

Real-time

Autoscaling

Automatic resource allocation that responds to demand in real-time.

All Systems Operational
Status: Healthy
Updated: Real-time

STOP BUILDING
INFRASTRUCTURE.

START SHIPPING YOUR PRODUCT.

Start Building Free