Sub-120ms p50
Edge-routed dispatch with optimal carrier selection per region.
v4.0 — Now with RCS Business Messaging
One API for every
conversation
on Earth.
SMS, WhatsApp, Email, Voice, RCS, delivered through a single, beautifully designed API. Built for teams who care about deliverability, latency, and the small details.
99.99%
Uptime SLA
<120ms
Median latency
190+
Countries
SMS
1.2M/min
WhatsApp
840K/min
Email
3.4M/min
Voice
62K/min
RCS
110K/min
Powering messaging at
Acumen
Vertex
Lumen
Northwind
Quanta
Helix
Aether
Forge
Features
A platform that disappears behind your product.
End-to-end encrypted
TLS 1.3 in flight, AES-256 at rest. SOC 2, HIPAA, GDPR.
Smart fallback
WhatsApp → SMS → Email cascades, defined in one config block.
Live observability
Per-message tracing, cohort analytics, anomaly detection.
Compliance built-in
10DLC, opt-out, DLT, sender registration — handled.
Fraud shield
ML-driven traffic pumping detection. Saves the average customer 14%.
Channels
Five channels. One mental model.
Every channel speaks the same API. Switch with a parameter. Fall back automatically. No SDK juggling.
SMS
Operational
Two-way SMS in 190+ countries with smart routing, sender ID, and built-in compliance.
99.7%
Delivery rate
Your Acumen verification code is 284-019. Do not share this with anyone.
Hi Mira, your order #A82-9920 has shipped. Track: msgd.co/t/9920
Developer Experience
Send your first message in three lines.
One REST endpoint. Idempotent. Predictable. SDKs in Node, Python, Go, Ruby, Java, .NET, PHP. Webhooks signed with HMAC-SHA256.
Ready
https://api.msgdeck.com/v1/messages
// Press Run to send a real test message →
const msg = require('msgdeck');
msg.configure({ apiKey: process.env.MSGDECK_KEY });
await msg.messages.send({
to: '+1 415 555 0142',
channel: 'whatsapp',
fallback: ['sms', 'email'],
template: 'order_shipped',
variables: {
name: 'Mira',
tracking: 'A82-9920'
}
});
import os
import msgdeck
msgdeck.configure(api_key=os.getenv('MSGDECK_KEY'))
msgdeck.messages.send(
to='+1 415 555 0142',
channel='whatsapp',
fallback=['sms', 'email'],
template='order_shipped',
variables={
'name': 'Mira',
'tracking': 'A82-9920'
}
)
curl https://api.msgdeck.com/v1/messages \
-H "Authorization: Bearer $MSGDECK_KEY" \
-H "Content-Type: application/json" \
-d '{
"to": "+1 415 555 0142",
"channel": "whatsapp",
"fallback": ["sms", "email"],
"template": "order_shipped",
"variables": {
"name": "Mira",
"tracking": "A82-9920"
}
}'
Observability
A console that tells you the truth.
Per-message tracing across every channel and carrier hop. No more guessing why a message bounced.
Acumen / Production
Overview
Last 24h
Live
Messages sent
4.82M
+12.4%
Delivery rate
99.7%
+0.3pp
Avg latency
94ms
−18ms
Cost / msg
$0.0042
−9%
Throughput
2,184 msg/s
SMS
WA
Email
Live event stream
Streaming
SMS
delivered
+1 415 ••• 0142
just now
WhatsApp
read
+44 7700 ••• 819
2s ago
Email
opened
nadia@v•••.io
4s ago
SMS
delivered
+81 90 •••• 4421
6s ago
Voice
completed
+1 312 ••• 7732
8s ago
Pricing
Pricing that respects your runway.
Pay for what you send. No seat fees. No surprise overages. Volume discounts kick in automatically.
Starter
Build, prototype, ship.
$39
/ month
Start free
- 10K messages/mo included
- All channels
- Email support
- Basic analytics
- Sandbox + production keys
Most popular
Scale
For teams in production.
$159
/ month
Start 14-day trial
- 100K messages/mo included
- Smart fallback routing
- Priority support · 1h SLA
- Advanced analytics
- Custom webhooks & retries
- SOC 2 reporting
Enterprise
Mission-critical, at scale.
Custom
Talk to sales
- Unlimited volume
- Dedicated routing & sub-accounts
- 24/7 named support
- Custom SLA · 99.99%+
- HIPAA, BAA available
- On-prem connectors
Volume estimator
Move the slider, see your bill.
Mix is roughly 60% SMS · 20% WhatsApp · 18% Email · 2% Voice.
1K500K1M2M
50,000 messages
$221.80
estimated · USD / month
Docs
Documentation that reads like a manual.
Examples in every supported language. Searchable. Versioned. Loved by engineers who hate documentation.
Guides / Quickstart
Quickstart
Send your first message in under five minutes. This guide walks through installing the SDK, authenticating, and dispatching to any channel.
1. Install
bash
npm install msgdeck2. Authenticate
Grab your API key from the dashboard. Keep it server-side; never ship it to a browser.
js
import msg from 'msgdeck';
msg.configure({ apiKey: process.env.MSGDECK_KEY });3. Send
js
await msg.messages.send({
to: '+1 415 555 0142',
channel: 'sms',
content: 'Hello from MsgDeck.'
});
That is it. Check the Logs tab to see your message land.
Guides / Fallback chains
Fallback chains
When delivery on the primary channel fails, MsgDeck can automatically retry on alternate channels. Define a fallback chain inline or via a Route in your dashboard.
Inline fallback
js
await msg.messages.send({
to: '+44 7700 900819',
channel: 'whatsapp',
fallback: ['sms', 'email'],
template: 'order_shipped'
});
Each step waits up to 90s for a terminal status before falling back. Tune via fallback_timeout.
Reference / Webhooks
Webhooks
MsgDeck delivers signed webhooks for every message lifecycle event: queued, sent, delivered, read, clicked, failed.
Verify the signature
js
const sig = req.headers['x-msgdeck-signature'];
const ok = msg.webhooks.verify(req.rawBody, sig, SIGNING_SECRET);
if (!ok) return res.status(400).end();
Customers
Engineers who actually like their messaging stack.
We migrated 18 microservices to MsgDeck in a week. Latency dropped from 340ms to 87ms. Our on-call engineers actually sleep now.
The fallback routing alone paid for the platform in three weeks. WhatsApp first, SMS second, email if all else fails, one config block.
We pen-tested the API for two weeks. Could not break it. Their incident response team responded faster than our own monitoring.
The dashboard is the first observability tool I have used that does not make me want to write my own. Per-message tracing is a superpower.
Ready to ship?
Free for 14 days. No credit card. Production-ready API key in 60 seconds.
$ npm install msgdeck — and you are 30 seconds away.