Communications

190+ countries. 7 channels. One API. Automatic failover.

7 channels

Unified Integration

Product registry

190+

Countries Supported

Carrier network

< 2.5s

Global OTP Delivery

Observed median

800+

Carrier Connections

Routing table

System Architecture

Unified Channel Architecture

One REST API — SMS, WhatsApp, RCS, MMS, Email, Voice, and Video through a single integration. Trulay handles protocol translation, carrier selection, and compliance automatically.

When a channel degrades, failover is automatic — no retry logic needed on your side.

Deep Dive

01 ONE

One API, Every Channel

SMS to 190 countries. WhatsApp to 2 billion users. RCS on native phones. MMS for rich media. Email with authenticity proofs. Voice with neural TTS. Video with HIPAA-compliant rooms. One REST API sends to all of them. Channel-specific formatting, delivery tracking, and compliance handled automatically.

02 AUTOMATIC

Automatic Failover

Silent OTP fails on carrier? SMS fires in under 200ms. SMS blocked? WhatsApp takes over. WhatsApp session expired? Voice delivers the code. Five fallback channels run in sequence. Delivery rate stays above 99.5% regardless of carrier outages.

03 SUB-SECOND

Sub-Second at Million-Scale

Average OTP delivery: 1.8 seconds globally (observed median). Bulk campaigns: 10,000 messages per second. Rate limiting respects carrier thresholds. Adaptive queue management prevents traffic spikes from overwhelming downstream providers. Same latency whether you send 1 or 1 million.

04 MESSAGE

Message Integrity Proofs

Every message gets a MIP (Message Integrity Protocol) stamp — a cryptographic signature that proves the message originated from your verified sender identity and was not altered in transit. MvIP (Media Integrity Protocol) extends this to media verification: images, audio, and video attachments are signed at the source and verified on arrival. Stops spoofing, phishing, and BEC at the protocol level.

SMS API

Core

Global SMS delivery with 99.9% uptime and real-time analytics.

Carrier-Grade Smart RoutingReal-time path optimization across 800+ global carriers to bypass network congestion.
Bidirectional MessagingSend and receive messages with local numbers, short codes, and toll-free numbers globally.
Automatic Failover RetrySilent fallback to alternative carrier routes in under 150ms upon carrier delivery failure.
Global Compliance GuardAutomatic formatting and local regulation checking (TCPA, GDPR, CTIA) for every message sent.
+ 6 more

99.8%

Delivery Rate

<2.1s

Global Latency

800+

Carrier Connections

10k/sec

Throttling SLA

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WhatsApp Business API

Core

Rich messaging on the world's most popular platform.

Official Business VerificationGuide through Meta verification to display the official green check badge on your profile.
Interactive Message TemplatesBuild pre-approved templates with quick reply buttons, call-to-action links, and media placeholders.
Rich Media ExchangeSend and receive high-definition images, videos, audio, PDF documents, and location payloads.
Interactive Product ListsSend product catalogs, interactive lists, and single/multi-product messages to enable in-chat shopping.
+ 6 more

98.0%

Read Rate

45.0%

Engagement

<1.5s

Response Time

5M+

Active Sessions

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MMS API

Core

Send images, videos, and rich media via text message.

Media SupportImages, GIFs, and video
Group MessagingSend to multiple recipients
Fallback to SMSAutomatic degradation
Rich Media DeliveryHigh-resolution images, GIFs, and video up to carrier limits with automatic transcoding.
+ 2 more

99.5%

Delivery Rate

Media Types

<200ms

SMS Fallback

190+

Carrier Reach

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RCS Messaging

Core

Rich Communication Services with carousels, suggested replies, and branded sender profiles. The evolution of SMS.

Rich Cards & CarouselsInteractive media cards with images, buttons, and carousels directly in the native messaging app.
Suggested RepliesOne-tap response buttons that drive engagement and simplify customer interactions.
Branded Sender ProfileVerified business name, logo, and color displayed in the chat thread for instant recognition.
Read Receipts & Typing IndicatorsReal-time delivery, read, and typing status for complete conversation visibility.
+ 2 more

63%

Open Rate

22%

Click-Through

80+

Carrier Support

<200ms

SMS Fallback

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TruEmail

Core

Enterprise-grade email infrastructure with MIP authenticity proofs, multi-provider failover, and real-time deliverability intelligence.

Multi-Provider FailoverAutomatic failover across multiple SMTP providers. If one provider degrades, the next takes over in under 200ms — delivery never stops.
MIP StampingMessage Integrity Protocol — every outbound email receives a MIP proof linked to your verified sender identity. Recipients verify authenticity with one click. Stops BEC, CEO fraud, and spoofing at the protocol level.
DKIM + SPF + DMARCFull authentication suite with automatic key rotation. Guided DNS setup wizard gets your domain verified in under 5 minutes.
Deliverability IntelligenceReal-time inbox placement tracking across Gmail, Outlook, Yahoo, and 50+ ISPs. Spam score testing before every campaign. IP warmup scheduling built in.
+ 6 more

99.2%

Delivery Rate

Providers

<800ms

Avg Latency

99.95%

Uptime SLA

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Additional

Additional Channels

Viber Business

Rich messaging on Viber with carousels, buttons, and branded sticker packs. Strong in Eastern Europe and CIS.

View Details

Voice & Video

Programmable voice and video conferencing on the Infrastructure pillar — global PSTN reach, sub-50ms edge routing, and a 99.99% uptime SLA.

190+ Countries<50ms Edge Latency99.99% Uptime SLA

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Developer Platform

Built to Ship. Engineered Not to Lose.

Type-safe tooling on the surface. Resilient, verifiable infrastructure underneath.

POST /v1/messages

Node SDK v2

// Send an OTP with automatic channel failover
const response = await trulay.messages.send({
  to: "+1 555 0132",
  content: "Your code is 482913",
  channel: "whatsapp", // preferred
  fallback: ["sms", "voice"], // auto-failover order
  expireIn: "2m"
});
// response
{
  id: "msg_8F2A91",
  status: "delivered",
  route: "whatsapp",
  elapsed: "412ms",
  proof: "mip:5f9b2e" // tamper-evident stamp
}

SOC 2 Type II

GDPR Compliant

HIPAA Ready

ISO 27001

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Ship your first message in minutes.

One API. Every channel. Automatic failover. Start building with Trulay today.

Start Building Documentation

01Proof on Every Message

MIP Proves Every Message You Send

Every channel, every message, every sender — verified with a single proof.

Channel mesh

SMS

Voice

Video

One API — all channels

What MIP proves

Who sent it

Device trust, location, IP, behavior — verified silently.

What it says

Content unchanged from the moment of sending.

When it was sent

Anchored moment in time, timestamped and verifiable.

One click. No plugins.

The recipient never learns a protocol. They click once, and the proof either resolves — or it does not. There is no middle state. No degraded trust. No maybe.

02Delivery Guarantee

Automatic Failover Across Every Channel

When one channel fails, the next takes over in under 200ms. Delivery stays above 99.5% regardless of carrier outages.

Automatic failover

STEP 01

Message submitted

Through a single REST API call — channel-agnostic.

STEP 02

Primary channel tried

WhatsApp delivery attempted with timeout.

STEP 03

Timeout or failure

Carrier issue, session expired, or delivery timeout.

STEP 04

Failover fires

SMS attempts in under 200ms — automatic fallback.

STEP 05

Delivered with proof

MIP stamp attached. One click verifies sender + content + time.

190+ countries. One proof.

Every message you send carries a MIP proof. Every channel is verified.

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