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.

APISMSWhatsAppRCSMMSEmailVoiceVideo
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.

SMSBLOCKEDWhatsAppDELIVEREDSTAND-BY CHANNELSRCSMMSEMAILVOICEVIDEO
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.

SAME1 MSG1.8s1M MSGS1.8s10,000 MSG/S THROUGHPUTSAME LATENCY — ANY SCALE
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

Explore

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

Explore

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

8+

Media Types

<200ms

SMS Fallback

190+

Carrier Reach

Explore

Email API

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

4+

Providers

<800ms

Avg Latency

99.95%

Uptime SLA

Explore
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
Explore
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
Get Started

Ship your first message in minutes.

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

Start Building Documentation