Authentication
that actually arrives.
Zynode routes every SMS, Voice and WhatsApp OTP through a tier-1 carrier mesh with smart fallback — so your users verify on the first try, in under 1.2 seconds, anywhere on earth.
Your Zynode code is
A real OTP, typed live. Switch channels to see how the same code arrives across SMS, WhatsApp and Voice.
A code that never arrives is a customer who never converts.
Most OTP providers treat delivery as a best-effort pipe. The result is measurable: lost signups, fraud chargebacks, and a support queue that never empties. Zynode treats it as the conversion event it actually is.
of users drop off when an OTP takes longer than 60 seconds to arrive.
drained yearly by artificial traffic inflation & SIM-farm attacks on legacy gateways.
OTP delivery failure rate on traditional aggregators across SEA, LATAM & Africa.
burned on re-sends, support tickets and recovered users for every dropped code.
Three channels. One cascade. Zero dropped users.
Set the order. Zynode tries the first, and if a carrier falters it falls through to the next — automatically, within the same request.
Deliver codes inside WhatsApp with one-tap autofill, brand identity and end-to-end encryption. Up to 40% cheaper than SMS in many markets — and users actually open it.
- Median latency
- 0.9s
- Cost tier
- lowest
- Traffic share
- 62%
Best for — Consumer apps, fintech, anywhere WhatsApp is the default messenger.
If the primary channel can't deliver within its SLA window, Zynode cascades to the next — same request, no client retry, no lost user.
Want this cascade tuned to your traffic and margins?
Send a code. Right now. Watch it land.
This is the real Zynode routing pipeline, pointed at a test number. Pick a channel, hit dispatch, and verify it yourself.
awaiting dispatch
import { Zynode } from "@zynode/sdk";
const zn = new Zynode({ apiKey: process.env.ZYNODE_KEY });
const res = await zn.otp.send({
channel: "whatsapp",
to: "+63 917 888 2026",
cascade: ["sms", "voice"],
ttl: 300,
});
// res.deliveryId · res.latencyMsOne mesh. 240+ countries. Direct to the carrier.
Zynode peers directly with tier-1 carriers — no aggregator middlemen. Tap a node to see its routes and edge latency.
Manila · BGC
Menarco Tower, Taguig, PH
- Edge latency
- 28ms
- Carriers
- Globe · Smart · DITO · PLDT
- Protocols
- SMS · WhatsApp · Voice
What it saves you. Down to the dollar.
Based on live Zynode routing telemetry across SMS, Voice & WhatsApp.
Live in three minutes.
One typed SDK, a single endpoint, webhooks that fire when the code lands — not when it's queued. Ship multi-channel OTP without the carrier-integration tax.
$ npm install @zynode/sdk- 99.998%
- Uptime SLA
- Real-time
- Webhooks
- Typed
- Node · Py · Go
- <1.2s
- p95 delivery
import { Zynode } from "@zynode/sdk";
const zn = new Zynode({ apiKey: process.env.ZYNODE_KEY });
export async function sendOtp(to: string) {
const res = await zn.otp.send({
to,
channel: "whatsapp",
cascade: ["sms", "voice"], // failover order
ttl: 300,
});
return res.deliveryId; // < 1.2s, guaranteed
}“We cut OTP auth costs by 34% and lifted SEA verification to 99.4%. The sub-second delivery is the part our growth team actually talks about.”
- SOC 2 Type II
- GDPR
- ISO 27001
- 99.998% SLA
Pay for what lands. Nothing else.
Starter
Pay as you goFor indie devs and early launches.
- SMS, Voice & WhatsApp OTP
- 10,000 free test credits
- Standard global routing
- Community support
- REST API + webhooks
Scale
For apps scaling globally.
- Smart fallback cascade
- Priority tier-1 routing (<1.0s)
- Anti-fraud & SIM-farm shield
- Custom WhatsApp templates
- 24/7 priority support · 99.99% SLA
- Dedicated account manager
Enterprise
High volumeFor regulated, high-volume orgs.
- Up to 45% volume discount
- Private VPC interconnect
- Custom SLA with credits
- Dedicated solutions architect
- SOC 2 + HIPAA pack
- Alpha sender ID registration
All plans · no setup fees · cancel anytime · usage billed on delivery, not on send.