Financial services
Secure sign-in, fraud alerts, payment updates, and service conversations.
YouYi cloud communications.
Reach customers on every important channel through one clear API, with routing and delivery insight built in.
No setup fee Pay as you go Sandbox included
YouYi APICarrier edge
MESSAGINGVERIFYVOICENUMBERSEMAIL
One connection.
Every conversation.
Use a focused set of APIs that feel consistent across channels while YouYi manages carrier complexity beneath the surface.
01
Programmable Messaging
SMS + MMS02Send transactional and conversational messages with one clean API.
YouYi Verify
OTP03Confirm every real customer without building verification infrastructure.
Programmable Voice
VOICE04Create calls, call flows, and voice notifications from simple building blocks.
Global Numbers
NUMBERS05Provision local, mobile, and toll-free numbers from a searchable inventory.
Transactional Email
EMAILDeliver account and product email with the same operational visibility.
Routes are infrastructure.
Clarity is the product.
Each request is evaluated against destination rules, carrier performance, consent context, and real-time availability before it leaves our edge.
Explore the platform190+countries and territories
Multi-routecarrier-aware delivery logic
24/7network operations coverage
Built for the path from first request to full scale.
Predictable resources, readable errors, signed webhooks, and an activity log make YouYi comfortable for developers and operators alike.
See the API workflowsend-message.js
const message = await youyi.messages.send({
channel: "sms",
from: "YOUYI",
to: "+14155552671",
text: "Your delivery is arriving today."
});
console.log(message.status);
// accepted 202 ACCEPTED request_7f2a
Move the customer
journey forward.
Communication patterns tuned to the moments where trust, timing, and operational context matter.
Commerce
Order updates, delivery coordination, customer care, and retention messaging.
Platforms
Embed multi-tenant communications with isolated keys, numbers, and event streams.
Healthcare
Appointment reminders and patient notifications built around consent-aware workflows.
People when you need them.
Route reviews, onboarding guidance, and 24/7 incident support are available from a team that understands communications operations.
Make the next message count.
Open a YouYi account and send your first test message in minutes.
Start building