Create your workspace
Register your project and store your API key in your backend. Your trial starts when you create your account.
NOTIFICATIONS FOR DEVELOPERS
Your app.
Your events.
WhatsApp notifications.
Add order updates, appointment reminders and documents to your software. Send through a REST API and receive replies and delivery events in your backend.
20 messages a day · No card required · Your own number
APP EVENT → WHATSAPP NOTIFICATION
o.Your applicationExample
POST /v1/messages
{
"channel": "whatsapp",
"to": "+13015550123",
"text": "Your appointment is confirmed!"
} Your backend decides when to notify.
API → WhatsApp → your customer
Illustration. Does not show live activity.
Illustration. Does not show live activity.
Your numberOne connection per account
Your integrationAPI and signed webhooks
Your controlSeparate keys and connection
BUILD YOUR FIRST NOTIFICATION
An event in your app. A useful update for your user.
For SaaS products, CRMs, booking systems and internal tools.
Connect your WhatsApp
Scan your QR code from Linked devices. You can change numbers while keeping one active line.
Trigger from your backend
Call the API when an order, appointment or service changes. Store the message ID and follow its status through signed webhooks.
WHAT WILL YOU BUILD?
Built around your application events.
order.paidOrder confirmations
Confirm a purchase or send an invoice after your application records a payment.
appointment.confirmedAppointments & reminders
Notify your users when a booking is confirmed or changed.
service.completedReports & documents
Share a service photo or a PDF report from your own application.
ticket.updatedSupport updates
Let users know a ticket changed, and receive their replies in your backend.
These are example events in your software. Your backend schedules and triggers the API call; OswiLink does not monitor your orders or bookings.
REST API · JSON · WEBHOOKS
Your first notification starts here.
Use cURL, Node.js or Laravel from your backend. Keep one idempotency key per notification and store the returned message ID.
POST /v1/messages
curl "https://oswilink.com/v1/messages" \
-H "Authorization: Bearer $OSWI_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: order-123-confirmed-v1" \
--data '{"channel":"whatsapp","to":"+13015550123",
"text":"Your order is confirmed."}'Example only. Replace the fictional recipient with an authorized test number. HTTP 202 means queued; follow the message status to confirm delivery. Live sending requires activation during the beta.
SEND THE CONTEXT YOUR USERS NEED
A notification.
With the right attachment.
Send a service photo, an invoice PDF or a text update from the same endpoint. Files are supplied through your public HTTPS URLs.
See formats and limitsAaText▧Images▷Video≈AudioPDFDocuments↩Replies
DEVELOPER BETA
Build one workflow.
Test it end to end.
7days free
- 20 messages a day during your trial
- One WhatsApp line per account
- API key, QR code and documentation
- No card or automatic charges
Pilot access
Live sending requires operator activation. Simulation mode does not send messages to phones. The connection uses Baileys and is not the official WhatsApp API.
Give your application a notification channel.
Create an account, save your backend key and open the integration guide.
Welcome back.
Your connection and project, in one place.
Google sign-in is coming soon.
or with your email and password
During the pilot, contact the administrator to recover account access.
Overview
Your channel at a glance.
Checking connection
Link your number to get started.
—
Usage in the last 24 hours.
NEXT STEP
Send your first API notification.
Save your backend key, link your number and follow a message from queued to its final status.
Every number, a conversation.
Select a number to see its messages and statuses, or start a conversation.
Only activity processed by OswiLink is shown, not your phone’s full history.WhatsApp · temporary content
CONNECTIONOne line per account
Your WhatsApp, connected.
Checking connection…
WhatsApp → Linked devices → Link a device. Scan the QR code from another screen. Do not share it.
If you unlink from WhatsApp, a new QR code will be prepared when you return to the dashboard.
INTEGRATIONREST API
One key. Your project.
Use it only from your backend. Never in an APK, browser or public repository.
BASE URL
https://oswilink.comThe previous key will stop working. This does not change your number or WhatsApp session.
See integration examples →Delivery events go to your backend.
Connect your backend HTTPS webhook to receive incoming messages and status updates.
Leave the URL empty to disable it. Learn how to verify signatures →
Clear from the start.
Monthly subscriptions are not active yet. Your trial does not trigger automatic charges.
One phone number · 100 messages per day · files up to 8 MiB. Payment starts the monthly subscription; it does not extend the free trial.
Payments will be processed by Stripe. OswiLink does not store your card details.
Access & security
- Project
- —
- —
Google sign-in
Only the alerts that matter.
Checking email service…
Sent to your verified account email. We never include conversations, keys or QR codes.
NO HIDDEN FINE PRINT
Before you start.
Can I use it from a mobile app or any backend?
Any backend that can make HTTPS requests can use the REST API. A mobile or browser app should call your backend so that your private API key stays on the server.
Can each of my customers connect their own number?
The beta supports one active WhatsApp number per OswiLink account. A reseller dashboard, multiple customer numbers in one account and customer provisioning by API are not available yet.
Do I need my own phone?
Yes. You link a WhatsApp account already registered on your phone. OswiLink does not create the account or replace that registration.
What happens when my trial ends?
New sends are blocked and the connection stops. There are no automatic charges. Monthly subscriptions and payments are not active yet.
Are my conversations stored?
We are not a permanent archive. Content and events are kept temporarily for about 24 hours; technical message metadata for up to 30 days. Connection credentials are stored separately. Read the details.
How does OswiLink connect to my WhatsApp?
Link your WhatsApp account by scanning a QR code from Linked devices. Then manage your connection and reconnect when needed, all from your dashboard. OswiLink is an independent service and does not use the official WhatsApp Business Platform.