WA Sender
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WhatsApp infrastructure for every customer workflow

From authentication to reminders, campaigns, and support workflows, WA Sender gives developers and teams one secure platform to send, track, automate, and scale WhatsApp communication.

OTP readyWebhook eventsSender controlsCampaign workflowsDeveloper-first API
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Solutions for every use case

Real workflows, real outcomes. See how WA Sender solves specific business problems.

API

OTP & Verification

Users need fast, reliable login and signup verification.

How it works

  • Send OTP through API with auto-generated code
  • Track delivery status in real time
  • Retry failed messages safely with idempotency

Outcome

Reduce failed signups and give users a familiar WhatsApp verification flow.

Webhooks

Order & Shipping Updates

Customers want clear updates after purchase.

How it works

  • Trigger messages from your backend
  • Send order confirmations and shipping updates
  • Receive delivery webhooks

Outcome

Lower support questions and keep customers informed automatically.

Templates

Appointments & Reminders

Businesses lose money from no-shows.

How it works

  • Send confirmation after booking
  • Schedule reminder before appointment
  • Track delivery and failed sends

Outcome

Reduce no-shows and keep clients updated without manual work.

Campaigns

Marketing Campaigns

Teams need to reach existing customers with controlled campaigns.

How it works

  • Segment contacts by tags and behavior
  • Launch campaign with sender limits
  • Track delivery and engagement metrics

Outcome

Run targeted WhatsApp campaigns with sender limits and audit visibility.

Inbox

Support & Notifications

Support teams need alerts and customer updates in one operational flow.

How it works

  • Send system alerts and notifications
  • Mirror conversations into shared inbox
  • Assign conversations to operators

Outcome

Keep support workflows organized without losing message context.

Enterprise

SaaS & Platforms

Multi-client products need messaging infrastructure without rebuilding WhatsApp logic.

How it works

  • Create workspace-scoped API clients
  • Isolate senders per tenant
  • Use signed webhooks and audit logs

Outcome

Add WhatsApp messaging to your platform in days, not months.

Built for real operational workflows

Three core patterns that cover most WhatsApp messaging needs.

Authenticate users

Send OTP codes with strict rate limits and idempotency. Track delivery until verification completes.

OTP APIRetry queueIdempotencyDelivery status

Notify customers

Trigger transactional messages from your backend. Use templates for consistent messaging at scale.

Transactional alertsTemplatesWebhooksSender controls

Grow and support

Run campaigns, manage conversations, and automate workflows from a single operational platform.

CampaignsSegmentsShared inboxAutomation rules

From API call to delivered WhatsApp message

A simple 4-step flow that gives you full control over message delivery.

1

Your app sends an API request

Call the send endpoint with your API key, sender ID, and message.

2

WA Sender queues and validates

Message is validated, queued, and rate-limited per sender.

3

Connected sender delivers

Your WhatsApp sender delivers the message to the recipient.

4

Your app receives a webhook

Get delivery status, read receipts, and failure events.

Queue + retrySigned webhooksSender isolationAudit logs
Send a message
bash
curl -X POST https://api.wasender.com/v1/messages/send \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "sender_id": "snd_123456",
    "to": "212612345678",
    "type": "custom",
    "message": "Your appointment is confirmed for tomorrow at 10:00."
  }'

Designed for teams that depend on timely messages

From startups to enterprises, WA Sender fits your stack.

SaaS platforms

Growth

Login OTP, account alerts, billing reminders

Clinics & healthcare

Starter

Appointment confirmations, pre-visit reminders

Ecommerce stores

Growth

Order confirmations, shipping updates, delivery alerts

Agencies

Pro

Multi-client campaigns, sender management, audit logs

Education platforms

Starter

Enrollment confirmations, exam reminders, results

Local services

Starter

Booking confirmations, service reminders, follow-ups

Why not just use manual WhatsApp?

Manual sending works for one message. It breaks at scale.

Feature
Manual WhatsApp
WA Sender
API access
Delivery logs
Team controls
Webhook events
Sender isolation
Queue and retry
Campaigns
Shared inbox
Audit logs
Scale to millions

Build your WhatsApp workflow once. Reuse it everywhere.

Connect a sender, create an API key, and start sending OTPs, alerts, reminders, and campaigns from your own systems.

Start for freeRead the docs