NewPartner mode: your customers connect their number with one scan

Send your notifications on WhatsApp, by API.

Connect a number with a QR code, send a message with one request, follow it until « read ». The dashboard, the webhooks and payment by Mobile Money are included.

Create an accountRead the documentation
  • A number connected in 1 minute
  • Sent, delivered, read statuses
  • Mobile Money and card
The product

Everything you need to notify, nothing more.

For developers

From zero to the first message in three steps.

No SDK to install and no account to get approved: an API key and plain HTTP.

  1. 1Connect a numberIn the dashboard, scan the QR code with WhatsApp (Linked devices), or type the pairing code.
  2. 2Create an API keyIt is shown only once. Create one per application, and revoke it at any time.
  3. 3SendOne HTTP call. The answer comes back at once with the message's id; its status follows by webhook.
Read the full documentation
Send a message
curl https://api.sendzapp.com/v1/messages \
  -H "Authorization: Bearer $SENDZAPP_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: order-1042" \
  -d '{
    "numberId": "NUMBER_ID",
    "to": "+237670000001",
    "text": "Commande n° 1042 confirmée"
  }'

Response · 202

{
  "id": "0198a3f2-…",
  "numberId": "NUMBER_ID",
  "to": "+237670000001",
  "status": "Queued",
  "createdAt": "2026-10-11T10:42:07Z"
}
Use cases

Every notification deserves to be read.

Your customers read WhatsApp. Send them what they need to know, when they need it.

For platforms

Offer WhatsApp to your own customers.

You build software whose customers want to notify theirs? One subscription with you, one space per customer, and a link for them to connect their number themselves.

  • One subscription, shared quotasYou pay once. The numbers and messages of all your customers count against your plan.
  • One space per customerEach customer has their own numbers, messages and webhooks, kept apart from the others'.
  • A connection linkSend a link: the person scans the QR code on a page in your name, without creating an account and without seeing anything else.
See the partner plan
Security

Plain, isolated, verifiable.

What touches your keys, your numbers and your webhooks is protected by default.

  • Hashed API keys

    A key is shown only when it is created: we keep nothing but its fingerprint. Once revoked, it stops working at once.

  • Encrypted secrets

    Webhook secrets are encrypted at rest (AES-256-GCM). Connection links are time-limited and revocable.

  • Signed webhooks

    Every delivery carries a timestamped signature (HMAC-SHA256), to reject what is not from us, or replayed.

  • Isolated spaces

    Each space only sees its own numbers, messages and keys. The administration requires a password and an authenticator code.

Pricing

One subscription, no surprises.

Paid in advance for 30 days, by Mobile Money or by card. Nothing is charged automatically: you renew when you want, and we warn you before the end.

A month = 30 days. Prices are in CFA francs (XAF); the euro and dollar equivalents are indicative.

Frequently asked questions

What people ask us before they start.

Can't find your answer? Create an account: the free trial lets you check everything with your own number.

From the dashboard: add a number, then scan the QR code with WhatsApp (Settings, Linked devices, Link a device). If you are on the phone itself, type the pairing code instead.

No. An ordinary WhatsApp number is enough: it is connected as a linked device, the way WhatsApp Web is. The phone must stay on and connected to the Internet.

Yes. A free trial starts when you create your account, with no bank card. It does not renew.

A question before you start?Create an account: the free trial lets you test everything with your own number.Create an account

Your first message leaves in five minutes.

Create an account, scan a QR code, send a request. The free trial is enough to test everything.

Create an accountSee the questions