Order updates
Tell customers the moment an order is confirmed, shipped or out for delivery.
AAcme Shop
Good news, Sara! Your order #2291 is out for delivery and should arrive by 6pm.14:12
Today
Send a WhatsApp message with one request.
09:41POST /v1/sessions/acme/messages
{
"to": "+447700900123",
"type": "text",
"content": "Send a WhatsApp message with one request."
}status: sent → delivered → read
7 days free. No card. 150 messages a day to test with.
Wazen
From QR code to first message in about two minutes.
09:421/3
Connect your number
Open WhatsApp on the phone, go to Linked devices, and scan the code in your dashboard. The number stays on your phone and keeps working there.
2/3
Create an API key
One click in the dashboard. Keys are shown once and can be revoked at any time.
3/3
Send from your code
Call the REST API or use an SDK. Replies and delivery updates come back to your webhook.
Wazen
Use the language you already write.
09:43Official SDKs for TypeScript, Python, .NET and PHP, or plain HTTP from anything else. Every endpoint is in the docs with a working example.
Browse the API reference →$npm install @wazen/sdk
import { Wazen } from "@wazen/sdk"; const wazen = new Wazen("wz_your_key"); await wazen.messages.send("SESSION_ID", { to: "+447700900123", type: "text", content: "Hello from Wazen!",});
Wazen
Give your AI agent a WhatsApp number.
09:44Wazen speaks the Model Context Protocol, so Claude, Cursor and other agents can send messages, read replies and manage groups with no glue code. One command adds it to Claude Code:
claude mcp add --transport http \ --header "Authorization: Bearer wz_your_key" \ wazen https://wazen.dev/mcp
Your agent · connected to Wazen
Remind everyone booked for tomorrow that we open at 10, not 9.
send_message · to +447700900123
send_message · to +447700900456
send_message · to +447700900789
Done. 3 customers have been told about the 10am opening.
Wazen
What people send with it.
09:45If your business already talks to customers on WhatsApp, Wazen lets your software do the routine part.
Appointment reminders
Cut no-shows at clinics, salons and tutors with a reminder the day before.
KKhan Dental
Reminder: your appointment with Dr Khan is tomorrow at 11:30. Reply 1 to confirm or 2 to rebook.10:00
110:04
Login codes
Send one-time codes where people actually read their messages.
AAcme
Your Acme login code is 482 913. It expires in 10 minutes.08:51
Support replies
Receive customer messages on your webhook and answer from your own tools.
AAcme Support
Hi, my parcel hasn't arrived yet.16:20
Thanks for getting in touch! A member of our team will reply here within the hour.16:20
Wazen
New numbers start slowly, on purpose.
09:46WhatsApp watches new numbers that suddenly send a lot. Wazen's warming mode builds up a number's history over 14 days with natural conversations, and every send is paced with small, human-like gaps. It's included on every paid plan.
No tool can promise a number will never be restricted. Sending people messages they asked for, from a warmed number, is what keeps the risk low.
WarmingDay 14
messages a day100–200
Wazen
Pay for numbers, not messages.
09:47Starter
1 WhatsApp number
£49/year- Full messaging, groups and channels API
- Webhooks for replies and delivery updates
- MCP server for AI agents
- 14-day number warming
Pro
Most pickedUp to 3 WhatsApp numbers
£149/year- Full messaging, groups and channels API
- Webhooks for replies and delivery updates
- MCP server for AI agents
- 14-day number warming
Business
Up to 10 WhatsApp numbers
£349/year- Full messaging, groups and channels API
- Webhooks for replies and delivery updates
- MCP server for AI agents
- 14-day number warming
Prices in GBP. Cancel any time from your dashboard.
Running WhatsApp for clients?
Connect up to 10 numbers on one account, one per client, each with its own webhooks, warming and message history. One API key reaches all of them.
See plansNot a developer? We'll set it up for you.
Tell us what should happen: order updates from your shop, reminders from your booking system, replies in your CRM. We build the connection and hand it over working.
From£50
Tell us what you needWazen
Questions people ask first.
09:48Tap a question and Wazen answers. Something else? Email us and you'll get a reply from a person.
support@wazen.devHow does Wazen connect to WhatsApp?
You link a WhatsApp number the same way you link WhatsApp Web: scan a QR code from the phone's Linked devices screen. Wazen then sends and receives through that number, and your code talks to Wazen over a REST API.
Is this the official WhatsApp Business API?
No. The official API needs Meta approval, message templates and per-conversation fees. Wazen works with an ordinary WhatsApp or WhatsApp Business number, so you can start in minutes. The trade-off is that you should follow WhatsApp's rules yourself: message people who expect to hear from you.
Should I use a dedicated number?
Yes, we recommend a number used only for your business. Any number that can run WhatsApp works.
What is number warming?
New numbers that suddenly send a lot can get restricted. Warming builds up a new number's activity over 14 days, and every message is paced with natural gaps. It's included on every paid plan.
What do I get in the free trial?
7 days, no card needed, with 1 WhatsApp number, up to 150 messages and 5 different chats a day, and every feature except number warming. When you pick a plan the limits go away.
Are there message limits on paid plans?
There are no message caps or per-message fees. Sending is paced to protect your number, and new numbers ramp up during warming.
Can AI agents use Wazen?
Yes. Wazen includes an MCP server, so Claude, Cursor and other MCP clients can send messages, read history and manage groups using your API key. It's on every plan.
What happens to my data if I stop?
When a trial or subscription ends, your account and its data are kept for 30 days in case you come back, then deleted.