Sendzen
WhatsApp API for developers — send messages in minutes with clean SDKs and webhooks
| What is it | WhatsApp API for developers — send messages in minutes with clean SDKs and webhooks |
|---|---|
| Pricing | Freemium — from €20/mo |
| Free tier | Yes |
| Platform | Web Application |
| API | Yes |
| Works with | n8n |
| Best for | sending transactional notifications via WhatsApp, building automated customer support flows |
| Domain registered | 2025 |
Data updated Aug. 1, 2026
What does Sendzen do?
Sendzen is a developer-focused WhatsApp API that gets you from signup to your first sent message in under five minutes. It wraps Meta's WhatsApp Cloud API with clean SDKs (Node.js, Python, and more), predictable webhooks, and a dashboard that shows every request and response in real time. You can send utility, marketing, and authentication messages, manage templates, handle opt-ins, and even use the WhatsApp Voice API — all through a single, straightforward interface.
What sets Sendzen apart is its obsession with developer experience. Instead of wrestling with raw Graph API calls and manual WABA setup, you get intuitive SDKs, human-readable error messages, and tools like test mode to simulate events without sending real messages. The platform also includes automated opt-in management, template management via UI and API, and detailed logging that makes debugging quick. A comparison table on the site shows Sendzen beating the WhatsApp Cloud API, Twilio, and WATI/AiSensy on onboarding speed, SDK quality, and built-in infrastructure like logging and webhook management.
Sendzen is built for software developers, product engineers, and SaaS platforms that need to add WhatsApp messaging to their applications. Use cases include sending transactional notifications (order confirmations, delivery updates), building automated customer support flows, and embedding white-label WhatsApp messaging into your own product. The service is an official Meta Business Partner, runs on enterprise-grade infrastructure, and encrypts data at rest with AES-256. If you need a straightforward, reliable way to send WhatsApp messages programmatically, Sendzen does the job without the usual friction.
Key features
What makes it stand outWho is Sendzen for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardFree
- 4500 credits
- 375 WhatsApp Messages
- 1 WhatsApp Number
- 2 Users
- Community Support
Starter
- 60000 credits/month
- 5000 WhatsApp Messages
- 1 WhatsApp Number
- 5 Users
- Email Support
Pro
- 900000 credits/month
- 75000 WhatsApp Messages
- 3 WhatsApp Numbers
- 10 Users
- Priority Support & Onboarding
Enterprise
- 3000000 credits/month
- 250000 WhatsApp Messages
- Unlimited Numbers & Users
- Dedicated Support & SLA
- Self-Hosting Options
Trust & presence
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