We’re excited to share some big news with the Growby community: Our new product, SendZen.io is now live.
SendZen isn’t just another WhatsApp marketing dashboard. It’s a developer-first WhatsApp infrastructure layer built for software engineers, product teams, and SaaS platforms who are tired of wrestling with Meta’s complex Cloud API.
Why SendZen?
The WhatsApp marketing space is crowded with dashboards and campaign managers. But beneath the surface, there’s a deeper problem: the technical plumbing is broken.
Developers who want to send simple messages like order confirmations, password resets, or booking alerts face real headaches:
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Meta’s confusing Business Manager setup
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Slow message template approvals
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Webhook configuration nightmares
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Patchy documentation and lack of SDKs
We built SendZen to fix this. Our mission is clear: become the “Resend.com for WhatsApp.”
The SendZen Difference
With SendZen, any developer can:
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Sign up instantly
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Get an API key
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Send their first WhatsApp message in under 5 minutes
Think of it like this:
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Meta Cloud API = raw engine (powerful but messy)
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SendZen = clean, elegant wrapper (fast, developer-friendly)
This means less time wrestling with integrations and more time focusing on your product.
Built for Builders
Our audience is clear: developers, product managers, indie hackers, and CTOs. What they want, we deliver:
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Self-serve signup – no sales calls or demos
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Generous free tier – experiment without friction
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SDKs that just work – Node.js, Python, PHP, and more
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Predictable webhooks & logging – debug in seconds, not hours
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Enterprise-grade security – GDPR, CCPA, SOC2-ready from day one
We call it developer experience (DX) – and we’re obsessed with it.
Key Features
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Core APIs: SendMessage, SendMessages, GetMessage, GetMessageWebhook
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Embedded Signup: Onboard with WhatsApp Business in minutes
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Voice & Template API: Support for utility, marketing, and authentication flows
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Real-time logging: Every request and response visible in your dashboard
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Test mode: Safely simulate events without sending live messages
All built on a scalable AWS + .NET Core stack – secure, reliable, and designed for global scale.
For SaaS Platforms & Partners
Beyond individual developers, we’re also launching SendZen for Platforms – a complete whitelabel WhatsApp API designed for SaaS, CRMs, ERPs, and agencies.
With this, you can:
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Launch your own branded WhatsApp portal
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Embed our components directly into your product
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Control your own pricing and billing
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Go live in under two weeks
It’s a new way to scale your SaaS offering while creating additional revenue streams.
Why This Matters
We believe WhatsApp is no longer just a marketing channel – it’s critical infrastructure. From authentication (OTP/2FA) to transactional alerts and customer support, businesses worldwide need a secure, reliable, and developer-friendly way to integrate WhatsApp.
That’s the problem we’re solving with SendZen.
Get Started
The best part? You can try it right now.
👉Get Free WhatsApp Business API
👉 Read the Docs
Whether you’re a solo developer or a SaaS platform looking to scale, SendZen provides the foundation you can trust.
Stop fighting the API. Start building with SendZen.
Milan Motavar
Founder & CEO, SendZen.io
