Get Your Free WhatsApp Business API Instantly
SendZen provides the official Meta WhatsApp Business API with a generous free tier of 600 messages every month. Instantly send OTPs, utility messages, and marketing campaigns. Go from signup to sending your first message in minutes, no credit card required.
Get Started for Free in 4 Simple Steps
We've streamlined the entire process. Understand what you get for free and how to get your API key in minutes.
Understand The Free Tier
Get 600 free messages every month for any use-case (OTPs, Marketing, etc.). No setup fees, no monthly charges. Full API access from day one.
Sign Up Instantly
Create your SendZen account in seconds. We only need your name and email. No credit card is required to start.
Connect Your Number
Follow our simple, guided embedded flow to connect a new or existing phone number to the WhatsApp Business API.
Send Your First Message
Use our developer-friendly SDKs or a simple cURL request to send your first message. It's that easy!
A Powerful API, Included Free
Our free tier gives you full access to the entire SendZen platform. We don't limit features—you get the same powerful, developer-first experience from day one.
Built for DX
With clean SDKs, predictable webhooks, and documentation that's actually useful, we are obsessed with providing a world-class developer experience.
Reliable & Scalable
Built on enterprise-grade infrastructure, SendZen is designed for high-throughput messaging like OTPs, order updates, and marketing campaigns, with real-time delivery reports.
Automated Opt-In Management
Effortlessly comply with messaging standards. We help manage user opt-ins and opt-outs to prevent sending to those who no longer want your messages.
Enterprise-Grade Security
Your data is protected with industry-best practices. All sensitive tokens and IDs are encrypted at rest using AWS KMS for maximum security.
Free Whitelabel Solution
Test our entire platform under your own brand. We provide a free whitelabel plan to connect your domain and evaluate our powerful components before you commit.
Plug & Play Integration
Easily integrate our API into your system with free embedded components for WhatsApp onboarding and template management. A true plug-and-play experience.
Use-Cases for Every Business
Whether you need a WhatsApp API to send messages for transactional alerts or a full WhatsApp integration API for customer support, our solution is ready.
Automated & Utility Messages
Reliably use our WhatsApp message API for sending OTPs, order confirmations, shipping updates, and appointment reminders. A perfect API for WhatsApp that integrates directly into your backend systems.
Conversational Support
Integrate our business WhatsApp API with your CRM to manage support conversations at scale. As your WhatsApp API service provider, we ensure you can provide instant, personalized help where your customers are.
Marketing & Engagement
Leverage our powerful WhatsApp marketing API to send targeted promotions, new product announcements, and re-engage users. The perfect WhatsApp messaging API to boost your campaigns.
A Developer Focused WhatsApp API Provider
Get instant access to a reliable WhatsApp API service without the typical wait times. We are the free WhatsApp API provider built for developers and growing businesses.
Instant API Key Access
Stop wondering how to get WhatsApp API access. With us, you get your WhatsApp developer API key instantly. It's the closest you'll get to a direct WhatsApp Business API download for your credentials.
Truly Free to Start (Kostenlos)
Our platform offers a genuine free WhatsApp Business API. No credit card, no commitments. Or, as they say in Germany, our WhatsApp Business API kostenlos offer is the real deal.
Effortless API Integration
Our WhatsApp for business API is designed for developers. Use our official SDKs, comprehensive documentation, and plug-and-play components for a seamless WhatsApp Business API integration experience.
Reliable & Scalable Software
As a leading WhatsApp Business API service provider, we provide robust WhatsApp API software and infrastructure that scales with your needs, ensuring your messages are always delivered.
Frequently Asked Questions
Answers to common questions about the free WhatsApp Business API.
Ready to Build on WhatsApp?
Create your account and get your free WhatsApp Business API key in minutes. No friction, just building.
Start Building for Free