SendZen is a developer-first WhatsApp Business API platform that makes it easy to add WhatsApp messaging into your product without wrestling with Meta’s setup and edge cases. Use SendZen to onboard customers faster (with embedded signup), send messages through clean APIs, and ship integrations with open-source SDKs (Node.js, C#, Python). You also get predictable pricing, built-in security and compliance, and native n8n integration for automation workflows. If you want WhatsApp inside your app with less time spent on approvals, webhooks, templates, and retries, SendZen is the simplest way to get there.