One API. Every channel your customers actually use.
Deliver mission-critical WhatsApp, RCS, SMS, and Email with automated failover, millisecond latency, and global routing intelligence through a single unified endpoint.
One integration. One dashboard. One contract.
Instead of managing four separate vendor relationships, API docs, billing cycles, and support contacts for WhatsApp, RCS, SMS, and Email, get all four channels through a single integration, a single dashboard, and a single contract.
Channels we offer
Deliver across all major messaging channels through a single unified infrastructure endpoint.
Efficiently manage customer interactions with the WhatsApp Business API.
Learn moreStreamline your communication with a bulk messaging solution Reach thousands.
Learn moreDeliver high-volume transactional and marketing emails with industry-leading inbox placement.
Learn moreOne integration. One dashboard. One contract.
Instead of managing four separate vendor relationships, API docs, billing cycles, and support contacts for WhatsApp, RCS, SMS, and Email, get all four channels through a single integration, a single dashboard, and a single contract.
Know what's running, before your customers do.
Every channel's delivery status, tracked component by component with real 90-day history — not a marketing claim, a live page you can check yourself.
View API StatusWhy developers choose Accelbiz
A single API across WhatsApp, RCS, SMS, and Email, with documentation written for how you actually build — not generic vendor boilerplate.
One API shape
Same authentication, request format, and webhook structure across all four channels.
Real documentation
Clear request/response examples, not auto-generated reference dumps.
Direct support
Reach a real integration engineer, not a ticket queue.
Architected for high-consequence customer communication
When dropped messages mean lost transactions or failed authentications, our deterministic waterfall guarantees delivery within specified latency parameters.
OTP & Two-Factor Authentication
Channel fallback ensures instant code delivery under 3 seconds even during carrier outages.
Transactional Order & Delivery Alerts
WhatsApp and RCS rich cards with live map tracking links and interactive reschedule buttons.
High-Volume Marketing Broadcasts
Segmented multi-channel campaigns with built-in opt-out handling and template approval queues.
Two-Way Customer Support Relay
Bidirectional webhooks that pipe inbound customer replies directly into Zendesk, Freshdesk, or custom internal tooling.
Enterprise-grade governance and data sovereignty
Every message is encrypted in transit and at rest with customer-managed keys. Maintain full compliance under India's DPDP Act with in-country data residency, automated PII redaction after delivery confirmation, and strict opt-in consent verification logs.
Talk to a real person, not a ticket queue.
Whether you're evaluating the API, need help with an integration, or have an account question — reach out and we'll route it to the right person.
One API. Every channel your customers actually use.
Sign in to start sending across WhatsApp, RCS, SMS, and Email today.