WhatsApp APIEngineered for Scale · Multi-Device Engine
Automation, integrations, and scale — in one unified API
Connect multiple WhatsApp instances via high-speed WebSockets, stream real-time events to your webhooks, and automate multi-channel conversations with sub-100ms latency.
Engineered for mission-critical messaging
Capabilities
Hardware-grade reliability. Every tool for modern messaging.
A complete high-performance toolkit for sending messages, linking multi-device sessions, and deploying autonomous AI agents in real time.
High-Speed Message Dispatch
Send text, media, location, contacts, and interactive buttons via a unified REST & WebSocket API.
Rich Media & Document Streaming
Deliver HD images, documents, audio notes, and videos with automatic format handling and CDN caching.
Real-Time Webhook Streaming
Subscribe to delivery, read, and inbound reply events with zero-lag WebSocket feeds and HTTP callbacks.
Instant QR & Pairing Code
Link WhatsApp numbers in seconds with an interactive browser QR flow or 8-digit pairing code.
Multi-Session Architecture
Run, monitor, and scale multiple WhatsApp accounts simultaneously from a unified organization workspace.
Contact & Group Management
Programmatically inspect group members, manage permissions, create invite links, and query contacts.
Connection Heartbeat Telemetry
Live connection health monitoring with automatic reconnect logic and instant offline alerts.
Scoped API Security
Generate and rotate fine-grained tokens with instance-level access control and IP allowlisting.
AI Agent & Workflow Automation
Integrate intelligent AI agents and automated workflows to handle customer conversations, answer queries, and orchestrate WhatsApp interactions through n8n and custom APIs.
Developer Console & Sandbox
Built-in interactive API console with live request builders, curl generators, and complete docs.
Enterprise-Grade Reliability & Security
Protect WhatsApp sessions with encrypted credential storage, role-based access control, secure session isolation, and audit-ready activity logs.
Throughput & Quota Analytics
Track message delivery rates, latency percentiles, error breakdowns, and monthly quotas in real time.
Developer First
Engineered by developers, for developers
A clean REST and WebSocket API surface with predictable JSON responses, official SDKs, and comprehensive documentation that respects your time.
- Sub-100ms Latency. Real-time WebSocket event streaming delivers messages and events with zero lag.
- Multi-Device Protocol. Connect multiple numbers as linked companion devices without phone disconnections.
- Predictable API Surface. Standard REST endpoints with clean JSON payloads, webhooks, and official SDKs.
curl -X POST "https://api.conversoempire.tech/cwa/messages/text/send" \ -H "X-CWA-Key: cwa_live_sec_..." \ -H "X-CWA-Instance: inst_01j8k9m" \ -H "Content-Type: application/json" \ -d '{ "number": "923001234567", "text": "Hello from CWA v3!" }' # → { "key": { "id": "msg_8f2a1c", "fromMe": true }, "status": "PENDING" }
Getting Started
Three steps to production
Connect your WhatsApp number
Scan an instant QR code or enter a pairing code to link your number via Multi-Device protocol in seconds.
Generate your API key
Create an environment-scoped API token from the dashboard with granular instance permissions.
Automate & launch AI agents
Send messages, stream webhook events, and configure autonomous LLM assistants to handle conversations.
Ecosystem Integrations
Connects directly into your existing production stack
CWA v3 sits seamlessly between your applications and your customers. Bridge CRMs, storefronts, ad platforms, and custom backend engines via one WhatsApp API.
Enterprise Security
Infrastructure you can trust at scale
CWA v3 is engineered with cryptographic privacy, multi-tenant isolation, and automated queue defense as first principles.
End-to-End Encryption
Messages preserve WhatsApp's native protocol encryption between linked devices and endpoints.
AES-256 Key Encryption
Session tokens and authentication credentials are encrypted at rest with AES-256.
Multi-Tenant Isolation
Isolated session memory and Redis queue partitions per workspace to prevent cross-account contention.
Anti-Ban Queueing
Configurable rate limiters, burst dampening, and humanized typing delays protect account reputation.
Real-Time Telemetry & Audit
Instant session heartbeat telemetry, delivery receipts, and immutable security audit logs.
Transparent Pricing
Plans that scale with your messaging volume
Live WhatsApp automation plans with zero per-template markup fees. Choose the capacity that fits your organization.
FAQ
Frequently asked questions
CWA v3 is an enterprise WhatsApp API and automation platform. It uses WhatsApp's official Multi-Device protocol to connect as a companion device (similar to WhatsApp Web). This allows your phone to stay operational while our high-speed engine streams messages and webhook events with sub-100ms latency.
No. CWA v3 operates via an independent linked-device protocol and is not affiliated with or endorsed by Meta Platforms, Inc. or WhatsApp Inc. Unlike the official Cloud API, there are no per-template conversation markup fees, giving you full control over your messaging costs while following standard account guidelines.
Any automated messaging carries inherent risk under WhatsApp's spam prevention algorithms. CWA v3 incorporates humanized typing simulation, intelligent rate limiters, burst suppression, and queue smoothing to minimize risks. However, we advise adhering to responsible messaging practices and obtaining clear user opt-in.
AI agents are available on supported plan tiers (Professional, Business, and Enterprise). You can configure custom LLM system prompts, intent triggers, scheduling, and automatic reply workflows with human agent fallback.
Once you select a plan, you submit payment via your preferred gateway. An administrator verifies the transaction and activates your instance quotas immediately. You will receive an instant notification once your workspace is ready.
CWA v3 provides standard REST and WebSocket interfaces that integrate seamlessly with any language or framework. We offer ready-to-run SDKs and code samples for Node.js, Python, PHP, and cURL.
Ready to build smarter WhatsApp conversations?
Start with an instant workspace, connect your WhatsApp number via QR code, and send your first production API message in under five minutes.