WhatsApp Business API Infrastructure

The WhatsApp Business API
platform for SaaS builders.

HaaConnect lets any SaaS product offer WhatsApp Business to its own clients — with guided onboarding, a clean REST API, and full Meta compliance. One platform, unlimited tenants.

Request Access See how it works →

Multi-tenant

One API, unlimited client WABAs

Meta Compliant

Embedded Signup + official Cloud API

10 Minutes

Time to onboard a new tenant

How it works

Built for platforms, not end users

HaaConnect sits between your SaaS product and Meta's WhatsApp Cloud API — handling the complexity so you don't have to.

You integrate once

Call our REST API with your API key. Create invite links for your clients. That's it — we handle everything else.

Your clients onboard themselves

Each client follows a guided flow to connect their own WhatsApp Business number via Meta's Embedded Signup. No technical knowledge required.

Send messages instantly

Once connected, use our API to send text, template, and media messages on behalf of any of your clients — with full delivery tracking.

Features

Everything a SaaS platform needs

🔗

Embedded Signup

Guided Meta onboarding flow hosted by HaaConnect. Your clients connect their WABA in minutes — no Meta developer access needed on their end.

📨

Multi-tenant Messaging

Send text, template, and media messages for any of your connected tenants via a single API call. Each message goes from the tenant's own WhatsApp number.

📊

Delivery Tracking

Full message lifecycle: Queued → Sent → Delivered → Read → Failed. Webhook callbacks to your app on every status change.

🔔

Incoming Message Routing

Incoming WhatsApp messages from your tenant's clients are forwarded to your application's webhook — so you can build two-way chat experiences.

🔒

Secure Credential Management

Tenant WhatsApp tokens are encrypted with AES-256-GCM and stored securely. Keys managed via Azure Key Vault. You never see raw Meta tokens.

⚡

Async Processing

Messages are queued via Azure Service Bus and processed by a background worker with automatic Polly retry — ensuring reliable delivery even under load.

Integration modes

Three ways to integrate

From zero-code to fully custom — pick the model that fits your product.

🔗

Invite Link

Call HaaConnect API → get a signed URL → send it to your client. HaaConnect hosts the entire onboarding experience.

Zero frontend work

🪟

Embedded Widget

Popular

Embed an iFrame inside your existing dashboard. Your branding, HaaConnect's infrastructure.

2–3 hours integration

⚙️

Headless API

Build fully custom UI. Call HaaConnect REST endpoints at each onboarding step. Maximum branding control.

Full customization

Pricing

Simple, transparent pricing

Meta's conversation charges are passed through at cost — we never mark them up.

Starter

For SaaS apps getting started

✓ Up to 10 connected tenants
✓ All message types (text, template, media)
✓ Webhook callbacks
✓ API access

Growth

REST. JSON. No surprises.

Standard HTTP, standard status codes. No SDKs required. The kind of API you can start using in an afternoon.

POST /api/messaging/send

POST /api/messaging/send-template

POST /api/onboarding/invites

GET /api/tenants/{externalId}

GET /api/health

        // Create an onboarding invite

        POST /api/onboarding/invites

        X-Api-Key: hc_live_xxxxxxxxxxxx

        {

          "externalId": "ca_firm_456",

          "displayName": "Sharma & Associates",

          "redirectUrl": "https://taxzpro.in/dashboard"

        }

        // Response

        {

          "success": true,

          "data": {

            "inviteUrl": "https://haaconnect.com/onboard/abc123"

          }

        }

The WhatsApp Business APIplatform for SaaS builders.