Documentation•v1 REST API

Pingstack Developer Platform

Integrate official Meta WhatsApp Cloud API messaging with your CRM, school ERP, billing software, and custom applications with 0% message markup.

Recommended First Step

5-Minute Quickstart Guide

Follow our step-by-step tutorial to connect your WhatsApp number, generate an API key, and send your first template notification in less than 5 minutes.

Start Quickstart

Core API Capabilities

Messages API

Send pre-approved Meta WhatsApp templates with positional variables and 24h session text messages.

Campaigns & Broadcasts

Target audience groups, contact lists, or pass direct CRM recipient arrays without prior contact synchronization.

Outbound Webhooks

Receive real-time notifications for incoming customer messages, delivery receipts, and campaign completions.

Contacts & Audiences

Synchronize customer profiles, manage custom fields, apply tags, and organize audience segments.

Instant Code Example

Send a WhatsApp Template Notification

curl -X POST https://app.pingstack.in/api/v1/messages \
  -H "Authorization: Bearer ps_secret_live_xxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: invoice-reminder-998" \
  -d '{
    "to": "919876543210",
    "template": "fee_reminder",
    "variables": ["Rahul", "₹2,500"]
  }'