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openapi: 3.2.0
info:
title: WhatSync Groups API
version: '2026-10-01'
description: 'Use WhatsApp from Claude, ChatGPT, n8n, Make, Zapier or your own code: read, search and send WhatsApp messages, manage groups, Business templates, campaigns and forms, and receive signed webhooks. WhatsApp tools and signed webhooks with an account API key. API keys and webhooks are part of the Max plan and up (https://whatsync.app/pricing); other accounts get 403 plan_required. Personal WhatsApp numbers can send 50 messages a day through the API (429 daily_limit_reached); the official Business API has no WhatSync daily limit. Docs: https://whatsync.app/docs/api/quickstart The Business template routes under /api/send-template use a workspace service API key instead and are used by Attio workflows.'
contact:
name: WhatSync support
email: hello@whatsync.app
url: https://whatsync.app/contact
servers:
- url: https://whatsync.app
security:
- bearerKey: []
- headerKey: []
tags:
# --- truncated at 32 KB (123 KB total) ---
# Full source: https://artifacts.apis.io/whatsync-app/openapi/whatsync-app-groups-api-openapi.yml