1msg.io
Official WhatsApp Business API
Zoho People
Employee sync, leave, attendance
GreytHR
Roster sync and payroll linkage
Darwinbox
Bi-directional employee sync
Keka
Employee and org structure
Slack
Notifications and pulse nudges
Microsoft Teams
Feedback, kudos, notifications
Google Workspace
SSO and calendar sync
Claude API
AI summaries and coaching
Razorpay
Subscriptions and invoices
Zapier
5000+ app connections
REST API / Webhooks
Build custom integrations