Integrations overview
MessageDesk connects to the rest of your tech stack three ways:- Native extensions that work directly inside the app.
- Zapier for no-code automation across thousands of apps.
- Webhooks for custom developer integrations.
Native integrations
Grammarly
The Grammarly browser extension runs alongside MessageDesk and checks spelling, grammar, and tone as you compose messages, comments, and templates. You keep customer-facing texts on-brand without leaving the Inbox. It works in any browser where Grammarly is installed. No MessageDesk-side configuration required. → GrammarlyAutomation platform
Zapier
Zapier connects MessageDesk to 6,000+ apps through no-code triggers and actions. Use it to:- Push new MessageDesk messages into your CRM.
- Send appointment reminders from your calendar.
- Post notifications to Slack or Teams.
- Kick off SMS confirmations after a payment or form submission.
Developer and webhook integrations
Send Webhook (custom endpoint)
For developer-built integrations, or any system without a Zapier connector, use the Send Webhook Relay action to push MessageDesk events to any HTTPS endpoint you control. MessageDesk signs each event with anX-MessageDesk-Signature header so you can verify authenticity. Pick this tier when you’re streaming events into a data warehouse, custom CRM, internal microservice, or a serverless function.
- Send Webhook (Relay action): payload format, headers, signature validation, retry behavior
- Developer Tools (Settings): configure your webhook endpoint URL and signing secret
Webhook delivery requires a configured endpoint and signing secret in Settings → Developer Tools. Set those up before turning on a
Send Webhook Relay.Lightweight in-app lookups
The Contact Create Form in MessageDesk also includes HubSpot and Close CRM lookup buttons. One click pulls contact details from those CRMs into a new MessageDesk contact record. They aren’t full sync integrations. For full bi-directional CRM sync, use Zapier or a webhook-based pipeline.

