# Integrations

Authgear connects with the tools you already use — for marketing, operations, productivity, and communication.

-   
**Google Tag Manager**  
Marketing  
  
Measure Signup Conversion and Marketing ROI on Authgear](/content/integrations/google-tag-manager/index.html)
-   
**Google Workspace**  
Productivity Suite  
  
Let Users Access Google Workspace via Authgear](/content/integrations/google/index.html)
-   
**Mailchimp**  
Marketing  
  
Create or Update a Contact when a User Authenticates](/content/integrations/mailchimp/index.html)
-   
**Mailgun**  
Communication  
  
Use Mailgun as your email service provider](/content/integrations/mailgun/index.html)
-   
**Microsoft 365**  
Productivity Suite  
  
Let Users Access Microsoft 365 via Authgear](/content/integrations/microsoft-365/index.html)
-   
**Plausible**  
Marketing  
  
Analyze Campaign ROI and Signup Conversion with Plausible](/content/integrations/plausible/index.html)
-   
**Postmark**  
Communication  
  
Use Postmark as your email service provider](/content/integrations/postmark/index.html)
-   
**Salesforce**  
Operations  
  
Create a new Salesforce Lead when a new user first sign up](/content/integrations/salesforce/index.html)
-   
**Sendgrid**  
Communication  
  
Use Sendgrid as your email service provider](/content/integrations/sendgrid/index.html)
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**Slack**  
Operations  
  
Get Notifications on Slack for Authgear events](/content/integrations/slack/index.html)
-   
**Telegram**  
Communication  
  
Use Telegram-based OTP to verify logins](/content/integrations/telegram/index.html)
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**WhatsApp**  
Communication  
  
Use WhatsApp-based OTP to verify logins](/content/integrations/whatsapp/index.html)
-   
**Zapier**  
Operations  
  
Trigger a Zap on New User and Login](/content/integrations/zapier/index.html)