Connect ChatGPT to MailMCP
ChatGPT supports MCP servers via Applications in settings. Requires a ChatGPT Plus, Team or Enterprise subscription.
Open Applications settings
On chatgpt.com, click on your avatar at the bottom left then Settings. In the left menu, select Applications.
Path
Settings > Applications > Advanced settings > Create an app
Create a new MCP application
In the Advanced settings section, click on Create an app. Fill in the form:
Name
MailMCP
Description (optional)
Email management via MCP
MCP server URL
https://mailmcp.io/mcp/VOTRE_CLIENT_ID
Configure OAuth authentication
In the Authentication dropdown, select OAuth. Then in Advanced settings, enter your credentials:
Authentication
OAuth
Click on Advanced settings ("Enter a valid MCP server URL to verify detected OAuth settings") to access OAuth fields once the URL is validated.
Accept the security warning
OpenAI displays a warning: "Using custom MCP servers involves risks". Check the box "I understand and wish to continue" then click on Create.
Use in a conversation
Open a new conversation. MailMCP will be available as a tool. Test:
Note: OpenAI has not reviewed or verified the MailMCP application. This is normal for any custom MCP application (not published on the store). Your data flows directly via an SSL/TLS encrypted connection. You can revoke access at any time from Applications settings.
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