Letterhead MCP
Email Newsletters
Use Letterhead MCP to take action in your AI tools
Use Zapier Agents for a quick no-code setup, or connect to any AI environment with the Zapier MCP server.
Try in any AI platformSupported actions
Add Content to Curations
Add a URL to a post, page, or other piece of content on the web to save to your curations library, which will make it easier to compose your newsletter.
Add or Update Audience Member (Legacy)
Deprecated — use "Add or Update Contact" instead, which works against your company-wide audience. This older action adds or updates an audience member on a single channel of your choosing. It still works so existing Zaps keep running, but new Zaps should prefer the contact action.
Add or Update Contact
Add a contact to your company-wide audience, or update an existing one. Identified by email — if the contact already exists, their details are updated. Optionally set the contact's subscription status on one or more channels. Requires a company-level API key.
Add Contact to Tag
Add a Letterhead tag to a contact in your company-wide audience, identified by email. Requires a company-level API key.
Add Audience Member to Tag (Legacy)
Deprecated — use "Add Contact to Tag" instead, which tags a contact in your company-wide audience. This older action tags an audience member on a single channel. It still works so existing Zaps keep running, but new Zaps should prefer the contact action.
Remove Contact From Tag
Remove a Letterhead tag from a contact in your company-wide audience, identified by email. Requires a company-level API key.
Remove Audience Member From Tag (Legacy)
Deprecated — use "Remove Contact from Tag" instead, which untags a contact in your company-wide audience. This older action removes an audience member from a channel-specific tag. It still works so existing Zaps keep running, but new Zaps should prefer the contact action.
Use Letterhead MCP with any AI assistant
Zapier Letterhead MCP lets you connect Letterhead's actions with any AI tool that supports MCP, all without managing integrations or writing glue code. It's built for developers who want flexibility without complexity.
Step 1: Generate your secure MCP URL
Get your unique, dynamic MCP server URL instantly. This endpoint securely connects your AI assistant to Zapier's vast integration network.
Step 2: Choose your Zapier Actions
Customize the specific actions your AI assistant can perform within Letterhead. Select and scope actions to align with your Letterhead workflows.
Step 3: Connect with your tool of choice
Integrate your AI Assistant seamlessly using your generated MCP endpoint, enabling your AI Assistant to execute real-world tasks securely and reliably.
Introducing the Zapier MCP integration
Why developers love Zapier MCP
- No need to build or host your own APIs
- Connect once, access 30,000+ Zapier actions
- Secure, scoped access by default
- Works across your favorite dev tools
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