MailStream MCP server

The first MCP server for physical mail: send postcards and letters, manage lists and campaigns.

Category: Other

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Source: official MCP Registry entry app.mailstream/mailstream

Direct MCP URL and setup

CLAUDE CODE

claude mcp add --transport http app-mailstream-mailstream https://my.mailstream.app/mcp

CURSOR / VS CODE (mcp.json)

{ "mcpServers": { "app-mailstream-mailstream": { "url": "https://my.mailstream.app/mcp" } } }