io.github.cyanheads/mailchimp-mcp-server

io.github.cyanheads/mailchimp-mcp-server

Mailchimp via MCP: draft, test, and send campaigns; manage audiences and subscribers; pull reports.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "mailchimp-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/mailchimp-mcp-server@0.6.0"
      ],
      "env": {
        "MAILCHIMP_API_KEY": "<your MAILCHIMP_API_KEY>",
        "MAILCHIMP_TIMEOUT_MS": "60000",
        "MAILCHIMP_MAX_RETRIES": "3",
        "MAILCHIMP_CONCURRENCY_LIMIT": "4",
        "MCP_LOG_LEVEL": "info"
      }
    }
  }
}
Environment variables
  • MAILCHIMP_API_KEYrequiredMailchimp Marketing API key, including the '-dc' data-center suffix (e.g. 'abc...-us22'). Generate at Mailchimp → Account → Extras → API keys.
  • MAILCHIMP_TIMEOUT_MSPer-request timeout in milliseconds.
  • MAILCHIMP_MAX_RETRIESMax retry attempts for transient upstream failures (0-10).
  • MAILCHIMP_CONCURRENCY_LIMITMax in-flight upstream requests across this process (1-10).
  • MCP_LOG_LEVELMinimum log level for output: debug, info, notice, warning, or error.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.6.0
Registry
active
Published
11/1/2026

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