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Mailchimp

Connect Claude, ChatGPT or Cursor to Mailchimp via MCP. Read audiences, campaigns, reports, and search members with a Marketing API key.

Manual setup 5 tools

Overview

Connect Mailchimp so AI clients can browse audiences, campaigns, performance reports, and search subscribers via the Mailchimp Marketing API.

This integration is read-first: list and search tools only. Creating campaigns, sending email, or updating subscribers is not included.

Prerequisites

  • A Mailchimp account with Marketing API access
  • Permission to create API keys (Account Owner or Admin)
  • A stackgate.ai account

Getting credentials

  1. Sign in to Mailchimp for the account you want to connect.
  2. Open your profile menu → Account & billing → Extras → API keys (or Profile → Extras → API keys).
  3. Create an API key and copy it immediately. Keys end with your datacenter suffix (e.g. -us1, -us21).
  4. In stackgate.ai, open My Integrations → Mailchimp.
  5. Paste the Marketing API key and save. stackgate.ai verifies the key against Mailchimp's /ping endpoint and stores the correct datacenter host.
  6. Optionally use Edit tool access to keep the connection read-only.

See the Mailchimp Marketing API quick start.

Using with AI clients

  • Dedicated endpoint: POST /mcp/mailchimp with a Sanctum bearer token
  • Private gateway: one config for all integrations — use mailchimp__* namespaced tools

Example prompts:

  • "List my Mailchimp audiences."
  • "Show the report for campaign ID abc123."
  • "Search Mailchimp members for john@example.com."

Troubleshooting

  • 422 integration not configured — complete the API key form in My Integrations.
  • 401 Unauthorized — regenerate the API key in Mailchimp and update My Integrations.
  • Invalid datacenter suffix — Mailchimp keys must include the -us1 style suffix from the key creation screen.
  • 429 Too many requests — Mailchimp limits concurrent connections (about 10). Retry after a short delay or reduce parallel tool calls.
  • Empty campaign report — reports are only available for sent campaigns; draft or scheduled campaigns return errors from Mailchimp.

Available tools

  • list_audiences

    List Mailchimp audiences (lists) with optional pagination.

  • get_audience

    Get a Mailchimp audience (list) by ID, including stats and campaign defaults.

  • list_campaigns

    List Mailchimp campaigns with optional status filter and pagination.

  • get_campaign_report

    Get performance report metrics for a sent Mailchimp campaign.

  • search_members

    Search Mailchimp audience members by email address or name.

MCP endpoint: https://stackgate.ai/mcp/mailchimp (HTTP) or via the private gateway.

Create account Documentation