Mailchimp

Live

Audiences, campaigns and campaign reports from Mailchimp.

Paste a Mailchimp API key. List audiences with member counts, list recent campaigns and read a campaign's report summary. Read-only: it never sends campaigns or changes subscribers. Only the <dc>.api.mailchimp.com host named by your key is contacted.

Start free Tool reference

Server URL

streamable http

https://toolcargo.com/mcp/mailchimp

Claude Code

terminal

claude mcp add --transport http --scope user toolcargo-mailchimp https://toolcargo.com/mcp/mailchimp \
  --header "Authorization: Bearer YOUR_API_KEY"

Create a key in your dashboard. Other clients: setup guides.

What it helps you do

Audience sizes and engagement
Recent campaigns with open/click rates
Campaign report: opens, clicks, bounces, unsubscribes

Built for: Marketers who already send from Mailchimp.

Example requests

Last newsletter

“With ToolCargo Mailchimp, how did our last sent campaign perform?”

Emails sent, open and click rates, bounces and unsubscribes.

Step-by-step workflows: pre-launch check · fixing link previews

Tools

Tool	What it does	Access
`mailchimp_list_audiences` List Mailchimp audiences	Audiences (lists) on your Mailchimp account with member, unsubscribe and cleaned counts, average open and click rates and last send date. No subscriber records are returned.	Read-only
`mailchimp_list_campaigns` List Mailchimp campaigns	Recent campaigns, newest send first, optionally filtered by status: title, subject, audience, emails sent and summary open/click rates.	Read-only
`mailchimp_campaign_report` Mailchimp campaign report	Report summary for one sent campaign: emails sent, opens, clicks, bounces, unsubscribes and abuse reports. Read-only.	Read-only

Requirements

• A ToolCargo account with Site Audit activated (free).
• A Mailchimp API key (Account → Extras → API keys). Connect at /mailchimp.

Limitations

• Read-only. Does not send, schedule or edit campaigns, or add or remove subscribers.
• No subscriber records are returned; only counts and rates.
• Up to 100 rows per page.
• The key is encrypted and deleted on disconnect. Mailchimp API keys have full account access, so create a dedicated key you can revoke.

Supported clients

“Tested” means we connected that client to this endpoint and ran a tool call ourselves. “Documented” means the client supports this setup per its own docs, but we have not tested it yet.

Claude Code	API key header	Documented, not yet tested	This endpoint has not yet been tested in this client. See the setup guide.
Claude (claude.ai)	OAuth sign-in	Documented, not yet tested	This endpoint has not yet been tested in this client. See the setup guide.
Cursor	API key header	Documented, not yet tested	This endpoint has not yet been tested in this client. See the setup guide.
VS Code (Copilot agent mode)	API key header	Documented, not yet tested	This endpoint has not yet been tested in this client. See the setup guide.
ChatGPT (developer mode)	OAuth sign-in	Documented, not yet tested	This endpoint has not yet been tested in this client. See the setup guide.
MCP Inspector	API key header	Documented, not yet tested	This endpoint has not yet been tested in this client. See the setup guide.

Pricing

Included with Site Audit. Each successful Mailchimp tool call counts as one shared Site Audit call.

Free

For trying the connector on your own sites.

50 calls/month

Pro

$12/mo

For freelancers and agencies auditing client sites every week.

2,000 calls/month

Proposed test price. See the pricing page for checkout status.

Full pricing and billing details