Docs · Updated 2026-10-01
Mailchimp — tool reference
Audience sizes, campaigns and campaign reports from the Mailchimp account you connect.
Server URL: https://toolcargo.com/mcp/mailchimp · Scope: connector:mailchimp · Included with Site Audit. Each successful tool call uses one plan call.
Connect your account
Open Mailchimp connection settings and paste an API key from Account & billing → Extras → API keys. The suffix after the dash (for example us21) is your Mailchimp datacenter; ToolCargo derives the host <dc>.api.mailchimp.com from it and contacts no other host. Mailchimp keys are not scoped, so create a dedicated key you can revoke.
ToolCargo stores the key encrypted and checks it by reading your account name. Disconnect deletes it. Only read requests are made: no campaign is sent or scheduled and no subscriber is added, changed or removed.
mailchimp_list_audiences
Audiences with member, unsubscribe and cleaned counts, average open and click rates and last send date. No subscriber records. count 1–100, offset for paging.
{ "count": 20, "offset": 0 }mailchimp_list_campaigns
Campaigns, newest send first, optionally filtered by status (save, paused, schedule, sending, sent): title, subject, audience, emails sent and summary open/click rates.
{ "status": "sent", "count": 10 }mailchimp_campaign_report
Report summary for one campaign: emails sent, opens, clicks, bounces, unsubscribes and abuse reports.
{ "campaign_id": "a1b2c3d4e5" }What the results cover
Rates are fractions (0.25 means 25%). Names and subject lines are external content. Mailchimp's API limits apply in addition to your ToolCargo plan. A revoked key marks the connection as needing reconnecting.
This is an original ToolCargo adapter for the documented Mailchimp Marketing API 3.0. It is not an official Mailchimp integration.