`mailchimp_get_ab_test_report`

Get Mailchimp A/B Test or Multivariate Report

Mailchimp

Description

Get per-variant performance data for an A/B split or multivariate campaign test. Returns variant-level metrics including opens, clicks, bounces, ecommerce, and winner status. Each variant includes a test_type field (subject_line, from_name, content, send_time, multivariate, unknown) and a changed_dimensions object with structured variant definition data (subject_line, from_name, reply_to, content_label, send_time_variant). Ecommerce data includes currency and an ecommerce_data_complete flag indicating whether all variants have data. Works for both A/B split (2 variants) and multivariate (multiple combinations) campaigns. Use mailchimp_list_campaigns with type filter ["absplit", "variate"] to find testable campaigns.

Read-onlyIdempotentOpen-world

Usage

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "mailchimp_get_ab_test_report",
    "arguments": {
      "campaign_id": "abc123",
      "reason": "Get variant-level A/B test results"
    }
  }
}

hopkin mailchimp ab-test-report

Flag	Type	Required	Description
`--account`	`string`	Optional	Mailchimp account ID. Required when multiple accounts are connected. Use mailchimp_list_accounts to see available accounts.
`--campaign`	`string`	Required	The Mailchimp campaign ID. Must be an A/B split or multivariate campaign.
`--include-ecommerce`	`boolean`	Optional	Include per-variant ecommerce data (orders, revenue). Only available if ecommerce tracking is enabled.

{
  "mcpServers": {
    "mailchimp": {
      "url": "https://mailchimp.mcp.hopkin.ai",
      "transport": "sse"
    }
  }
}

Parameters

Name	Type	Required	Description
`campaign_id`	`string`	Required	The Mailchimp campaign ID. Must be an A/B split or multivariate campaign.minLength: 1
`reason`	`string`	Required	Why this tool call is neededminLength: 1, maxLength: 500

Optional parameters (2)

Name	Type	Required	Description
`account_id`	`string`	Optional	Mailchimp account ID. Required when multiple accounts are connected. Use mailchimp_list_accounts to see available accounts.
`include_ecommerce`	`boolean`	Optional	Include per-variant ecommerce data (orders, revenue). Only available if ecommerce tracking is enabled.

Examples

Get A/B test report

{
  "campaign_id": "abc123",
  "reason": "Get variant-level A/B test results"
}

hopkin mailchimp ab-test-report --campaign abc123

Without ecommerce

{
  "campaign_id": "abc123",
  "include_ecommerce": false,
  "reason": "Get A/B test results without ecommerce data"
}

hopkin mailchimp ab-test-report --campaign abc123 --include-ecommerce false