Mailchimp

List all Mailchimp accounts connected for the authenticated user. Returns account IDs, names, data centers, and login emails.

List all audiences (lists) in the Mailchimp account with name search and pagination. Returns member count, open rate, click rate, and list rating for each audience.

Get detailed information about a specific Mailchimp audience (list), including stats, settings, and campaign defaults.

Troubleshoot authentication issues and get user profile info. Only use when another tool fails with a permission or authentication error — do NOT call proactively.

List automations (classic automations / customer journeys) in the Mailchimp account with status filtering, title search, and pagination.

Get detailed information about a specific Mailchimp automation including all associated emails with their delivery stats.

Why a call was refused with a billing error (402) and how to get unblocked. Reports whether this organization is entitled, its subscription status, tier, trial end, credits used and left this period, the price table and a link to the billing page. With checkout_tier, the organization owner also gets a Stripe Checkout link for that plan; a member gets the owner's contact and a message to forward. Call it after any 402. While waiting for a human to pay, poll it every 10 seconds for the first minute, every 30 seconds until 5 minutes, then every 60 seconds until 15 minutes, then stop and tell the human. Once it returns entitled: true, retry the blocked call; if the retry still returns 402, wait 15 seconds and retry once. A Checkout link is a payment link: give it to the organization owner only.

List campaigns in the Mailchimp account with status filtering, server-side title search, sorting, date range filtering, and pagination. Results include web_id, audience name, and send_time for easy identification. Use since_send_time/before_send_time to filter by send date window. Search: passing search routes every page to Mailchimp's /search-campaigns endpoint for accurate server-side matching — ideal for disambiguating campaigns by title. Search results come back most recently sent first, with unsent drafts last; sort_field and sort_dir apply to the unsearched listing, while status, type and the send-date window are applied to search results here. That endpoint returns one batch and accepts no pagination, so a broad search can be capped: when it is, the response carries search_total_matches — Mailchimp's own count of everything that matched, before any filter of yours — and narrowing the search is the only way to reach the rest. Do not subtract count from it: count is what is left after your filters, so the difference is not the number of unreachable campaigns. Paging: repeat the exact same call with cursor set to the previous response's nextCursor — a cursor only continues the call that issued it, and changing any filter (including adding or removing search) invalidates it.

Get detailed information about a specific Mailchimp campaign. Optionally includes content preview (text/HTML, truncated) and send checklist.

List the Mailchimp connections available to you — both ones you own and ones shared with you via an organization. Use this to discover connection IDs for set_default / share / rename / revoke.

Set the Mailchimp connection that should be used by default for subsequent Mailchimp tool calls. The default is scoped to the calling actor (your user account, or the API key being used).

Share an owned Mailchimp connection with all members of your organization, so teammates can use it without having to reconnect Mailchimp themselves. You must be the owner of the connection.

Stop sharing an owned Mailchimp connection with your organization. Teammates lose access immediately. You must be the owner.

Rename the display name of an owned Mailchimp connection. The OAuth grant and underlying account are unaffected — this only changes the human-readable label. You must be the owner.

Revoke (soft-delete) an owned Mailchimp connection. Any defaults pointing to it are invalidated and shared org members lose access. The OAuth grant at Mailchimp is NOT revoked by this tool — the user must disconnect via the dashboard if they want to fully revoke at Mailchimp. You must be the owner.

Submit feedback about missing tools, improvements, or workflow gaps in the Mailchimp MCP toolset. Not for user-facing issues like auth or API errors.

Health check for the Mailchimp MCP server. Does not call the Mailchimp API.

Get a detailed performance report for a sent Mailchimp campaign, including opens, clicks, bounces, forwards, ecommerce, delivery status, and industry comparison stats.

Get insights for a Mailchimp audience including growth history, activity, email clients, and geographic locations. Each data source is fetched in parallel and degrades gracefully on failure.

Get email activity (opens, clicks, bounces) for individual recipients of a sent Mailchimp campaign. Supports pagination.

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.

List segments for a Mailchimp audience with optional type filtering and pagination. Segment types include saved, static, and fuzzy.

List subscribers (members) of a Mailchimp audience with status filtering, email search, and pagination. Requires an audience_id. Use search to find specific subscribers by email or name. status accepts up to 5 values and merges them into one list ordered by email; when that merge reaches its per-status fetch cap the response carries truncated: true — narrow to one status or use search to see the rest. Paging: repeat the exact same call with cursor set to the previous response's nextCursor — a cursor only continues the call that issued it, and changing any filter (search, status, audience_id) invalidates it. Search caveat: Mailchimp's search endpoint returns one batch and accepts no pagination, so a broad search can be capped. When that happens the response carries search_total_matches — Mailchimp's own count of everything that matched, before the status filter is applied — and narrowing the search is the only way to reach the rest. Do not subtract count from it: count is what is left after filtering. Without search, the listing pages through the whole audience normally.

Get detailed information about a specific subscriber by email address or MD5 hash. Optionally includes recent activity feed.

List tags for a Mailchimp audience with pagination. Tags are user-defined labels applied to subscribers for organization and segmentation.

List email templates in the Mailchimp account with type filtering, name search, and pagination. Filter by type (user, base, gallery) to narrow results.