Reads
Answer straight away. Nothing changes.
- Audience metadata and aggregate counts
- Audience-scoped campaign metadata and plaintext drafts
- Aggregate sent-campaign reports and draft-attempt reconciliation
Commerce & CRM · MCP server
Mailchimp MCP server
Prepare email drafts without sending them.
MegaMCP is a hosted Mailchimp MCP server that lets Claude, ChatGPT and Cursor read audiences, campaigns and aggregate reports and propose unsent drafts and draft edits that you approve.
LiveConnect it from your dashboard today.
- Tools
- 6 reads, 3 writes
- Works with
- Claude, ChatGPT, Cursor, Claude Code and VS Code
- Price
- Free to read, changes from $19/mo
Mailchimp6 reads · 3 changesMegaMCPApproval gate
- Claude
- ChatGPT
- Cursor
Live demo
Watch it work on Mailchimp
Ask in plain English. Your AI reads Mailchimp with real MegaMCP tools, then hands you a plan. Nothing moves until a person clicks Approve, and supported changes can be undone.
Tools in this example
mailchimp_get_campaign_reportReads live datamailchimp_create_plaintext_draftProposes a change plan
- You
How did last month's newsletter do? Then prepare this month's as a draft.
- Claude
mailchimp_get_campaign_reportDoneaggregate totalsmailchimp_create_plaintext_draftWaiting for approvalplan readySeptember's newsletter: 41% opens, 4.2% clicks. Here's October's draft. It won't send.
Create an unsent draftMailchimp · Newsletter audience2 changes- Add: SubjectOctober: 3 ways to winterize your home
- Add: Plain-text body (412 words)
- Check passed: Never sent or scheduled by MegaMCP
- Claude
Draft created in Mailchimp.
What your AI can do
Mailchimp MCP tools
Read enabled audience totals and aggregate campaign reports, then review new plaintext drafts or supported unsent draft edits. This list comes straight from the running product: 6 read tools and 3 write tools.
6 tools
Changes you approve
Each one returns a plan with a diff. Nothing moves until a person approves.
- Human-approved new unsent plaintext draft
- Reviewed unsent draft title, subject and preview edits
- Reviewed plaintext content replacement and supported inverse
Mailchimp guardrail
Sending, scheduling, subscriber exports and HTML content edits are unavailable. New draft creation is irreversible and journaled; unknown results are not retried automatically. Existing draft edits use fresh status/drift checks and readback, but concurrent vendor changes can race a write.
Plus complete diff previews, human approvals and the flight recorder on every connection. Live changes require a paid plan.
All 9 Mailchimp tools6 reads, 3 changes · straight from the running product
| What it does | Tool id | Type |
|---|---|---|
| Read audience totals | mailchimp_get_audience | Read |
| List audience campaigns | mailchimp_list_campaigns | Read |
| Inspect one audience campaign | mailchimp_get_campaign | Read |
| Read plaintext draft | mailchimp_get_draft_content | Read |
| Read aggregate campaign report | mailchimp_get_campaign_report | Read |
| Inspect uncertain draft creation | mailchimp_reconcile_draft_creation | Read |
| Review new plaintext draft | mailchimp_create_plaintext_draft | Change |
| Review draft title/subject/preview | mailchimp_update_draft_settings | Change |
| Review plaintext draft replacement | mailchimp_replace_draft_content | Change |
Example prompts
Mailchimp MCP prompts
Paste any of these into Claude, ChatGPT or Cursor once Mailchimp is connected.
“Show aggregate counts for this enabled audience.”
“Read this sent campaign's aggregate open and click totals.”
“Prepare this plaintext email as an unsent draft.”
“Prepare this draft subject change for review.”
“List the campaigns sent to this audience this quarter.”
“Read this draft's plaintext content.”
“Replace this draft's plaintext body with the approved copy.”
“Compare open and click rates across my last five campaigns.”
Setup
Mailchimp MCP setup in 3 steps
About two minutes for Claude, ChatGPT or Cursor. Nothing to install.
Connect Mailchimp
Start a free workspace and open Connections. One-click Mailchimp sign-in is built and appears in your dashboard once MegaMCP's Mailchimp app is registered. You can always use a dedicated Mailchimp Marketing API key with explicit account-wide access consent.
Add MegaMCP to your AI app
Every app uses the same server URL.
MCP server URLhttps://megamcp.com/api/mcpAsk in plain English
Try “Show aggregate counts for this enabled audience.” Reports answer straight away. Anything that changes Mailchimp comes back as a plan for you to approve.
Safety
Hand AI the keys. Keep the brakes.
The same loop guards every MegaMCP connection: ask, see the diff, approve, undo.
Approval before every change
Mailchimp write tools never touch Mailchimp directly. They return a plan, and a person approves it in the dashboard, or in chat if an admin allows it.
Approval requestedMailchimp · 1 plan waitingDashboard · just now
A diff first
Every plan lists each change with its before and after values, so you see exactly what will move before it does.
Plan previewMailchimp1 change
- Change: Value
BeforeAfter - Check passed: Checked again right before it applies
Undo for supported changes
Supported changes reverse through a separately reviewed undo plan. Anything that can't be undone is marked before you approve it.
Undo plan readyRestores the previous valuesReviewed like any other change
Receipts for everything
Platform checks stop stale edits, and the flight recorder logs every tool call, plan and approval, with who did it and from which AI app.
| Time | Event |
|---|---|
| 09:14 | mailchimp_get_audience |
| 09:15 | Plan created by Claude |
| 09:16 | Approved by Ana |
FAQ
Mailchimp MCP server questions
Is there an official Mailchimp MCP server?
Not for marketing campaigns, as far as we could find. As of October 2026, Mailchimp publishes an MCP server for its transactional email service (Mandrill) and a docs-search MCP server, and markets a Claude connector; we found no Marketing API MCP server in its developer docs. MegaMCP reads audiences and campaign reports and prepares drafts. It never sends.
What is a Mailchimp MCP server?
An MCP (Model Context Protocol) server lets AI assistants such as Claude, ChatGPT and Cursor use Mailchimp through tools. MegaMCP's hosted Mailchimp MCP server gives your assistant 6 read tools and 3 write tools for audiences, campaigns and aggregate reports, and every change waits for a human approval.
Does the Mailchimp MCP server work with ChatGPT?
Yes. MegaMCP is a remote MCP server with OAuth sign-in, so one URL works in ChatGPT (as an app, with developer mode on), Claude (as a custom connector), Cursor, Claude Code and VS Code. Your AI app's own plan decides whether it can add custom MCP servers.
Can it make changes to my Mailchimp account?
Yes, with your approval. It can propose unsent drafts and draft edits changes. Each one comes back as a plan with a line-by-line diff and waits for a human before anything moves. Sending, scheduling, subscriber exports and HTML content edits are unavailable. New draft creation is irreversible and journaled; unknown results are not retried automatically. Existing draft edits use fresh status/drift checks and readback, but concurrent vendor changes can race a write.
How do I connect Mailchimp to Claude or ChatGPT?
One-click Mailchimp sign-in is built and appears in your dashboard once MegaMCP's Mailchimp app is registered. You can always use a dedicated Mailchimp Marketing API key with explicit account-wide access consent. The key is encrypted; Mailchimp provides no audience-specific or read-only key scope. Record its actual vendor expiry, or attest to an older nonexpiring key. Imported audiences start disabled until assigned and enabled. Disconnect removes the local key; revoke the key in Mailchimp separately.
What does the Mailchimp MCP server cost?
Reading Mailchimp is free on MegaMCP's Free plan (100 reads a day, no card). Approved changes are included in every paid plan, from $19/month after a 5-day free trial, with unlimited runs and no credits. MegaMCP adds no markup: any subscription or API usage with the vendor stays between you and them.
Is my Mailchimp data safe?
Your Mailchimp credentials are encrypted at rest (AES-256-GCM) and bound to their connection, and MegaMCP never trains AI models on your data. Your AI only sees the accounts you switch on, members limited to certain clients only see those clients, and every tool call lands in the flight recorder.
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5 days. On the house.
Put Mega to work. Your ad budget stays yours.
No credit card to start. Every workspace comes with a sandbox ad account, so you can watch the whole ask, diff, approve, undo loop before you connect anything real.