io.github.cyanheads/mailchimp-mcp-server

Mailchimp via MCP: draft, test, and send campaigns; manage audiences and subscribers; pull reports.

1 GitHub

No known CVEs

No license

Actively maintained

Last commit 16d ago

Works with most clients

Transport: stdio, sse, http

0 tools

Grade F

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Marketing Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mailchimp": {
      "env": {
        "MCP_LOG_LEVEL": "info",
        "MAILCHIMP_API_KEY": "your-key-with-dc-suffix-e.g.-us22",
        "MCP_TRANSPORT_TYPE": "stdio"
      },
      "args": [
        "@cyanheads/mailchimp-mcp-server@latest"
      ],
      "type": "stdio",
      "command": "bunx"
    }
  }
}

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What io.github.cyanheads/mailchimp-mcp-server does

Eighteen always-on tools plus two conditional ones — mailchimp_assets (when MAILCHIMP_ASSETS_DIR is set) and mailchimp_local_templates (when MAILCHIMP_TEMPLATES_DIR is set). Workflow helpers orchestrate common flows end-to-end, primitive tools expose fine-grained CRUD, and the instruction tool returns procedural guidance merged with live account state.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

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Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

37/100across 5 weighted dimensions

How we score →

0255075100

−63

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Compatibility

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Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

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Frequently Asked Questions

Is io.github.cyanheads/mailchimp-mcp-server safe to use?: io.github.cyanheads/mailchimp-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.cyanheads/mailchimp-mcp-server?: io.github.cyanheads/mailchimp-mcp-server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with io.github.cyanheads/mailchimp-mcp-server?: io.github.cyanheads/mailchimp-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.github.cyanheads/mailchimp-mcp-server actively maintained?: io.github.cyanheads/mailchimp-mcp-server is actively maintained — last commit was 16 days ago. It has 1 GitHub stars.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

{ "mcpServers": { "mailchimp": { "env": { "MCP_LOG_LEVEL": "info", "MAILCHIMP_API_KEY": "your-key-with-dc-suffix-e.g.-us22", "MCP_TRANSPORT_TYPE": "stdio" }, "args": [ "@cyanheads/mailchimp-mcp-server@latest" ], "type": "stdio", "command": "bunx" } } }

Tools

Eighteen always-on tools plus two conditional ones — mailchimp_assets (when MAILCHIMP_ASSETS_DIR is set) and mailchimp_local_templates (when MAILCHIMP_TEMPLATES_DIR is set). Workflow helpers orchestrate common flows end-to-end, primitive tools expose fine-grained CRUD, and the instruction tool returns procedural guidance merged with live account state.

Tool Name

Description

mailchimp_account

Account profile, plan, data center, total subscribers, and the Chimp Chatter activity feed.

mailchimp_audiences

Manage audiences (lists) — read, create/update, per-audience analytics, signup-form config. No delete.

mailchimp_audience_overview

One-call audience health digest: info, stats, growth history, top email clients, merge-field schema.

mailchimp_subscribers

Subscriber CRUD + tags/notes/activity. archive is the strongest delete available.

mailchimp_upsert_subscriber

Add or update a subscriber idempotently with status, merge fields, tags, and optional note.

mailchimp_find_subscriber

Locate a subscriber by email in one audience or across the account.

mailchimp_import_subscribers

Batch add/update subscribers (capped at 500/call). Status defaults to pending (double-opt-in).

mailchimp_segments

CRUD for audience segments (saved, static, fuzzy) plus member listing and batch add/remove.

mailchimp_merge_fields

Read + create/update custom subscriber attributes. No delete — drops data across all subscribers.

`mailchim

Frequently Asked Questions

Is io.github.cyanheads/mailchimp-mcp-server safe to use?

io.github.cyanheads/mailchimp-mcp-server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.cyanheads/mailchimp-mcp-server?

io.github.cyanheads/mailchimp-mcp-server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with io.github.cyanheads/mailchimp-mcp-server?

io.github.cyanheads/mailchimp-mcp-server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is io.github.cyanheads/mailchimp-mcp-server actively maintained?

io.github.cyanheads/mailchimp-mcp-server is actively maintained — last commit was 16 days ago. It has 1 GitHub stars.

@cyanheads/mailchimp-mcp-server

Draft, test, and send Mailchimp campaigns straight from your MCP client — with audience management, subscriber CRUD, and post-send analytics behind safe-by-default send gates. STDIO or Streamable HTTP.

18 Tools (+2 conditional) • 4 Resources • 1 Prompt

Tools

Tool Name	Description
`mailchimp_account`	Account profile, plan, data center, total subscribers, and the Chimp Chatter activity feed.
`mailchimp_audiences`	Manage audiences (lists) — read, create/update, per-audience analytics, signup-form config. No delete.
`mailchimp_audience_overview`	One-call audience health digest: info, stats, growth history, top email clients, merge-field schema.
`mailchimp_subscribers`	Subscriber CRUD + tags/notes/activity. `archive` is the strongest delete available.
`mailchimp_upsert_subscriber`	Add or update a subscriber idempotently with status, merge fields, tags, and optional note.
`mailchimp_find_subscriber`	Locate a subscriber by email in one audience or across the account.
`mailchimp_import_subscribers`	Batch add/update subscribers (capped at 500/call). Status defaults to `pending` (double-opt-in).
`mailchimp_segments`	CRUD for audience segments (saved, static, fuzzy) plus member listing and batch add/remove.
`mailchimp_merge_fields`	Read + create/update custom subscriber attributes. No delete — drops data across all subscribers.
`mailchim

... View full README on GitHub