Mailchimp MCP | API Key Mailchimp connector for AI agents

Tools your email marketing agent reaches for on Mailchimp, scoped per user.

CALL ANY TOOL

List campaigns and audiences, retrieve reports, get subscriber profiles, and analyze campaign performance.

mailchimp_list_get

List get

Retrieve information about a specific Mailchimp audience (list) by its ID.

Parameters

Name

Type

Required

Description

list_id

string

Required

The ID of the audience. Get it from `mailchimp_lists_list`.

fields

string

Optional

Comma-separated fields to return.

mailchimp_list_create

List create

mailchimp_list_delete

List delete

mailchimp_list_update

List update

mailchimp_list_member_add

List member add

mailchimp_list_member_get

List member get

mailchimp_list_tag_search

List tag search

mailchimp_list_members_list

List members list

mailchimp_list_member_update

List member update

mailchimp_list_member_upsert

List member upsert

mailchimp_list_webhook_create

List webhook create

mailchimp_list_webhooks_list

List webhooks list

mailchimp_list_member_tags_get

List member tags get

mailchimp_list_member_archive

List member archive

mailchimp_list_member_tags_update

List member tags update

mailchimp_list_merge_fields_list

List merge fields list

mailchimp_list_merge_field_create

List merge field create

mailchimp_list_member_delete_permanent

List member delete permanent

mailchimp_list_interest_category_create

List interest category create

mailchimp_list_interest_categories_list

List interest categories list

mailchimp_ping

Ping

mailchimp_lists_list

Lists list

mailchimp_report_get

Report get

mailchimp_account_info

Account info

mailchimp_segment_get

Segment get

mailchimp_batch_create

Batch create

mailchimp_campaign_get

Campaign get

mailchimp_reports_list

Reports list

mailchimp_template_get

Template get

mailchimp_campaign_send

Campaign send

Build your Agent

Drop the toolkit in, point it at the user, and your email marketing agent can use Mailchimp from the first run.

import { ScalekitClient } from "@scalekit-sdk/node";
import { DynamicStructuredTool } from "@langchain/core/tools";
import { createReactAgent } from "@langchain/langgraph/prebuilt";
import { z } from "zod";

const sk = new ScalekitClient(envUrl, clientId, clientSecret);

const { tools } = await sk.tools.listScopedTools("user_123", {
  filter: { connectionNames: ["mailchimp"], toolNames: ["mailchimp_campaigns_list", "mailchimp_campaign_get", "mailchimp_audiences_list"] },
  pageSize: 100,
});

const lcTools = tools.map((t) => new DynamicStructuredTool({
  name: t.tool.definition.name,
  description: t.tool.definition.description,
  schema: z.object({}).passthrough(),
  func: async (args) => {
    const { data } = await sk.tools.executeTool({
      toolName: t.tool.definition.name,
      identifier: "user_123",
      params: args,
    });
    return JSON.stringify(data);
  },
}));

const agent = createReactAgent({ llm, tools: lcTools });

import { ScalekitClient } from "@scalekit-sdk/node";
import OpenAI from "openai";

const sk = new ScalekitClient(envUrl, clientId, clientSecret);
const openai = new OpenAI();

const { tools } = await sk.tools.listScopedTools("user_123", {
  filter: { connectionNames: ["mailchimp"], toolNames: ["mailchimp_campaigns_list", "mailchimp_campaign_get", "mailchimp_audiences_list"] },
  pageSize: 100,
});

const llmTools = tools.map((t) => ({
  type: "function",
  function: {
    name: t.tool.definition.name,
    description: t.tool.definition.description,
    parameters: t.tool.definition.input_schema,
  },
}));

const resp = await openai.responses.create({
  model: "gpt-4o", input: prompt, tools: llmTools,
});

import { ScalekitClient } from "@scalekit-sdk/node";
import Anthropic from "@anthropic-ai/sdk";

const sk = new ScalekitClient(envUrl, clientId, clientSecret);
const anthropic = new Anthropic();

const { tools } = await sk.tools.listScopedTools("user_123", {
  filter: { connectionNames: ["mailchimp"], toolNames: ["mailchimp_campaigns_list", "mailchimp_campaign_get", "mailchimp_audiences_list"] },
  pageSize: 100,
});

const llmTools = tools.map((t) => ({
  name: t.tool.definition.name,
  description: t.tool.definition.description,
  input_schema: t.tool.definition.input_schema,
}));

const msg = await anthropic.messages.create({
  model: "claude-sonnet-4-6", max_tokens: 1024,
  tools: llmTools,
  messages: [{ role: "user", content: prompt }],
});

import { Agent } from "@google/adk/agents";
import {
  MCPToolset, StreamableHTTPConnectionParams,
} from "@google/adk/tools/mcp";

const toolset = new MCPToolset({
  connectionParams: new StreamableHTTPConnectionParams({
    url: "https://mcp.scalekit.com/mailchimp",
    headers: { Authorization: `Bearer ${userScopedToken}` },
  }),
});

const agent = new Agent({
  name: "agent", model: "gemini-2.0-flash",
  tools: await toolset.getTools(),
});

Try these prompts

Paste any prompt into your agent to start using Mailchimp.

Campaigns & reports

Copy the prompt

Copied

List all campaigns sent this month.

Copy the prompt

Copied

Get report for [campaign name].

Copy the prompt

Copied

Which campaigns had open rate above 25%?

Copy the prompt

Copied

List all scheduled campaigns.

Audiences & members

List all audiences.

Get stats for [audience name].

Copy the prompt

Copied

Find subscriber [email] in [audience].

Copy the prompt

Copied

Which audiences grew most this month?

Reporting

Copy the prompt

Copied

Average open rate across all campaigns.

Copy the prompt

Copied

Top 5 campaigns by revenue.

Copy the prompt

Copied

Unsubscribe rate by audience.

Copy the prompt

Copied

Click rate trend last 90 days.

SEE HOW AUTH WORKS

Users authorize Mailchimp once. Their credentials stay vaulted, every call is checked, and every action is logged.

Authorize

Your user connects

Mailchimp

once. We tie it to their identity and the meetings they approved — no shared bot account, no org-wide access

Who:

user ‘A’

when:

Once per user

access:

Limited to user

Store

Their

Mailchimp

token lives in a vault scoped to them. User A's meetings are never reachable by an agent acting for user B, even on the same connection

vault:

encrypted

scope:

per-user

tokens:

auto-refreshed

Resolve

When your agent calls a

Mailchimp

tool, we fetch the right token server-side. It never touches your agent, never appears in the LLM context, never shows up in your logs

speed:

~40ms

check:

before every call

seen by:

nobody

Audit

Every

Mailchimp

tool call is logged — who triggered it, which meeting was fetched, what came back. 90 days of history, tied to the user who authorized it

history:

90 days

export:

SIEM-ready

logged:

every call

Test other agents

Same per-user auth pattern across other email marketing agents and MCP connectors. Working code, live demos, fork what fits.

GTM and RevOps Teams

Outbound prospecting agent

Searches Apollo for prospects matching your ICP, scores and ranks them, drafts personalized outreach in Gmail, and logs every send to Google Sheets. Mail goes out as the rep, not from a shared inbox.

Support and Ops Teams

Email-to-calendar agent

Reads scheduling intent out of Gmail threads, resolves the times everyone actually has free, and creates the event on the user's own Google Calendar. No shared service account.

Gmail

Google Calendar

View agent

GTM and RevOps Teams

CRM AI agent

Reads the Granola transcript after every call, extracts next steps and updates the HubSpot record, drafts the follow-up in Gmail, and confirms in Slack, all on the rep's own delegated OAuth.

Support and Ops Teams

Freshdesk CSAT agent

Watches Freshdesk for resolved tickets, emails each requester a CSAT survey from Gmail, and writes the score and the verbatim back onto the ticket, every call on the support rep's own delegated OAuth.

Freshdesk

Gmail

View agent

Why Scalekit

Secure your agent's access. Connectors ship in minutes

01.

Shared tokens break per-user analytics

A shared token looks fine in a demo. In production every call looks like a service account. Scalekit resolves the real user credential so attribution, audit, and scope stay accurate.

// shared token
 audit → bot_service_account
 user_filter → broken

 // scalekit
 audit → user_abc
 scope → enforced ✓

02.

Authentication is not authorization

03.

Multi-tenancy is architectural

04.

Mailchimp today. Others tomorrow.

“Our agents act across Salesforce, Gong, Google Drive, and more, on behalf of every customer. Scalekit behind the scenes meant we can keep adding tools without ever rebuilding how credentials or tool calling work.”

Venu Madhav Kattagoni

Head of Engineering / Von

FAQs

Frequently Asked Questions

Does the agent access Mailchimp as the user or as a shared key?

As the user. Each workspace member authorizes once and Scalekit resolves their credential at request time. Audit logs attribute every action to that user, not a shared service account.

Where is the Mailchimp api key stored?

In Scalekit's managed AES-256 token vault, namespaced per tenant. Refresh is automatic. Revocation is a single dashboard action. Tokens never appear in prompts, logs, or LLM context.

Can I limit what the agent is allowed to do in Mailchimp?

Yes. Pass a tool name filter to listScopedTools so the email marketing agent only sees the subset you authorize. Pre-API-call scope checks block out-of-policy actions before the request reaches Mailchimp.

What happens when a user revokes Mailchimp access?

The connection is invalidated on the next tool call. Subsequent requests for that user fail closed with a clear error. Other users in the tenant remain unaffected. The event is logged for audit.

Can the agent access campaigns or audiences in other Mailchimp accounts on the same billing plan?

No. The API key is scoped to a single Mailchimp account. Separate accounts require separate connected accounts and API keys. Cross-account data access is not possible through the Mailchimp API.

On this page

Tool and actions Framework Compatibility Starter Prompt Auth Lifecycle Try Other Agents Why Scalekit